Change SDRS – VM affinity – I/O metric – Space threshold by Cluster Script

06/19/2016

Goal – For a set of Storage Clusters (you provide via a text file); you want to these three settings changed.

Default VM affinity = un-checked aka Do not keep VMDKs together by default
I/O metric inclusion = un-checked aka I/O metrics for Storage DRS recommendations are disabled
Space threshold = 75% aka utilized space per datastore

 # Found 6/19/16 http://vmscribble.com/powercli/change-sdrs-vm-affinity-io-metric-space-threshold-by-cluster-script # Add the PowerCLI snapin to PowerShell Add-PSsnapin VMware.VimAutomation.Core -ErrorAction SilentlyContinue # thanks http://frankdenneman.nl/2012/02/21/impact-of-intra-vm-affinity-rules-on-storage-drs/ function Set-DatastoreClusterDefaultIntraVmAffinity{ param( [CmdletBinding()] [parameter(Position = 0, Mandatory = $true, ValueFromPipeline = $true)] [PSObject]$DSC, [Switch]$Enabled ) process{ $SRMan = Get-View StorageResourceManager if($DSC.GetType().Name -eq "string"){ $DSC = Get-DatastoreCluster -Name $DSC | Get-View } elseif($DSC.GetType().Name -eq "DatastoreClusterImpl"){ $DSC = Get-DatastoreCluster -Name $DSC.Name | Get-View } $spec = New-Object VMware.Vim.StorageDrsConfigSpec $spec.podConfigSpec = New-Object VMware.Vim.StorageDrsPodConfigSpec $spec.podConfigSpec.DefaultIntraVmAffinity = $Enabled $SRMan.ConfigureStorageDrsForPod($DSC.MoRef, $spec, $true) } } # Set Variables $vCenter = Read-Host "Enter the FQDN of the vCenter" $listofclusters = Read-Host "Enter the path to the list of storage clusters ex. c:scriptsclusters.txt" $clusName = Get-Content -path $listofclusters # Connect to your vCenter Connect-VIServer $vCenter # Default VM affinity = un-checked Get-DatastoreCluster $clusName | Set-DatastoreClusterDefaultIntraVmAffinity # I/O metric inclusion = un-checked / Space threshold = 75% Get-DatastoreCluster $clusName| Set-DatastoreCluster -IOLoadBalanceEnabled $false | Set-DatastoreCluster -SpaceUtilization 75 -Confirm:$false # Disconnect from the vCenter Disconnect-VIServer $vCenter -Confirm:$false

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# Found 6/19/16 http://vmscribble.com/powercli/change-sdrs-vm-affinity-io-metric-space-threshold-by-cluster-script

# Add the PowerCLI snapin to PowerShell

Add-PSsnapin VMware.VimAutomation.Core-ErrorAction SilentlyContinue

# thanks http://frankdenneman.nl/2012/02/21/impact-of-intra-vm-affinity-rules-on-storage-drs/

functionSet-DatastoreClusterDefaultIntraVmAffinity{

param(

[CmdletBinding()]

[parameter(Position=0,Mandatory=$true,ValueFromPipeline=$true)]

[PSObject]$DSC,

[Switch]$Enabled

)

process{

$SRMan=Get-View StorageResourceManager

if($DSC.GetType().Name-eq"string"){

$DSC=Get-DatastoreCluster-Name$DSC|Get-View

}

elseif($DSC.GetType().Name-eq"DatastoreClusterImpl"){

$DSC=Get-DatastoreCluster-Name$DSC.Name|Get-View

}

$spec=New-ObjectVMware.Vim.StorageDrsConfigSpec

$spec.podConfigSpec=New-ObjectVMware.Vim.StorageDrsPodConfigSpec

$spec.podConfigSpec.DefaultIntraVmAffinity=$Enabled

$SRMan.ConfigureStorageDrsForPod($DSC.MoRef,$spec,$true)

}

# Set Variables

$vCenter=Read-Host"Enter the FQDN of the vCenter"

$listofclusters=Read-Host"Enter the path to the list of storage clusters ex. c:scriptsclusters.txt"

$clusName=Get-Content-path$listofclusters

# Connect to your vCenter

Connect-VIServer$vCenter

# Default VM affinity = un-checked

Get-DatastoreCluster$clusName|Set-DatastoreClusterDefaultIntraVmAffinity

# I/O metric inclusion = un-checked / Space threshold = 75%

Get-DatastoreCluster$clusName|Set-DatastoreCluster-IOLoadBalanceEnabled$false|Set-DatastoreCluster-SpaceUtilization75-Confirm:$false

# Disconnect from the vCenter

Disconnect-VIServer$vCenter-Confirm:$false