Promise Technology TX4000 ユーザーズマニュアル
Chapter 5: Disk Array Concepts
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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.
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.
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 16KB to 256KB sector size. The size can
directly affect performance. In the FastBuild BIOS, the default is 64KB.
directly affect performance. In the FastBuild BIOS, the default is 64KB.
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Disk Drives
Data
Stripe