About Raid Levels - Promise Technology FastTrak TX2000 User Manual

Ultra ata/133 raid card
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FastTrak TX2000™ Series User Manual

About RAID Levels

Striping (RAID 0)
Reads and writes sectors of data interleaved between multiple drives. When any disk member
fails, it affects the entire array. Performance is better than a single drive since the workload is
balanced between the array members. This array type is for high performance systems.
Identical drives are recommended for performance as well as data storage efficiency. The disk
array data capacity is equal to the number of drive members times the smallest member
capacity. For example, one 100 GB and three 120 GB drives will form a 400 GB (4 x 100 GB)
disk array.
Stripe Size
- a value can be set from 1KB to 1024KB sector size. The size can directly affect
performance. In the FastBuild BIOS, the "Desktop" default is 8KB while "Server" and "A/V
Editing" is 64KB.
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