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Overview

There are six official RAID levels (RAID 0 through RAID 5.) PERC 3 supports RAID levels 0, 1, 5, 10, and 50. The RAID levels that PERC 3 supports are shown in Table 3-1.

Tab l e 3 - 1 . R A I D Le v el s

RAID

Type

Level

 

 

 

0

Standard

 

 

1

Standard

 

 

5

Standard

 

 

1+0

Combination of RAID 0 and RAID 1

 

 

5+0

Combination of RAID 0 and RAID 5

 

 

PERC 3 also supports independent drives (configured as RAID 0.)

Selecting a RAID Level

To ensure the best performance, you should select the optimal RAID level when you create a system drive. The optimal RAID level for your disk array depends on a number of factors:

The number of physical drives in the disk array

The capacity of the physical drives in the array

The need for data redundancy

The disk performance requirements

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RAID Levels

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Image 44
Dell manual Overview, Selecting a RAID Level, Perc 3 also supports independent drives configured as RAID