HP Array Controller HSG V8.7 Software - Manual (Page 95)

Creating Storagesets 3–17
n High read request rates
n Inquiry-type transaction processing
n RAIDsets are not particularly well-suited for the following:
n Write-intensive applications
n Applications that require high data transfer capacity
n High-speed data collection
n Database applications in which fields are continually updated
n Transaction processing
Using Striped Mirrorsets for Highest Performance and Availability
As illustrated in Figure 3–8, striped mirrorsets are simply stripesets
whose members are mirrorsets. Consequently, this kind of storageset
combines the performance of striping with the reliability of mirroring.
The result is a storageset with very high I/O performance and high data
availability.
Figure 3–8 Striping and Mirroring in the Same Storageset
The failure of a single disk drive has no effect on this storageset’s
ability to deliver data to the host and, under normal circumstances, it
has very little effect on performance. Because striped mirrorsets do not
Disk 10000
CXO5508A
Disk 20000 Disk 30000
Disk 10100 Disk 20100 Disk 30100
Mirrorset1 Mirrorset2 Mirrorset3
Stripeset
A B C
A' B' C'