Product guide

Identifying a storage array performance problem 69
Reporting on Your Datacenter
Figure 44 Symmetrix folder and a table of the Symmetrix configuration
The table displays the configuration between the host and the Symmetrix array,
including the array device (0x011) to which device c2t0d2s2 is connected.
Analyzing storage array disks
Having identified the disks and the array device (0x011) on the Symmetrix array that
host l82ar156 was using, the UNIX administrator now analyzes the disks to ensure
that the host accessed them at 9 A.M. and 6 P.M. on this day.
To complete this task, the UNIX administrator:
1. In the middle Metrics pane, selects both disks.
2. In the bottom Metrics pane, selects read commands per sec to view the number of
read commands 0x011 made (per second) to the disks.
3. Clicks the Graph Per Metric () button.
A graph of the two disks appears showing that host l82ar156 did in fact access
these disks at 9 A.M. and 6 P.M. Figure 45 on page 70.