To display the dialog for setting the monitoring state, click the target device in the SAN view of the resource view, and then select [Device] - [Performance management] from the menu or right-click [Performance management] from the pop-up menu.
Figure 7.2 ETERNUS disk storage system performance management settings window
Figure 7.3 Fibre Channel switch performance management settings window
In ETERNUS disk storage systems, enter the minimum and maximum values for the performance information securement target Logical Volume (LUN_V). Setting LUN can reduce the effect of obtaining performance information on disk areas where performance data is saved and reduce the load. Setting LUN prevents allocation of more space than necessary for Logical Volume. Consequently, the recommended entry for Logical Volume is the minimum value for obtaining performance data.
Information
Since performance information is obtained internally in units of 64 for Logical Volume, performance information in the neighboring area of the Logical Volume setting is also obtained.
For example, if a range of 70 to 80 is set for Logical Volume (LUN_V) on the screen, the information of Logical Volume between 64 and 127 is obtained internally.
Point
If the device configuration has changed, update the device configuration information maintained by the performance management functionality. For details about the update procedure, refer to "7.2.11 Updating configuration information".
