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Flash Accel Installation and Administration Guide : Viewing Flash Accel performance statistics

Viewing Flash Accel performance statistics
You can view metrics (also called performance statistics) to understand how Flash Accel caching is increasing the performance for your storage system. This section describes the performance statistics you can view and how to customize reports so you can view the statistics for a virtual machine, a specific virtual machine disk, and a selected period of time.
You should wait several minutes after initially enabling the cache before you begin to track performance statistics so that the cache is fully warmed. “Warming” the cache means that the cache has been populated with data based on client read and write activity. The amount of optimum wait time varies depending on the working set size of the application data and I/O access rate.
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Flash Accel metrics
Specifying cache metrics collection for virtual machines and disks
Clearing cache metrics from a virtual machine
Viewing current cache performance for a virtual machine
Viewing historical cache performance for a virtual machine
Viewing historical cache performance for many virtual machines


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