HP StorageWorks P9000 Performance Advisor Software v5.4 User Guide (T1789-96328, April 2012)

• The performance of a component drops below the set threshold limit.

The current value of the component is displayed under Value in the Alarms History table. Click the

corresponding link to view the performance value when the component crossed the threshold level or

dropped below the threshold level. For a component that has crossed the threshold limit, the

performance graph includes the following:

• Performance value when the component crossed or dropped below the threshold level.

• Includes data collected 1 hour prior to the component crossing or dropping below the threshold

level.

• Continues to show data collected upto 1 hour after the component crossed or dropped below the

threshold level (if performance data is available).

For a component that has dropped below the threshold limit, the performance graph includes the

following:

• Performance value when the component dropped below the threshold level.

• Includes data collected 1 hour prior to the component dropping below the threshold level.

• Continues to show data collected up to 1 hour after the component dropped below the threshold

level (if performance data is available).

The data available displays the progress trend of the component. The performance value displayed

under Value is in sync with the time displayed under Time Updated. It implies that P9000 Performance

Advisor retrieves the performance value for the time displayed under Time Updated. The performance

value is updated till the time the component's performance rises or drops below the set threshold level.

Once the performance value rises or drops below the threshold, a new record is posted in the Alarms

History table and a new graph is generated as, and when P9000 Performance Advisor retrieves the

latest performance value.

The performance graph also displays the Dispatch Threshold value that is the threshold value for which

an alarm was configured to be dispatched. The Dispatch Threshold value is displayed for only one

component and metric combination. It is disabled if you choose multiple components and metrics.

The Dispatch Threshold value acts like a watermark and helps you to identify the maximum threshold

limit that was set and the current performance value of the component. Appropriate legends are

displayed to differentiate the component current value from the Dispatch Threshold value. In the above

image, the green line signifies the Dispatch Threshold value. After the performance graphs are plotted,

use the following chart options in the Chart Work Area. In addition, resize and rearrange the chart

windows in the Chart Work Area. For more information on using the chart options, see “Plotting

charts” on page 262.