Adaptec 2005S User Guide - Page 174
Selecting the Best RAID Level, RAID 0, Spanned Volume, RAID Volume
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Appendix D: Understanding RAID ● 173 Selecting the Best RAID Level Use the Table below to select the RAID levels that are most appropriate for the logical drives on your storage space, based on the number of available disk drives and your requirements for performance and reliability. RAID level RAID 0 RAID 1 RAID 1E RAID 10 RAID 5 RAID 5EE RAID 50 RAID 6 RAID 60 Spanned Volume RAID Volume Redundancy No Yes Yes Yes Yes Yes Yes Yes Yes No No Disk Drive Usage 100% 50% 50% 50% 67 - 94% 50 - 88% 67 - 94% 50 - 88% 50 - 88% 100% 50 - 100% Read Performance Write Performance Built-in Hot Spare No No No No No Yes No No No No No Minimum Disk Drives 1 2 3 4 3 4 6 4 8 2 4 Disk drive usage, read performance, and write performance depend on the number of drives in the logical drive. In general, the more drives, the better the performance.
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