Extending tiered storage spaces - Windows Server 2022

 As part of the work I have done in my homelab with tiered storage on Server 2022 storage spaces, here is a script I created that allows you to easily extend a tiered storage space, so you can expand your storage pool size when you add more disks or even replace your current disks with higher capacity ones

Drop this in a .ps1 file and watch it go:

#start

write-output "

=================================================================

Welcome to the EASYExtendTieredVD script.

By Luke Varley  - www.Phishandchips.dev

This script will allow you to easily extend a Tiered Storage Spaces

Virtual Disk when you add new a SSD or HDD

Read the comments in the script for instructions

#Created with knowlegde obtained from

nils.schimmelmann

#Credit: https://nils.schimmelmann.us/post/153541254987/intel-smart-response-technology-vs-windows-10

Joe Freeman

#Credit: https://github.com/freemansoft/win10-storage-spaces

=================================================================

"

# https://nils.schimmelmann.us/post/153541254987/intel-smart-response-technology-vs-windows-10

#check if elevation is required

if (-Not ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole([Security.Principal.WindowsBuiltInRole] 'Administrator')) {

    if ([int](Get-CimInstance -Class Win32_OperatingSystem | Select-Object -ExpandProperty BuildNumber) -ge 6000) {

     

     write-output "

    =================================================================  

    SCRIPT REQUIRES ELEVATION, PLEASE RUN FROM AN ADMINISTRATIVE

    POWERSHELL WINDOW. RUN AS ADMINISTRATOR.

    =================================================================

    "

    Pause

    Exit

         }

        }

  Pause

#start

#

#Number of columns in your VD is the number of disks you need to add before you can utilise the extra capacity of those disks

    #so if you have 3 columns, you wont be able to exend capacity of your VD until you add an extra 3 disks

        #OR you replace all disks in your storage tier with disks of a higher capacity e.g. 8TB - 4 x 2TB disks, replace each disk 1 by 1 to 4 x 4tb disks for 16TB capacity

#Tiers in the storage pool

#Find these by running get-StorageTier

$SSDTierName = "VMStoreHDDCacheVD-SSDTier-VMStoreHDD"

$HDDTierName = "VMStoreHDDCacheVD-HDDTier-VMStoreHDD"

#Override the default sizing here - useful if have two different size SSDs or HDDs - set to smallest of pair

#These must be Equal or smaller than the disk size available in that tier SSD and HDD

#SSD:cache  -    HDD:data

#set to $null to calculate the max size, not always working... better to manually specify a size

#set to $null the tier you dont want to extend, to extend both populate both with the apropriate value

$SSDTierSize = 508GB

$HDDTierSize = 7.22TB

#Drives cannot always be fully allocated - probably broken for drives < 10GB

#Dont change this

$UsableSpace = 0.99

#Set tier Resilency setting

$SSDTierResiliency = "Simple"

$HDDTierResiliency = "Simple"

#Calculate tier sizes within this storage pool

#Can override by setting sizes at top

if ($SSDTierSize -eq $null){

    $SSDTierSize = (Get-StorageTierSupportedSize -FriendlyName $SSDTierName -ResiliencySettingName $SSDTierResiliency).TierSizeMax

    $SSDTierSize = [int64]($SSDTierSize * $UsableSpace)

}

if ($HDDTierSize -eq $null){

    $HDDTierSize = (Get-StorageTierSupportedSize -FriendlyName $HDDTierName -ResiliencySettingName $HDDTierResiliency).TierSizeMax

    $HDDTierSize = [int64]($HDDTierSize * $UsableSpace)

}

Write-Output "TierSizes: ( $SSDTierSize , $HDDTierSize )"

$HDDTierSizeBytes = $HDDTierSize / 1GB

$HDDTierSizeGB = "$HDDTierSizeBytes" + "GB"

$SSDTierSizeBytes = $SSDTierSize / 1GB

$SSDTierSizeGB = "$SSDTierSizeBytes" + "GB"

#Extend two tiers in the Storage Pool created. One for SSD disks and one for HDD disks

Write-Output "Extend $SSDTierName by:"

$SSDTierSizeGB

Resize-StorageTier -FriendlyName $SSDTierName -size $SSDTierSize

Write-Output "Extend $HDDTierName by:"

$HDDTierSizeGB

Resize-StorageTier -FriendlyName $HDDTierName -size $HDDTierSize

Write-Output "Operation complete"