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Understanding RAID
In this appendix...
Understanding Drive Segments............................................................................................. 70
Nonredundant Arrays (RAID 0) ........................................................................................... 70
RAID 1 Arrays ........................................................................................................................ 71
RAID 1 Enhanced Arrays....................................................................................................... 71
RAID 10 Arrays ...................................................................................................................... 72
RAID 5 Arrays ........................................................................................................................ 73
RAID 5EE Arrays.................................................................................................................... 74
RAID 50 Arrays ...................................................................................................................... 75
RAID 6 Arrays ........................................................................................................................ 76
RAID 60 Arrays ...................................................................................................................... 76
Selecting the Best RAID Level................................................................................................ 77
When you create arrays (or logical drives), you can assign a RAID level to protect your data.
Each RAID level offers a unique combination of performance and redundancy. RAID levels
also vary by the number of disk drives they support.
This appendix describes the RAID levels supported by your Adaptec RAID controller, and
provides a basic overview of each to help you select the best level of protection for your data
storage.