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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.