MultisiteClusterDSC

0.4.0

DSCClassResources/ClusterSharedVolume/ClusterSharedVolume.psm1

[DscResource()]
class ClusterSharedVolume {
    [DscProperty(Key)]
    [string] $ClusterName

    [DscProperty(Mandatory=$false)]
    [String]$NodeName = $env:COMPUTERNAME

    [DscProperty(NotConfigurable)]
    [String]$StoragePoolName

    [DscProperty(Mandatory=$false)]
    [String]$CsvFriendlyName = "CSV"

    [DscProperty(Mandatory)]
    [int64]$CsvSize
    
    # Gets the resource's current state.
    [ClusterSharedVolume] Get() {
        $volume = Get-Volume -FriendlyName $this.CsvFriendlyName
        $this.StoragePoolName = (Get-StoragePool | Where-Object {$_.IsClustered -and $_.IsPrimordial -eq $false}).FriendlyName
        $this.CsvSize = $volume.Size / 1GB
        return $this
    }
    
    # Sets the desired state of the resource.
    [void] Set() {
        try {
            $storagePool = Get-StoragePool | Where-Object {$_.IsClustered -and $_.IsPrimordial -eq $false}
            $this.StoragePoolName = $storagePool.FriendlyName
        }
        catch {
            throw "Could not find eligable Storage Pool: $($error[0].exception.message)"
        }
        
        try {
            New-Volume -FriendlyName $this.CsvFriendlyName -FileSystem CSVFS_ReFS -StoragePoolFriendlyName $this.StoragePoolName -Size $this.CsvSize
        }
        catch {
            throw "Could not create Volume: $($error[0].exception.message)"
        }
    }
    
    # Tests if the resource is in the desired state.
    [bool] Test() {
        $volume = Get-Volume -FriendlyName $this.CsvFriendlyName -ErrorAction SilentlyContinue
        if ($volume) {
            return $true
        }
        else {
            return $false
        }
    }
}