Find ESX hosts with high storage path latency

esx_io_path_latency.ps1

add-pssnapin vmware*

connect-viserver vcenter
$start = (get-date).AddMinutes(-60)
$metric = "storagePath.totalWriteLatency.average"
$report = @()


$vmhosts = Get-VMHost


$stats = Get-Stat -Realtime -Stat $metric -Entity $vmhosts -Start $start
$report = $stats | Group-Object -Property {$_.Entity.Name} | %{
	New-Object PSObject -Property @{
		Host = $_.Name
 		LatencyMax = ($_.Group | `
 			%{$_.Value} | `
 			Measure-Object -Maximum).Maximum
	}
}

$report | export-csv -NoTypeInformation -Path c:\temp\esx_pathlatency.csv

$report