Fault isolation example, Monitoring volumes, Most active volumes examples – HP LeftHand P4000 SAN Solutions User Manual
Page 214
Figure 99 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.
Figure 100 Example showing fault isolation
Monitoring volumes
The Performance Monitor displays the following information about your volumes:
•
Most active volumes
•
Activity generated by a specific server
Most active volumes examples
This example shows two volumes (DB1 and Log1) and compares their total IOPS. You can see that
Log1 averages about 2 times the IOPS of DB1. This might be helpful if you want to know which
volume is busier.
214
Monitoring performance