HP StoreVirtual 4000 Storage - Manual (Page 215)

Generally, the Performance Monitor can help you determine:
•
Current SAN activities
•
Workload characterization
•
Fault isolation
Current SAN activities example
This example shows that the Denver cluster is handling an average of more than 747 IOPS with
an average throughput of more than 6 million bytes per second and an average queue depth of
31.76.
Figure 93 Example showing overview of cluster activity
Workload characterization example
This example lets you analyze the workload generated by a server (ExchServer-1) including IOPS
reads, writes, and total and the average IO size.
Figure 94 Example showing volume’s type of workload
Fault isolation example
This example shows that the Denver-1 storage system (dotted line pegged at the top of the graph)
has a much higher IO read latency than the Denver-3 storage system. Such a large difference may
be due to a RAID rebuild on Denver-1. To improve the latency, you can lower the rebuild rate.
Introduction to using performance information 215