Monitoring And Comparing Multiple Clusters - HP StorageWorks P4000 User Manual

Statistic
Average I/O Size
Queue Depth Reads
Queue Depth Writes
Queue Depth Total
IO Latency Reads
IO Latency Writes
IO Latency Total
Cache Hits Reads
CPU Utilization
Memory Utilization
Network Utilization
Network Bytes Read
Network Bytes Write
Network Bytes Total
Storage Server Total
Latency

Monitoring and comparing multiple clusters

You can open the Performance Monitor for a cluster in a separate window. This lets you monitor and
compare multiple clusters at the same time. You can open one window per cluster and rearrange the
windows to suit your needs.
1. From the Performance Monitor window, right-click anywhere, and select Open in Window.
The Performance Monitor window opens as a separate window.
Use the Performance Monitor Tasks menu to change the window settings.
2. When you no longer need the separate window, click Close.
280 Monitoring performance
Definition
Average read and write transfer size for the sample
interval.
Number of outstanding read requests.
Number of outstanding write requests.
Number of outstanding read and write requests.
Average time, in milliseconds, to service read re-
quests.
Average time, in milliseconds, to service write re-
quests.
Average time, in milliseconds, to service read and
write requests.
Percent of reads served from cache for the sample
interval.
Percent of processor used on this storage system
for the sample interval.
Percent of total memory used on this storage system
for the sample interval.
Percent of bidirectional network capacity used on
this network interface on this storage system for the
sample interval.
Bytes read from the network for the sample interval.
Bytes written to the network for the sample interval.
Bytes read and written over the network for the
sample interval.
Average time, in milliseconds, for the RAID control-
ler to service read and write requests.
Volume
or
Cluster NSM
Snap-
shot
X X X
X X -
X X -
X X X
X X X
X X X
X X X
X X -
- - X
- - X
- - X
- - X
- - X
- - X
- - X