VMware Stats Oneliner

Today’s oneliner is a nifty little function that reports the average CPU and Memory usage for one or more of your VMs, calculated over the last x hours:

function Get-VMStat
{
param( $VM,[Int32]$Hours = 1 )
 $VM | Sort Name |
 Select Name, @{N=”CPU”;E={[Math]::Round((($_ |
 Get-Stat -Stat cpu.usage.average -Start (Get-Date).AddHours(-$Hours) -IntervalMins 5 -MaxSamples ($Hours*12) |
 Measure-Object Value -Average).Average),2)}}, @{N=”MEM”;E={[Math]::Round((($_ |
 Get-Stat -Stat mem.usage.average -Start (Get-Date).AddHours(-$Hours) -IntervalMins 5 -MaxSamples ($Hours*12) |
 Measure-Object Value -Average).Average),2)}}
}

A great way to use it is like this:

Get-VMStat (Get-VM) -Hours 4 | Where {$_.CPU -gt 50 -or $_.MEM -gt 75}

I’m sure you can figure out what that does. Be the first to give the correct answer in the comments to win everlasting glory! (or at least until the next oneliner…)

Enjoy!