Raid Levels - LSI MegaRAID Express 500 Hardware Manual

3

RAID Levels

There are six official RAID levels (RAID 0 through RAID 5). MegaRAID Express 500
supports RAID levels 0, 1, 3, and 5. LSI Logic has designed three additional RAID levels
(10, 30, and 50) that provide additional benefits. The RAID levels that MegaRAID
Express 500 supports are:
RAID Level
Select 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 drives in the disk array
•
the capacity of the drives in the array
•
the need for data redundancy
•
the disk performance requirements
Selecting a RAID Level The factors you need to consider when selecting a RAID level are listed on the
next page.
Type
0 Standard
1 Standard
3 Standard
5 Standard
10 MegaRAID Express 500 only
30 MegaRAID Express 500 only
50 MegaRAID Express 500 only
turn to
page 19
page 20
page 21
page 23
page 24
page 25
page 26
Chapter 3 RAID Levels 17