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Chapter 2 RAID
This chapter describes the RAID features that the disk array controller supports.
1. Overview of RAID
1-1 What is RAID (Redundant Array of Inexpensive Disks)?
RAID is an abbreviation for "Redundant Array of Inexpensive Disks." RAID technology allows more than one
HDD to be handled collectively.
RAID configures multiple HDD
‟s as a single array (disk group) to operate the HDD‟s more effectively. This
can provide higher performance than a single, large capacity HDD.
This disk array controller has a feature to divide a single disk group into several logical drives. The host
computer recognizes these virtual disks as if they were a single HDD. The host computer accesses more
than one HDD when configuring a disk group in parallel.
Some RAID levels can recover data from remaining data and parity by using a rebuild feature if an error
occurs on a single HDD. This can provide high reliability for the system.
1-2 RAID Levels
The disk array controller supports the following RAID levels: RAID 0 and RAID 1. The number of HDD
‟s
required to create a disk group varies depending on the RAID level as shown in the table below:
RAID level
Number of required
HDD’s
Min.
Max.
RAID 0
1
2
RAID 1
2
2
Tips
For details of the RAID levels, see "2. RAID Levels" described later in this
chapter.
Содержание N8403-019
Страница 27: ...7 4 3 内部接続ケーブル 1本 4 4 ディスクアレイコントローラ取り付けネジ 3個 ...
Страница 40: ...20 8 バックプレーンボードを取り付けます 1 本体装置にハードディスクドライブが実装されている場合は 取り外します 2 フロントカバーの4箇所のネジを外します 3 フロントカバーを矢印方向に垂直に上げ取り外します ...
Страница 41: ...21 4 既存バックプレーンボードがある場合は 3箇所のネジを外し 既存バックプレーンボードを取 り外します 5 新規バックプレーンを 取り外した3箇所のネジを利用し取り付けます ...
Страница 42: ...22 6 フロントカバーを コネクタの勘合に気を付けながら取り付けます 7 フロントカバーの両サイドのネジを取り付けます ...
Страница 44: ...24 ケーブルを外す場合は ケーブルのロックピンを解除するため下図の場所を押しながら引き抜いて ください 10 リアカバーを取り付けます ...
Страница 106: ...86 7 Install the rear cover ...
Страница 111: ...91 When the adapter is selected in Adapter Selection the WebBIOS top menu appears ...
Страница 113: ...93 Click Next to see the detailed settings of this controller ...
Страница 124: ...104 Custom Configuration Use this menu to define several physical drives PD as a disk group DG ...
Страница 137: ...117 2 Select VD 0 already constructed in Virtual Drives 3 The setting menu for VD 0 is displayed ...