In this topic:
About historical performance monitoring
Disabling or enabling historical performance monitoring
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Historical performance monitoring is an automatic recording of key performance data over time.
Historical performance monitors have been created to record long-term the current state of the system and record historical performance data to allow the monitoring of historical resources for diagnostic purposes. Historical performance monitoring is required to display data for the System Health Performance Spotlight and Pool Allocation Estimation tools. Counters required for those tools are recorded when historical performance monitoring is enabled.
That historical data can also be used to assist administrators with performance optimization and configuration expansion. At this release, there is no graphical interface available to administrators in order to view the data. DataCore Technical Support has the ability to view the data in order to analyze it upon request and with customer approval.
This data is recorded in an independent local SQL database, which is installed with SANsymphony software, and requires 10 GB of free space. Counters that are key to performance analysis are preconfigured and no user action is needed to start recording. Historical recordings run silently without impact to system performance or other recordings such as performance recording or charge back data. Historical data is collected every 10 minutes and can be preserved for approximately one year.
Historical performance monitoring is enabled by default, and is required to display data for the System Health Performance Spotlight and Pool Allocation Estimation tools. Disabling this feature will disable those tools.
To enable or disable:
1 In the DataCore Servers Panel, right-click the server group and select View Details.
2 In the Settings tab, expand the Advanced Settings.
3 Select or clear the Historical Monitoring Enabled check box as appropriate.
4 Click Apply.