Specifications

4–9
Compaq HSG80 Array Controller ACS Version 8.4 Configuration and CLI Reference Guide
For a comprehensive discussion of RAID, refer to The RAIDBOOK—A Source Book
for Disk Array Technology.
Using Stripesets to Increase I/O Performance
Stripesets enhance I/O performance by spreading the data across multiple disk drives.
Each I/O request is broken into small segments called “chunks.” These chunks are
then “striped” across the disk drives in the storageset, thereby allowing several disk
drives to participate in one I/O request to handle several I/O requests simultaneously.
For example, in a three-member stripeset that contains disk drives 10000, 20000, and
30000, the first chunk of an I/O request is written to 10000, the second to 20000, the
third to 30000, the fourth to 10000, and so forth until all of the data has been written
to the drives.
Figure 4–3. Striping Lets Several Disk Drives Participate in Each I/O Request
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CXO5507A
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