Cautions when using monitoring modes

• If Continuous mode is used, best practice is to collect monitoring information using the following execution modes:

• Auto execution mode

• Manual execution mode with collecting the periodic monitoring information by defining a script using CCI

If the Manual execution mode is used without scripts, the Continuous monitoring mode can be set. However, in this case, unexpected results can be calculated because the weighted average efficiency is calculated based on very different duration (short and long) periods information obtained in the past cycles.

• When the monitoring mode is set to Continuous, the frequency distributions are displayed for each pool and V-VOL calculated by using the monitor value on which the weighted calculation is done.

These calculated values are the predictive values for the next cycle after successfully relocating all pages. Therefore, these values can differ from an actual monitoring result when they appear.

In Performance Utilization of each tier, regardless of the type of the monitoring mode setting, the monitor values that were collected in the current cycle display.

If you switch the monitoring mode from Period to Continuous or from Continuous to Period, the current cycle's monitoring data that is being collected is not discarded. However, the data calculated by using past monitor cycle information on which the weighted calculation is done is reset.