HP Surestore Disk Array 12h HP SureStore E Disk Array FC60 - (English) Advance - Page 57
RAID Level Comparisons, Product Description, RAID Level, Disk Striping, Mirroring, Parity
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Product Description RAID Level Comparisons To help you decide which RAID level to select for a LUN, the following tables compare the characteristics for the supported RAID levels. Where appropriate, the relative strengths and weakness of each RAID level are noted. Note RAID 3 is supported on Windows NT and Windows 2000 only. Table 1 RAID Level Comparison: Data Redundancy Characteristics RAID Level Disk Striping Mirroring Parity Handle multiple disk failures? RAID 0 Yes RAID 1 No RAID 0/1 Yes RAID 3 Yes RAID 5 Yes No No No. RAID 0 offers no data redundancy or protection against disk failure. RAID 0 should only be used for non- critical data. The failure of a single disk in a RAID 0 LUN will result in the loss of all data on the LUN. Yes No No Yes No Yes, providing both disks in a mirrored pair do not fail. No Yes No No Yes No Disk Array High Availability Features 57
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