You can use the PowerCLI cmdlets to automate tasks for viewing and managing statistics for vSphere inventory objects.

You can modify the properties of a statistics interval and view statistics for a specified cluster.

Connect to a vSphere server.

1

Increase the amount of time for which statistics of the previous day are stored.

Set-StatInterval -Interval "past day" -StorageTimeSecs 700000
2

View the available memory metric types for the Cluster1 cluster.

$cluster = Get-Cluster Cluster1
$statTypes = Get-StatType -Entity $cluster -Interval "past day" -Name mem.*
3

View the cluster statistics collected for the day.

Get-Stat -Entity $cluster -Start ([System.DateTime]::Now.AddDays(-1)) -Finish ([System.DateTime]::Now) -Stat $statTypes