2. raid levels – NEC Disk Array Controller N8103-89 User Manual
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1-2. RAID Levels
The record mode enabling the RAID feature includes several levels. Among the levels, the
disk array controller supports the following levels; RAID 0, RAID 1, RAID 5, and RAID10.
The number of HDDs required to create a logical drive varies depending on the RAID level
as shown in the table below.
Number of required HDDs
RAID level
Min. Max.
RAID 0
1
4
RAID 1
2
2
RAID 5
3
4
RAID 10
4
4
Tips
For details of the RAID levels, see "2. RAID Levels" described later in this
chapter.