Dell DR4100 ユーザーガイド

タイプ
ユーザーガイド
Dell DR Series System
Administrator Guide
メモ、注意、警告
メモ: コンピュータを使いやすくするための重要な情報を説明しています。
注意: ハードウェアの損傷やデータの損失の可能性を示し、その問題を回避するための方法を説明してい
ます。
警告: 物的損害、けが、または死亡の原因となる可能性があることを示しています。
© 2013 Dell Inc.
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2013 - 09
Rev. A05
目次
1 DR Series システムの概要......................................................................................................9
DR Series システム GUI マニュアルについて.....................................................................................................9
What's New In This Release.................................................................................................................................... 9
その他の情報........................................................................................................................................................10
ソースコードの入手............................................................................................................................................10
2 Understanding the DR Series System....................................................................................11
About the DR Series System...................................................................................................................................12
ドライブ容量と使用可能な物理容量............................................................................................................... 12
内蔵のドライブ容量..................................................................................................................................... 13
外付けのドライブ容量 ................................................................................................................................ 13
Data Storage Terminology and Concepts...............................................................................................................13
Data Deduplication and Compression..............................................................................................................16
Replication........................................................................................................................................................17
リバース複製................................................................................................................................................. 18
リバース複製:代替方法............................................................................................................................. 19
Supported File System Protocols............................................................................................................................19
NFS...................................................................................................................................................................20
CIFS.................................................................................................................................................................. 20
CIFS ACL サポート..........................................................................................................................................20
Access Control List Support in Containers...................................................................................................... 21
既存のコンテナ(1.1 よりも前のリリース)........................................................................................... 22
Unix Permissions Guidelines............................................................................................................................23
Windows の許可のガイドライン.................................................................................................................23
OpenStorage Technology (OST): DR Series System...............................................................................................24
OpenStorage TechnologyOSTAPI............................................................................................................25
Software Components and Operational Guidelines.........................................................................................26
Rapid Data Storage (RDS): DR Series System........................................................................................................27
Rapid OFS (ROFS) API...................................................................................................................................... 27
DR Series System and Data Operations................................................................................................................. 27
DR Series Expansion Shelf...............................................................................................................................28
Understanding About Adding a DR Series Expansion Shelf............................................................................ 29
Supported Software and Hardware........................................................................................................................29
Terminal Emulation Applications......................................................................................................................30
DR Series — Expansion Shelf Cabling................................................................................................................... 30
DR Series システム拡張シェルフの追加...........................................................................................................32
3 Setting Up the DR Series System........................................................................................... 35
Interacting With the DR Series System.................................................................................................................. 35
Networking Preparations for the DR Series System........................................................................................35
Connections for Initializing a DR Series System.....................................................................................................36
DR Series システムの初期化...............................................................................................................................37
デフォルトの IP アドレスとサブネットマスクアドレス....................................................................... 37
Local Console Connection................................................................................................................................38
iDRAC Connection............................................................................................................................................40
Logging in and Initializing the DR Series System.............................................................................................40
RACADM を使用した iDRAC6/iDRAC7 へのアクセス........................................................................................ 41
Logging in Using a Web Interface.......................................................................................................................... 42
Registering a DR Series System.......................................................................................................................44
Windows IE ブラウザでの Active Scripting(アクティブスクリプト)の有効化..................................45
Compatibility View Settings(互換表示設定)の無効化.............................................................................45
Dashboard(ダッシュボード)ページとオプション..................................................................................... 46
Dashboard(ダッシュボード)のオプションの理解...............................................................................47
システム警告の表示..................................................................................................................................... 47
イベント..........................................................................................................................................................47
正常性..............................................................................................................................................................48
使用状況..........................................................................................................................................................51
Viewing the Latest Range.................................................................................................................................51
Viewing a Specific Time Range........................................................................................................................52
System Usage...................................................................................................................................................53
Statistics: Container Page................................................................................................................................54
Statistics: Replication(統計:複製)ページ.............................................................................................. 57
Storage(ストレージ)ページとオプション...................................................................................................59
ストレージオプションの理解..................................................................................................................... 60
Containers........................................................................................................................................................ 60
Replication(複製)ページ........................................................................................................................... 61
Compression Level(圧縮レベル)...............................................................................................................61
Clients...............................................................................................................................................................61
About the Schedules Page and Options.................................................................................................................63
複製スケジュールの設定............................................................................................................................. 64
クリーニングスケジュールの設定.............................................................................................................64
About the System Configuration Page and Options............................................................................................... 64
System Configuration Page and Options..........................................................................................................65
Understanding the System Configuration Page Options..................................................................................67
Support(サポート)ページとオプション.......................................................................................................68
Support(サポート)ページオプションの理解........................................................................................69
4 Configuring the DR Series System Settings..........................................................................73
Configuring Networking Settings............................................................................................................................73
Networking Page and Ethernet Port Values.................................................................................................... 76
DR Series システムパスワードの管理...............................................................................................................77
Modifying the System Password......................................................................................................................77
Resetting the Default System Password..........................................................................................................77
DR Series システムのシャットダウン...............................................................................................................78
DR Series システムの再起動...............................................................................................................................78
圧縮レベルの設定................................................................................................................................................79
Active Directory の設定.........................................................................................................................................79
ローカルワークグループユーザーの設定....................................................................................................... 80
E-メールアラートの設定.................................................................................................................................... 81
受信者 E-メールアドレスの追加.................................................................................................................81
Editing or Deleting a Recipient Email Address.................................................................................................82
テストメッセージの送信............................................................................................................................. 82
管理者連絡先情報の設定....................................................................................................................................83
管理者連絡先情報の追加............................................................................................................................. 83
管理者連絡先情報の編集............................................................................................................................. 84
Managing Passwords.............................................................................................................................................84
Modifying the System Password......................................................................................................................84
Modifying Password Reset Options.................................................................................................................84
E-メールリレーホストの設定............................................................................................................................ 85
E-メールリレーホストの追加......................................................................................................................85
E-メールリレーホストの編集......................................................................................................................86
システム日時の設定............................................................................................................................................86
Editing System Date and Time Settings........................................................................................................... 87
Creating Containers................................................................................................................................................ 87
Configuring Share-Level Security...........................................................................................................................88
5 Managing DR Series Storage Operations.............................................................................91
Managing Container Operations............................................................................................................................ 91
Creating Storage Containers............................................................................................................................91
Editing Container Settings................................................................................................................................94
コンテナの削除............................................................................................................................................. 95
Moving Data Into a Container.......................................................................................................................... 96
Displaying Container Statistics........................................................................................................................ 96
Managing Replication Operations..........................................................................................................................98
複製関係の作成............................................................................................................................................. 98
複製関係の編集........................................................................................................................................... 100
複製関係の削除........................................................................................................................................... 101
複製の開始と停止....................................................................................................................................... 101
複製帯域幅の設定....................................................................................................................................... 101
複製統計の表示........................................................................................................................................... 102
Creating a Replication Schedule....................................................................................................................103
6 DR Series システムの監視..................................................................................................105
Monitoring Operations Using the Dashboard Page..............................................................................................105
システムステータスバー........................................................................................................................... 105
DR Series システムと Capacity(容量)、Storage Savings(ストレージ節約率)、Throughput
スループット)の各ペイン................................................................................................................... 106
System Information(システム情報)ペイン............................................................................................107
システム警告の監視..........................................................................................................................................107
Dashboard(ダッシュボード)の Alerts(警告)ページの使用.......................................................... 107
システム警告の表示................................................................................................................................... 108
システムイベントの監視..................................................................................................................................108
Dashboard(ダッシュボード)を使用したシステムイベントの表示.................................................108
Dashboard(ダッシュボード)の Events(イベント)オプションの使用.........................................109
Event Filter(イベントフィルタ)の使用................................................................................................. 110
システム正常性の監視......................................................................................................................................111
Dashboard(ダッシュボード)ページを使用したシステム正常性の監視.........................................111
Dashboard(ダッシュボード)の Health(正常性)オプションの使用............................................. 112
システム使用状況の監視..................................................................................................................................113
Displaying Current System Usage..................................................................................................................114
最新範囲値の設定....................................................................................................................................... 114
時間範囲値の設定 ...................................................................................................................................... 114
コンテナ統計の監視..........................................................................................................................................115
Displaying the Statistics: Container Page......................................................................................................115
複製統計の監視..................................................................................................................................................116
Displaying the Statistics: Replication Page....................................................................................................117
CLI を使用した複製統計の表示................................................................................................................. 118
7 DR Series システムのサポートオプションの使用.....................................................119
Support Information Pane.....................................................................................................................................119
診断ページとオプション..................................................................................................................................120
Generating a Diagnostics Log File .................................................................................................................120
診断ログファイルのダウンロード...........................................................................................................121
診断ログファイルの削除........................................................................................................................... 122
DR Series System Software Upgrade...................................................................................................................122
ソフトウェアアップグレードページとオプション..................................................................................... 122
Verifying the Current Software Version ........................................................................................................ 123
Upgrading the DR Series System Software................................................................................................... 123
Restore Manager (RM)......................................................................................................................................... 124
Downloading the Restore Manager...............................................................................................................124
Restore Manager USB キーの作成.............................................................................................................. 125
Restore ManagerRM)の実行................................................................................................................. 125
Resetting the Boot LUN Setting in PERC H700 BIOS After Running RM........................................................ 126
ハードウェアの削除または交換..................................................................................................................... 126
DR Series システム:正常なシャットダウンと起動..............................................................................126
DR Series システム NVRAM.........................................................................................................................127
8 OST の設定と使用................................................................................................................ 129
OST の理解.......................................................................................................................................................... 129
OpenStorage TechnologyOSTAPI................................................................................................................ 130
OST ガイドライン.............................................................................................................................................. 131
OST Terminology...................................................................................................................................................131
Supported OST Software and Components..........................................................................................................132
OST Required Configurations............................................................................................................................... 133
ベストプラクティス:OST DR Series システム........................................................................................133
クライアント側の最適化の設定..................................................................................................................... 133
Configuring an LSU............................................................................................................................................... 134
Installing the Dell OST Plug-In..............................................................................................................................134
Understanding the Dell OST Plug-In (Linux)...................................................................................................134
Understanding the Dell OST Plug-In (Windows)............................................................................................135
Installing the OST Plug-In for Backup Exec on Windows..............................................................................135
Installing the OST Plug-In for NetBackup on Windows.................................................................................136
Windows Dell OST プラグインのアンイストール...............................................................................137
Linux での NetBackup OST プラグインのインストール.....................................................................137
Linux Dell OST プラグインのアンイストール......................................................................................138
NetBackup を使用した DR Series システム情報の設定.................................................................................138
Using NetBackup CLI to Add DR Series System Name (Linux)......................................................................139
NetBackup CLI を使用した DR Series システム名の追加(Windows.................................................139
DR Series システム用の NetBackup の設定.............................................................................................. 139
Creating Disk Pools From LSUs......................................................................................................................140
ディスクプールを使用したストレージユニットの作成...................................................................... 141
Backing Up Data From a DR Series System (NetBackup)....................................................................................141
Restoring Data From a DR Series System Using NetBackup.........................................................................142
Duplicating Backup Images Between DR Series Systems Using NetBackup...............................................142
Using Backup Exec With a DR Series System (Windows)................................................................................... 143
OST Plug-In and Supported Versions.............................................................................................................143
Installation Prerequisites for the OST Plug-In for Backup Exec....................................................................143
Backup Exec GUI を使用した DR Series システムの設定........................................................................ 143
Backup Exec を使用した DR Series システム上でのバックアップの作成...........................................144
Optimizing Duplication Between DR Series Systems Using Backup Exec.................................................... 145
Restoring Data from a DR Series System Using Backup Exec...................................................................... 145
Understanding the OST CLI Commands................................................................................................................146
Supported DR Series System CLI Commands for OST................................................................................... 146
Understanding OST Plug-In Diagnostic Logs....................................................................................................... 147
Windows での OST プラグインログのローテーション.......................................................................... 147
Linux ユーティリティを使用した診断の収集................................................................................................147
Linux での OST プラグインログのローテーション.................................................................................148
メディアサーバー情報の収集に関するガイドライン.................................................................................148
Linux メディアサーバー上の NetBackup...................................................................................................148
Windows メディアサーバー上の NetBackup............................................................................................149
Windows メディアサーバー上の Backup Exec.........................................................................................149
9 Configuring and Using Rapid Data Storage........................................................................ 151
RDS Overview....................................................................................................................................................... 151
RDS Guidelines..................................................................................................................................................... 152
Best Practices: RDS and the DR Series System...................................................................................................152
Setting Client-Side Optimization........................................................................................................................... 152
Adding RDS Devices in NVBU.............................................................................................................................. 153
Removing RDS Devices From NVBU.....................................................................................................................153
Backing Up Data on the RDS Container Using NVBU.......................................................................................... 154
Replicating Data to an RDS Container Using NVBU.............................................................................................155
Restoring Data From a DR Series System Using NVBU........................................................................................156
Supported DR Series System CLI Commands for RDS......................................................................................... 157
10 Troubleshooting and Maintenance....................................................................................159
Troubleshooting Error Conditions.........................................................................................................................159
DR Series システムアラートとイベントメッセージ.................................................................................... 159
診断サービスについて......................................................................................................................................185
診断収集の理解........................................................................................................................................... 186
About the DR Series System Maintenance Mode................................................................................................186
About the DR Series System Support Mode.........................................................................................................188
DR Series システム操作のスケジュール.........................................................................................................188
Creating a Cleaner Schedule................................................................................................................................189
クリーニング統計の表示........................................................................................................................... 190
11 Supported Ports in a DR Series System............................................................................ 191
12 困ったときは.......................................................................................................................193
デルサポートに連絡する前に..........................................................................................................................193
デルへのお問い合わせ......................................................................................................................................194
1
DR Series システムの概要
DR Series システムのマニュアルには、Dell DR Series システムを使用したデータストレージ操作の実行方法お
よびストレージコンテナと複製コンテナの管理方法を説明するトピックが含まれています。DR Series シス
テムのトピックでは、バックアップ操作と複製操作の管理に使用可能な
DR Series システムグラフィカルユー
ザーインタフェースGUIが紹介され、説明されています。包括的な一連の GUI ベースの手順により、対応
ウェブブラウザを使用してすべての管理機能にアクセスできます。DR Series システム GUI でサポートされて
いない重要な管理タスクまたは操作がある場合、本書では、対応するコマンドラインインタフェース
CLI
コマンドを示して説明しています。DR Series システム CLI コマンドの詳細については、
Dell DR Series System
Command Line Reference Guide
Dell DR Series システムコマンドラインリファレンスガイド)を参照してくだ
さい。
DR Series システム GUI マニュアルについて
DR Series システムのマニュアルには、グラフィカルユーザーインタフェース(GUI)、およびそのメニュー、
タブ、およびオプションを使用して、多種多様なデータストレージ操作を実行したり、関連するストレージ
コンテナや複製コンテナを管理したりする方法が説明されています。
このマニュアルは、管理者エンドユーザーを対象にしており、DR Series システムの GUI 要素を使用してバッ
クアップ操作と重複排除操作を簡単に管理するための手順を紹介し、説明しています。包括的な一連の GUI
ベースの手順により、対応ウェブブラウザを使用して主要なすべての管理機能にアクセスできます。
DR Series システム GUI でサポートされていない重要な管理タスクまたは操作がある場合、このマニュアルで
は、対応する DR Series システムコマンドラインインタフェース(CLI)コマンドを示して説明しています。
メモ: DR Series システムで使用可能な対応ウェブブラウザについては、support.dell.com/manuals から入手
可能な
Dell DR Series System Interoperability Guide
Dell DR Series システム相互運用性ガイド)を参照し
てください。
What's New In This Release
The following features have been added to the DR Series systems for this release:
Advanced
Networking
Advanced networking feature allows you to modify the default bonded network configuration
of your DR Series system. It allows you to create and manage multiple bonds on the same
system to support your data, management and replication traffic. You must use the CLI to set
up advanced networking. However, you can view and edit the NIC bonding configuration using
the web user interface.
Rapid Data
Storage Protocol
Rapid Data Storage (RDS) is developed by Dell Quest and provides a logical disk interface for
use with network storage devices. RDS allows for better coordination and integration between
DR Series system backup, restore, and optimized duplication operations with Dell Quest
NetVault Backup (NVBU). You can back up, complete optimized replication, and restore data
from DR Series systems using the Rapid Data Access protocol using the Dell Quest NetVault
Backup DMA.
Daily Status
Reporting
Daily status reporting feature allows you to configure daily system statistics for container
status information on bytes ingested, deduplicated, and replicated.
9
Security
Questions for
Password Reset
Security questions for password reset allow you to add security questions to reset your DR
Series system password.
メモ: The maintenance mode User interface for the DR Series systems is updated in this release.
その他の情報
警告: システムに付属のマニュアルで安全および認可機関に関する情報を参照してください。保証に関
する情報は、この文書に含まれている場合と、別の文書として付属する場合とがあります。
Dell DR Series System Owner's Manual
Dell DR Series システムオーナーズマニュアル)は、ソリュー
ション機能に関する情報を提供し、システムのトラブルシューティングの方法、DR Series システムコ
ンポーネントのインストールと交換の方法について説明しています。このマニュアルは、
support.dell.com/manuals から入手できます。
Dell DR Series System Command Line Reference Guide
Dell DR Series システムコマンドラインリファレ
ンスガイド)は、DR Series システムコマンドラインインタフェース(CLI)を使用した DR Series シス
テムのデータバックアップ操作と複製操作の管理に関する情報を提供しています。このマニュアル
は、support.dell.com/manuals から入手できます。
Dell
DR Series System Getting Started GuideDell DR Series システムスタートアップガイド)は、DR
Series システムのセットアップ方法の概要について説明しています。また、仕様についても記載され
ています。このマニュアルは、support.dell.com/manuals から入手できます。
Setting
Up Your Dell DR4100 SystemDell DR4100 システムのセットアップ)は、Dell DR4100 システム
の初期化に必要なネットワーク、初期セットアップ、およびユーザーアカウントの設定に関する情報
を提供しています。このマニュアルは、support.dell.com/manuals から入手できます。
Dell DR Series System Interoperability Guide
Dell DR Series システム相互運用性ガイド)は、DR Series
システムで使用可能な対応ハードウェアおよびソフトウェアに関する情報を提供しています。この
マニュアルは、
support.dell.com/manuals から入手できます。
Dell PowerVault MD1200 and MD1220 Storage Enclosures Hardware Owner's Manual
Dell PowerVault
MD1200 および MD1220 ストレージエンクロージャハードウェアオーナーズマニュアル)は、DR Series
システムで使用可能なサポートされている外部データストレージ拡張シェルフハードウェア(エンク
ロージャ)に関する情報を提供しています。このマニュアルは、support.dell.com/manuals から入手で
きます。
システムに付属のメディアには、OSシステム管理ソフトウェア、システムアップデート、およびシ
ステムと同時に購入されたシステムコンポーネントに関するものを含め、システムの設定と管理用の
マニュアルとツールが収録されています。
メモ: 多くの場合、マニュアルアップデートは他のマニュアル内の情報よりも優先され、最新の更新され
たバージョンのマニュアルが記載されているので、support.dell.com/manuals でマニュアルアップデート
を常に確認し、初めにお読みください。
メモ: リリースノートには特定の製品リリースに関する既知の問題について文書化された最新情報が含
まれるので、support.dell.com/manuals でリリースノートを常に確認し、初めにお読みください。
ソースコードの入手
DR Series システムのソフトウェアの一部は、オープンソースソフトウェアが含まれている、またはそれで構
成されている場合があります。このオープンソースソフトウェアは、ソフトウェア配布における特定のライ
センスの条項および条件に基づいてご使用いただけます。
一部のオープンソースソフトウェアライセンスでは、対応するソースファイルを取得する権利も与えられま
す。これについて、または各プログラムに対応するソースファイルを見つける方法については、デルウェブ
サイト
opensource.dell.com を参照してください。
10
2
Understanding the DR Series System
The DR Series system is a high-performance, disk-based backup and recovery appliance that is simple to deploy and
manage, and offers unsurpassed Total Cost of Ownership benefits. Features such as innovative firmware and an all-
inclusive licensing model ensure optimal functionality and the assurance of no hidden costs for desired future features.
メモ: Unless otherwise noted, later references to "the system" or "DR Series system" are used interchangeably to
represent the Dell DR Series system.
The DR Series system has a simple installation process with full, intuitive remote setup and management capabilities. It
is available in the following drive capacities—2.7 Terabytes (TB), 5.4 TB, 9 TB, 18 TB, and 27 TB (the 27 TB drive capacity
was added in Release 2.0), and is ideal for both small enterprise and remote office environments. The DR Series system
and corresponding drive capacities are as follows:
300 Gigabyte (GB) drive capacity: 2.7 TB system (this system version does not support the addition of expansion
shelf enclosures)
600 GB drive capacity: 5.4 TB system
1 TB drive capacity: 9 TB system
2 TB drive capacity: 18 TB system
3 TB drive capacity: 27 TB system
メモ: To better understand the drive capacity and the available physical capacity for the drive types available in
the DR Series system, see Drive and Available Physical Capacities.
メモ: Release 2.0 also supports using an external data storage expansion shelf (also known as expansion
enclosures). The DR Series system supports up to two expansion enclosures per system. An added expansion shelf
enclosure must be equal to or greater than each DR Series system internal drive slot capacity (0–11). For more
information about expansion enclosures, see
Installing an Expansion Shelf License, DR Series System - Expansion
Shelf Cabling, and Expansion Shelf Licenses.
Using Dell deduplication and compression algorithm technology, this system can achieve data reduction levels ranging
from 10:1 to 50:1. This reduction in data results in less incremental storage needs and a smaller backup footprint. By
removing redundant data, the system provides deduplication and compression that delivers:
Fast, reliable backup and restore functionality
Reduces media usage and power and cooling requirements
Improves overall data protection and retention costs
The benefits of data deduplication can be extended across the enterprise—through the deduplicated replication
function—to provide a complete backup solution for multi-site environments.
The shorter Recovery Time Objectives (RTO) and more attainable Recovery Point Objectives (RPO) can also be assured
as critical backup data remains on disk and online longer. Capital and administrative costs are diminished at the same
time as internal service level agreements (SLAs) are more easily met.
The DR Series system includes the following:
Advanced data protection and disaster recovery
Simple management interface (using the system GUI)
11
Wide variety of data backup installations and environments
The Dell DR Series system contains data backup and management software preinstalled on a Dell hardware appliance,
which provides you with a robust disk-based data backup capability installed on a deduplication-enabled appliance.
The system supports two interface types, and the system software manages the storage containers using the following
interfaces:
A command line interface (CLI)
A graphical user interface (GUI)
About the DR Series System
The Dell DR Series system is a solution designed to reduce your backup data footprint using a number of comprehensive
backup and deduplication operations that optimize storage savings. Collectively, the DR Series system comes in two
types:
DR4000 system: this is preinstalled DR4000 system software on a Dell PowerEdge R510 appliance platform
DR4100 system: this is preinstalled DR4000 system software on a Dell PowerEdge R720xd appliance platform
The DR Series system consists of the following components:
Software — the system software supports record linkage and context-based lossless data compression
methods.
Hardware — there are two appliance types that support the DR Series:
DR4000 system: includes twelve 3.5 inch SAS or Nearline SAS chassis drives that are hot-swappable,
two power supplies for power redundancy, and two cabled 2.5-inch SAS drives for the operating
system. The operating system is installed on two 2.5–inch internal drives that are in a RAID 1
configuration in the DR4000 system.
DR4100 system: includes twelve 3.5 inch SAS or Nearline SAS chassis drives that are hot-swappable,
two power supplies for power redundancy, and includes two 2.5-inch drives that are hot-pluggable in
the rear.
メモ: For slot locations for the twelve 3.5–inch drives in the DR Series system types, see DR Series System
and Data Operations.
Expansion shelf—the system appliance supports the addition of up to two external Dell PowerVault MD1200
data storage expansion shelf enclosures. Adding an expansion shelf provides additional data storage for the DR
Series system and also requires a license. Each added expansion shelf enclosure must be equal to or greater
than each DR Series system internal drive slot capacity (0–11).
メモ: The 300 Gigabyte (GB) drive capacity (2.7TB) version of the DR Series system does not support the
addition of expansion shelf enclosures.
For more information, see Expansion Shelf Licenses. For more general information about the supported storage
enclosures, see “DR Series Expansion Shelf” in DR Series System and Data Operations, and support.dell.com/
manuals.
ドライブ容量と使用可能な物理容量
1 に、リリース 1.0.1.2 以降の DR4000 システムの内蔵システムドライブ容量と使用可能な物理容量10 進値
および 2 進値単位)を示します。リリース 2.0 以降、DR Series システムは次の 2 種類に分かれています。
DR4000 システム - 変更済みの Dell R510 アプリケーションプラットフォームにプリインストールされ
DR4000 システムソフトウェアで構成されます。
DR4100 システム - 変更済みの Dell R720xd アプリケーションプラットフォームにプリインストールさ
れた DR4000 システムソフトウェアで構成されます。
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内蔵のドライブ容量
1 に示されている容量値は、内蔵のドライブ容量および使用可能な物理容量であり、DR4000/DR4100 システ
ムリリースに関連付けられたオーバーヘッドに合わせて調整されています。
メモ: 1 で使用している略語、TB GB 10 進値のテラバイトおよびギガバイトを表しており、略語
TiB 2 進値のテビバイトを表しています。テビバイトは、標準に基づいたバイトの 2 進の倍数であり、
デジタル情報ストレージの単位です。
1. 内蔵のドライブ容量と使用可能な物理容量
DR Series システムのドライブ
容量
使用可能な物理容量(10 進数) 使用可能な物理容量(2 進数)
3 TBDR4100 システムのみ) 26.79 TB 23.8 TiB
2 TB 17.9 TB 15.9 TiB
1 TB 8.89 TB 7.9 TiB
600 GB 5.29 TB 4.6 TiB
300 GB 2.47 TB 2.2 TiB
拡張シェルフエンクロージャでサポートされる外付けのデータストレージ容量の一般情報については、DR
Series システムとデータ操作」の「DR Series 拡張シェルフ」を参照してください。
外付けのドライブ容量
2 に示されている容量値は、DR4000 または DR4100 システムにサポート対象の拡張シェルフエンクロージャ
を追加したときに使用できる、外付けドライブの追加ストレージ容量を表しています。追加のデータストレ
ージは、拡張シェルフエンクロージャを使用して 1 テラバイト(TB)、2 TB、または 3 TB 容量単位で追加で
きます。拡張シェルフエンクロージャの詳細については、DR Series システム拡張シェルフの追加拡張
シェルフライセンスのインストールおよびDR Series システム - 拡張シェルフのケーブル配線を参照し
てください。
2. 外付けのドライブ容量と使用可能な物理容量
DR Series システムのドライブ
容量
使用可能な物理容量(10 進数) 使用可能な物理容量(2 進数)
1 TB 8.89 TB 7.9 TiB
2 TB 17.89 TB 15.9 TiB
3 TB 26.79 TB 23.8 TiB
Data Storage Terminology and Concepts
This topic presents several key data storage terms and concepts that help you to better understand the role that the DR
Series system plays in meeting your data storage needs.
Data Deduplication and Compression: The DR Series system design draws upon a wide variety of data-reduction
technologies that include the use of advanced deduplication algorithms, in addition to the use of generic and custom
compression solutions that are effective across a large number of differing file types. The system uses a concept of
content-awareness where it analyzes data to better learn and understand the structure of your files and data types.
Once this is learned, it uses this method to improve your data reduction ratios while reducing resource consumption on
the host. The system uses block deduplication to address the increasing data growth, and this is well suited to providing
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the best results for routine and repeated data backups of structured data. Block-level deduplication works efficiently
where there are multiple duplicate versions of the same file. This is because it looks at the actual sequence of the data–
the 0s and 1s–that comprise the data.
Whenever a document is repeatedly backed up, the 0s and 1s stay the same because the file is simply being duplicated.
The similarities between two files can be easily identified using block deduplication because the sequence of their 0s
and 1s remain exactly the same. In contrast to this, there are differences in online data. Online data has few exact
duplicates. Instead, online data files include files that may contain a lot of similarities between each file. For example, a
majority of files that contribute to increased data storage requirements come pre-compressed by their native
applications, such as:
Images and video (such as the JPEG, MPEG, TIFF, GIF, PNG formats)
Compound documents (such as .zip files, email, HTML, web pages, and PDFs)
Microsoft Office application documents (including PowerPoint, MS-Word, Excel, and SharePoint)
メモ: The DR Series system experiences a reduced savings rate when the data it ingests is already
compression-enabled by the native data source. It is highly recommended that you disable data
compression used by the data source, and especially for first-time backups. For optimal savings, the native
data sources need to send data to the DR Series system in a raw state for ingestion.
Block deduplication is not as effective on existing compressed files due to the nature of file compression because its 0s
and 1s change from the original format. Data deduplication is a specialized form of data compression that eliminates a
lot of redundant data. The compression technique improves storage utilization, and it can be used in network data
transfers to reduce the number of bytes that must be sent across a link. Using deduplication, unique chunks of data, or
byte patterns, can be identified and stored during analysis. As the analysis continues, other chunks are compared to the
stored copy and when a match occurs, the redundant chunk is replaced with a small reference that points to its stored
chunk. This reduces the amount of data that must be stored or transferred, which contributes to network savings.
Network savings are achieved by the process of replicating data that has already undergone deduplication.
By contrast, standard file compression tools identify short repeated substrings inside individual files, with the intent of
storage-based data deduplication being to inspect large volumes of data and identify large amounts of data such as
entire files or large sections of files that are identical. Once this has been done, this process allows for the system to
store only one copy of the specific data. This copy will be additionally compressed using single-file compression
techniques. For example, there may be cases where an email system may contain 100 or more emails where the same 1
Megabyte (MB) file is sent as an attachment and the following shows how this is handled:
Without data deduplication, each time that email system is backed up, all 100 instances of the same attachment
are saved, which requires 100 MB of storage space.
With data deduplication, only one instance of the attachment is actually stored (all subsequent instances are
referenced back to the one saved copy), with the deduplication ratio being approximately 100 to 1). The unique
chunks of data that represent the attachment are deduplicated at the block chunking level.
メモ: The DR Series system does not support deduplication of any encrypted data, so there will be no
deduplication savings derived from ingesting encrypted data. The DR Series system cannot deduplicate
data that has already been encrypted because it considers that data to be unique, and as a result, cannot
deduplicate it.
In cases where self encrypting drives (SEDs) are used, when data is read by the backup application, it is decrypted by
the SED or the encryption layer. This works in the same way as if you were opening an MS-Word document that was
saved on a SED. This means that any data stored on a SED can be read and deduplicated. If you enable encryption in the
backup software, you will lose deduplication savings because each time the data is encrypted, the DR Series system
considers it to be unique.
Replication: Replication is the process by which the same key data is saved from multiple storage devices, with the goal
of maintaining consistency between redundant resources in data storage environments. Data replication improves the
level of fault-tolerance, which improves the reliability of maintaining saved data, and permits accessibility to the same
stored data. The DR Series system uses an active form of replication that lets you configure a primary-backup scheme.
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During replication, the system processes data storage requests from a specified source to a specified destination (also
known as a target) that acts as a replica of the original source data.
メモ: Starting with Release 2.0, the DR Series system software includes version checking that limits replication
only between other DR Series systems that run the same system software release version (DR Series systems
running Release 2.0.x software can only replicate with other DR Series systems that run the same release system
software). For example, Release 2.0.x systems will not be able to replicate with Release 2.1 or Release 3.0 systems,
but can replicate with systems running Release 2.0.0.1 or 2.0.0.2.
メモ: It is important to distinguish the difference between data that has been processed by backup and data that
has been processed by replication, since backup saves a copy of data that remains unchanged for a long period of
time.
Targets with replica data are read-only, and are updated with new or unique data during scheduled or manual
replications. The DR Series system can be considered to act as a form of the storage replication where the backed up
and deduplicated data is replicated in real-time or via a scheduled window. In a replication relationship between two DR
Series systems, this means that a relationship exists between a pair of systems, one acting as the source and the other
as a target in the replication pair (for example, with acme-west and acme-east). When this type of replication
relationship exists between distinct containers on two distinct DR Series systems, it can be considered bidirectional in
the sense that:
West1 container on the acme-west source system can replicate data to a separate East1 container on the
acme-east target system.
The East2 container on the target acme-east system can also replicate data back to the West2 container on the
source acme-west system.
This form of replication involves separate containers on two distinct DR Series systems. Target containers in replication
must always act as read-only, while source containers can act as read-write. Unlike NFS and CIFS containers, OST and
RDS container replication is handled by the two supported Data Management Applications (DMAs) on media servers.
For more information on OST, see Understanding OST. For more information on RDS, see Configuring and Using Rapid
Data Storage.
メモ: OST and RDS containers are categorized as Rapid Data Access (RDA) containers in DR Series systems.
This release of the DR Series system supports the 32:1 replication of data, whereby up to 32 source DR Series systems
can write data to different individual containers on a single, target DR Series system. This supports the use case where
branch or regional offices can each write their own data to a separate, distinct container on a main corporate DR Series
system.
メモ: Be aware that the storage capacity of the target DR Series system is directly affected by the number of
source systems writing to its containers, and by the amount being written by each of the source systems.
If the source and target systems in a replication pair reside in different Active Directory (AD) domains, then the data that
resides on the target DR Series system may not be accessible. When AD is used for authentication for DR Series
systems, the AD information is saved with the file. This can serve to restrict user access to the data based on the type of
AD permissions that are in place.
メモ: This same authentication information is replicated to the target DR Series system when you have replication
configured. To prevent domain access issues, ensure that both the target and source systems reside in the same
Active Directory domain.
Reverse Replication: The concept of reverse replication is not supported on DR Series systems. This is because replica
containers are always in a R-O (read-only) mode on the DR Series system, thus making write operations a non-
supported operation. Under very specific conditions, it might be possible for replica containers to support a type of write
operation whose sole function is to restore data from an archival target. For example, data could be replicated back to
the remote site where a data management application (DMA), also known as backup software, is connected to allow
this data to be restored directly.
15
This specific case applies only to configurations where data is backed up from a remote location to a local container,
and then replicated over a WAN to a replica container that is backed up to tape backup. The data needs to be restored
from the tape backup to the original location; first, restore the data back to a DR Series system replica container, and
then restore it back to the original source location of the data on the other side of the WAN link.
メモ: If you choose to use this alternate workaround method, you must set up a new data storage unit in the DMA
and import the images before a restore to the original location can occur.
To support this effort to leverage deduplication across the WAN to allow this scenario, complete the following:
1. Make sure that the replication operation has completed (between source and target).
2. Delete current replication relationship, and re-create replication relationship (reversing the source and target
roles).
3. Restore data to the original source container (now the target).
4. Make sure that the replication operation has completed.
5. Delete replication relationship and re-create replication relationship (restoring original source and target
destinations).
Under this scenario, a fraction of the data to be recovered is sent across the WAN link. This could speed up a remote
restore significantly. However, there are some downsides to this type of scenario:
If step 1 is not followed correctly, any changes not fully replicated are lost.
During steps 2 and 3, any data that is written to the original DR Series system source container may be lost.
During step 4, if the data is not fully replicated back before the switch is made, it may be lost.
Alternatively, you still could support this effort by completing the following:
1. Create a new container on the target DR Series system.
2. Set up replication from this container back to the source DR Series system container.
3. Set up a new disk storage unit in the DMA and make sure that the DMA is aware of any new images.
4. Import the old images back into the DMA from the target DR Series system (the original source location).
5. Use a new disk storage unit in the DMA, and then restore the data back to the original client.
Data Deduplication and Compression
The DR Series system design uses various data-reduction technologies, including advanced deduplication algorithms, in
addition to the generic and custom compression solutions that prove effective across many differing file types. Data
deduplication and compression is addressed in the following areas:
DR4000/DR4100 — The DR Series system backup and recovery appliances provide both efficient and high-
performance disk-based data protection to leverage the advanced deduplication and compression capabilities
in the DR Series system software. Based on technology that is now part of the Dell Fluid Data Architecture, the
DR Series systems provide a key component that performs backup, recovery, and data protection operations.
Deduplication — This technology eliminates redundant copies of data and in the process it decreases disk
capacity requirements and reduces the bandwidth needed for data transfer. Deduplication can be a major asset
for companies that are dealing with increasing data volumes and require a means for optimizing their data
protection.
Compression — This technology reduces the size of data that is stored, protected, and transmitted.
Compression helps companies improve their backup and recovery times while helping reduce infrastructure and
network resource constraints.
In general, DR Series systems (DR4000 and DR4100) are disk-based data protection appliances that offer advanced
deduplication and compression capabilities to reduce the time and cost associated with backing up and restoring data.
Based on deduplication and compression technology, the DR Series systems eliminate the need to maintain multiple
16
copies of the same data. This lets customers keep more data online longer and reduce the need for tape backup
dependency.
Using its deduplication and compression technology, DR Series systems can help achieve an expected data reduction
ratio of 15:1. Achieving this reduction in data means that you need fewer incremental storage operations to run and it
provides you with a smaller backup footprint. By removing redundant data, DR Series systems deliver fast reliable
backup and restore functionality, reduce media usage and power and cooling requirements, and improve your overall
data protection and retention costs.
You can extend the benefits of data deduplication across the enterprise as well–using the DR Series system
deduplication replication function–to provide a complete backup solution for multi-site environments. With 32:1
deduplicated replication, up to 32 nodes can be replicated simultaneously to separate, individual containers on one
node. The DR Series systems use compression with replication to shrink the data that is needed to be moved across the
wire to a container.
Replication can be scheduled based on your settings to occur during non-peak periods. The replication schedule you
create can be set and prioritized to ingest data over replication data to ensure the most optimal back up windows based
on your needs. The DR Series systems are Symantec OpenStorage Technology (OST) certified to provide tight
integration with its NetBackup and Backup Exec DMA products to allow them to control when backup images are
created, compressed, duplicated, and deleted, so that customers using these products can leverage the DR Series
system appliance as a disk.
The DR Series systems also provide seamless integration with a number of data management applications (DMA),
including Dell Quest NetVault Backup, CommVault replicated disk libraries, IBM Tivoli Storage Manager (TSM), EMC
Networker, ARCserve, and Veeam backup software applications. Ideal for both small-sized and medium-sized
companies as well as remote offices, the DR Series system provides data deduplication and compression support for
four data capacity points: 35 Terabytes (TB), 70 TB, 130 TB, or 270 TB.
メモ: For a complete list of supported DMAs in the 2.1 release of the DR Series system, see the
Dell DR Series
System Interoperability Guide
for details.
メモ: The DR Series system does not support deduplication of any encrypted data. So, there will be no
deduplication savings derived from ingesting encrypted data. The DR Series system cannot deduplicate data that
has already been encrypted because it considers that data to be unique, and as a result, it cannot deduplicate it.
Replication
Replication is the process by which the same key data is saved from multiple storage locations, with the goal being to
maintain its consistency between redundant resources in data storage environments. Data replication improves the
level of fault-tolerance, which improves the reliability of maintaining saved data, and permits accessibility to the same
stored data. The DR Series system uses an active form of replication that lets you configure a primary-backup scheme.
During replication, the system processes data storage requests from a specified source to a specified destination (also
known as a target) that acts as a replica of the original source data.
メモ: Starting with Release 2.0, the DR Series system software includes version checking that limits replication
only between other DR Series systems that run the same system software release version (DR Series systems
running Release 2.0.x software can only replicate with other DR Series systems that run the same release system
software). For example, Release 2.0.x systems will not be able to replicate with Release 2.1 or Release 3.0 systems,
but can replicate with systems running Release 2.0.0.1 or 2.0.0.2.
メモ: It is important to distinguish the difference between data that has been processed by backup, and data that
has been processed by replication. This is because backup saves a copy of data that generally remains unchanged
for a long period of time.
Targets with replication data are read-only, and are updated with new or unique data during scheduled or manual
replications. The DR Series system can be considered to act as a form of a storage replication process in which the
backup and deduplication data is replicated in real-time or via a scheduled window in a network environment. In a
17
replication relationship between two DR Series systems, this means that a relationship exists between a pair of systems.
One system acts as the source and the other as a target in this replication pair (for example, acme-west and acme-east).
When this type of relationship exists between distinct containers on two distinct DR Series systems, it can be
considered bidirectional in the sense that:
The West1 container on the acme-west source system can replicate data to a separate East1 container on the
acme-east target system.
The East2 container on the target acme-east system can also replicate data back to the West2 container on the
source acme-west system.
This form of replication involves separate containers on two distinct DR Series systems. Target containers in replication
must always act as read-only, while sources containers can act as read-write. Unlike NFS and CIFS containers, OST and
RDS container replication is handled by the two supported Data Management Applications (DMAs) on media servers.
For more information on OST, see Understanding OST. For more information on RDS, see Configuring and Using Rapid
Data Storage.
メモ: OST and RDS containers are categorized as Rapid Data Access (RDA) containers in DR Series systems.
The DR Series system supports the 32:1 replication of data, whereby up to 32 source DR Series systems can write data
to different individual containers on a single, target DR Series system. This supports the use case where branch or
regional offices can each write their own data to a separate, distinct container on a main corporate DR Series system.
メモ: Be aware that the storage capacity of the target DR Series system is directly affected by the number of
source systems writing to its containers, and by the amount being written by each of the source systems.
However, if the source and target systems in a replication pair are in different Active Directory (AD) domains, then the
data that resides on the target system may not be accessible. When AD is used to perform authentication for DR Series
systems, the AD information is saved with the file. This can act to restrict user access to the data based on the type of
AD permissions that are in place.
メモ: This same authentication information is replicated to the target DR Series system when you have replication
configured. To prevent domain access issues, ensure that both the target and source systems reside in the same
Active Directory domain.
リバース複製
リバース複製の概念は、DR Series システム上でサポートされている操作ではありません。これは、複製コン
テナが DR Series システム上で常に R-O(読み取り専用)モードになっているため、書き込み操作はサポート
対象外となるからです。
限られた一定の条件において、複製コンテナがある種の書き込み操作をサポートする場合があります。この
操作の目的は、データをアーカイブターゲットから復元することだけです。たとえば、データを直接復元で
きるように、データ管理アプリケーション
DMA)(あるいはバックアップソフトウェア)が接続されてい
るリモートサイトにそのデータの複製を戻す場合があります。
この特殊なケースに当てはまるのは、データがリモートロケーションからローカルコンテナにバックアップ
され、その後、
WAN 経由で複製コンテナにデータが複製され、その複製コンテナがテープにバックアップさ
れるという設定の場合のみです。このデータは、テープバックアップから元のロケーションに復元される必
要があります。最初に DR Series システムの複製コンテナに戻され、次に WAN リンクの反対側にある、デー
タの元のソースロケーションに戻されます。
メモ: この代替回避策を選択する場合は、DMA に新しいデータストレージユニットをセットアップし、
元のロケーションへの復元を行う前にイメージをインポートする必要があります。
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WAN を介したこのタイプの重複排除を利用するには、次の手順を実行します。
1. 複製操作が完了したことを確認します(ソースとターゲット間)。
2.
現在の複製関係を削除し、ソースとターゲットの役割を逆にして再度複製関係を作成します。
3. データを元のソースコンテナ(現在はターゲット)に復元します。
4.
複製操作が完了したことを確認します。
5.
複製関係を削除し、元のソースとターゲットの宛先に戻して、再度複製関係を作成します。
このシナリオでは、リカバリ対象となるわずかなデータが WAN リンク経由で送信されます。これにより、
モート復元に要する時間が大幅に短縮される可能性があります。ただし、このタイプのシナリオに対しては
いくつかの欠点があります。
手順 1 が正しく行われなかった場合、完全に複製されなかった変更はすべて失われます。
手順 2 3 の過程で、元の DR Series システムのソースコンテナに書き込まれているデータは、失われ
る可能性があります。
手順 4 の過程で、切り替えを行う前にデータが完全に複製されなかった場合、そのデータが失われる
可能性があります。
あるいは、次の手順を実行することにより、このタイプの操作をサポートできる場合もあります。
1. ターゲット DR Series システム上に新しいコンテナを作成します。
2. このコンテナからソース DR Series システムコンテナに戻す複製をセットアップします。
3. DMA に新しいディスクストレージユニットをセットアップし、DMA が新しいイメージを認識している
ことを確認します。
4. ターゲット DR Series システム(元のソースロケーション)から古いイメージをインポートして DMA
戻します。
5. DMA で新しいディスクストレージユニットを使用し、データを元のクライアントに復元します。
リバース複製:代替方法
代替のリバース複製方法をサポートするには、次の手順を実行してください。
1. ターゲット DR Series システム上に新しいコンテナを作成します。
2. このコンテナからソース DR Series システムのコンテナへの複製をセットアップします。
3. DMA に新しいディスクストレージユニットをセットアップし、DMA が新しいイメージを認識しているこ
とを確認します。
4. 古いイメージをターゲット DR Series システム(元のソースロケーション)から DMA にインポートしま
す。
5. DMA で新しいディスクストレージユニットを使用して、データを元のクライアントに復元します。
Supported File System Protocols
The DR Series system supports the following file system protocols:
Network File System (NFS)
Common Internet File System (CIFS)
Rapid Data Access (RDA)
OpenStorage Technology (OST)
Rapid Data Storage (RDS)
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メモ: The DR Series system supports three container connection types: NFS, CIFS, and RDA. OST and RDS provide
a logical disk interface that can be used with network storage devices to store data and support data storage
operations.
For more information on OST, see Understanding OST, Creating an OST or RDS Connection Type Container, and Creating
an NSF or CIFS Connection Type Container.
For more information on NFS and CIFS, see NFS, and CIFS. For more information on RDS, see Configuring and Using
Rapid Data Storage.
NFS
ネットワークファイルシステム(NFS)は、ファイルサーバー規格として規定されたファイルシステムプロ
トコルであり、コンピュータ間の通信に Remote Procedure CallRPC)メソッドを使用します。クライアント
は、ネットワーク経由のファイルアクセスを、ローカルストレージにアクセスするのと変わらない方法で行
うことができます。
NFS はクライアント - サーバーアプリケーションであり、クライアントは、リモートシステム上のファイル
をそれらがローカルシステム上にあるかのように表示、保存、および更新できます。システム管理者または
ネットワーク管理者は、ファイルシステムの全体または一部をマウントすることができ、マウントされたフ
ァイルシステム(または部分)には各ファイルに割り当てられている権限に従ってアクセスできます。NFS
プロトコルは、UnixMacintoshOpenVMSおよび Microsoft Windows オペレーティングシステムをサポート
しています。
CIFS
共通インターネットファイルシステム(CIFS)リモートファイルアクセスプロトコルは、DR Series システム
でサポートされており、サーバーメッセージブロック(SMB)とも呼ばれます。SMB は、Microsoft Windows
オペレーティングシステムが稼働するシステムでは、ネットワークファイルシステム(NFS)プロトコルよ
りも一般的に実行されます。CIFS は、プログラムによるリモートコンピュータ上のファイルまたはサービス
の要求を可能にします。
また、CIFS では、クライアント / サーバープログラミングモデルを使用します。このモデルでは、クライア
ントがファイルへのアクセスを要求したり、サーバーで実行中のプログラムにメッセージを送信したりしま
す。サーバーは、要求されたすべてのアクションを確認し、応答します。CIFS は、Microsoft が開発し、使用
していた SMB を公共用(またはオープン)にしたものです。
メモ: DR Series システムでは現在、サーバーメッセージブロックSMBバージョン 2.0 をサポートして
いません。
メモ: CIFS の機能制約の詳細については、support.dell.com/manuals
Dell DR Series System Interoperability
Guide
Dell DR Series システム相互運用性ガイド)を参照してください。
CIFS ACL サポート
DR4000 システムリリース 1.1 以降の DR Series システムソフトウェアでは、CIFS および共有レベルのアクセス
権限に対するアクセスコントロールリストACLの使用がサポートされています。ACL とは、その名が示す
とおり、アクセス権限のリストであり、任意のネットワークリソースに関連付けることができます。
ACL には、個々のユーザーまたはユーザーグループのアクセス権限を定義または記述するアクセスコント
ロールエントリ(ACE)を含めることができます。ACL は、ゼロ個(すべてのユーザーにアクセスを許可す
る)または複数個の ACE で構成することができ、各 ACE によって特定のアクセス権限がユーザー単位または
グループ単位で定義されます。
メモ: ACE リストが空(つまり、含まれているエントリがゼロ個)の場合、すべてのアクセス要求が許可
されることになります。
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Dell DR4100 ユーザーガイド

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