Dell PowerVault ME5 Series Administrator's Guide

Collecting performance data

View performance metrics data for a specified period by choosing an option from the Timeframe drop-down list. Your selection determines your viewing window.

Live performance metrics show the current system performance within the last 15 minutes and are sampled every five seconds. The remaining options let you choose to display historical performance up to the last eight days and are sampled every five minutes.

The collection of metrics never stops, except in cases where the system resets. The list of metrics that are collected is defined for the system, and not an individual user. If one user redefines the metrics to track, all user sessions are affected.

Controller A retains all the metrics in memory regardless of whether you are logged in to the PowerVault Manager. If controller A is restarted, all metrics are lost. If controller B is restarted, metrics continue to be available.