Executing following script
$vmName = "VM*"
$stat = "datastore.totalReadLatency.average","datastore.totalWriteLatency.average",
"datastore.numberReadAveraged.average","datastore.numberWriteAveraged.average"
$entity = Get-VM -Name $vmName
$start = (Get-Date).AddHours(-1)
$dsTab = @{}
Get-Datastore | Where {$_.Type -eq "VMFS"} | %{
$key = $_.ExtensionData.Info.Vmfs.Uuid
if(!$dsTab.ContainsKey($key)){
$dsTab.Add($key,$_.Name)
}
else{
"Datastore $($_.Name) with UUID $key already in hash table"
}
}
Get-Stat -Entity $entity -Stat $stat -Start $start -ErrorAction SilentlyContinue |
Group-Object -Property {$_.Entity.Name} | %{
$vmName = $_.Values[0]
$VMReadLatency = $_.Group |
where {$_.MetricId -eq "datastore.totalReadLatency.average"} |
Measure-Object -Property Value -Average |
Select -ExpandProperty Average
$VMWriteLatency = $_.Group |
where {$_.MetricId -eq "datastore.totalWriteLatency.average"} |
Measure-Object -Property Value -Average |
Select -ExpandProperty Average
$VMReadIOPSAverage = $_.Group |
where {$_.MetricId -eq "datastore.numberReadAveraged.average"} |
Measure-Object -Property Value -Average |
Select -ExpandProperty Average
$VMWriteIOPSAverage = $_.Group |
where {$_.MetricId -eq "datastore.numberWriteAveraged.average"} |
Measure-Object -Property Value -Average |
Select -ExpandProperty Average
$_.Group | Group-Object -Property Instance | %{
New-Object PSObject -Property @{
VM = $vmName
Host = $_.Group[0].Entity.Host.Name
Datastore = $dsTab[$($_.Values[0])]
Start = $start
DSReadLatencyAvg = [math]::Round(($_.Group |
where {$_.MetricId -eq "datastore.totalReadLatency.average"} |
Measure-Object -Property Value -Average |
Select -ExpandProperty Average),2)
DSWriteLatencyAvg = [math]::Round(($_.Group |
where {$_.MetricId -eq "datastore.totalWriteLatency.average"} |
Measure-Object -Property Value -Average |
Select -ExpandProperty Average),2)
VMReadLatencyAvg = [math]::Round($VMReadLatency,2)
VMWriteLatencyAvg = [math]::Round($VMWriteLatency,2)
VMReadIOPSAvg = [math]::Round($VMReadIOPSAverage,2)
VMWriteIOPSAvg = [math]::Round($VMWriteIOPSAverage,2)
}
}
} | Export-Csv c:\report.csv -NoTypeInformation -UseCulture
Getting error message only. no output
