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Chapter 2 RAID
This chapter describes the RAID features which 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". The RAID technology
allows more than one hard disk drive (HDD) to be handled collectively.
In actual, RAID can configure more than one HDDs as a single array (disk group) to
operate the HDDs effectively. This can bring higher performance than a single HDD of a
large capacity.
This disk array controller has a feature to divide a single disk group into several logical
drives (up to 40 virtual disks). The host computer recognizes these virtual disks as if it
were a single HDD. The host computer accesses to more than one HDD configuring a disk
group in parallel.
Some RAID levels can recover data from remaining data and parity by using rebuild
feature if an error occurs in a single HDD. This can provide high reliability for the system.
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Страница 25: ...5 4 各部の名称と機能 本製品の各部の名称を以下に説明いたします 本製品表面 3 1 5 2 4 6 本製品裏面 ...
Страница 124: ...104 When the adapter is selected on Adapter Selection the WebBIOS Top Menu appears ...
Страница 126: ...106 Click Next to see the detailed settings of this controller ...
Страница 136: ...116 Use this menu to define several physical drives PD as a disk group DG ...
Страница 157: ...137 59 Setting menu for VD 0 is displayed ...
Страница 165: ...145 ...