Product guide

72 EMC Ionix ControlCenter 6.1: Taking Control of Your Datacenter
Reporting on Your Datacenter
Figure 47 Graph showing read misses between Symmetrix disks and cache
Analyzing a storage array system
To confirm the read misses, the UNIX administrator now analyzes the entire Symmetrix
array for the occurrence of destaged tracks (data moved from the cache back to the
disks).
To complete this task, the UNIX administrator:
1. In the top Metrics pane, under the Symmetrix folder, selects the System folder.
The Symmetrix array (000187400075) appears in the middle metrics pane.
2. In the middle Metrics pane, selects the Symmetrix array.
3. In the bottom Metrics pane, selects destaged tracks per sec to view the number of
data tracks that the array destaged.
A new graph appears showing that the Symmetrix destaged tracks of data during
9 A.M. and 6 P.M. Figure 48 on page 73.