Public/New-UnityLUN.ps1

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Function New-UnityLUN {

  <#
      .SYNOPSIS
      Creates a Unity block LUN.
      .DESCRIPTION
      Creates a Unity block LUN.
      You need to have an active session with the array.
      .NOTES
      Written by Erwan Quelin under MIT licence - https://github.com/equelin/Unity-Powershell/blob/master/LICENSE
      .LINK
      https://github.com/equelin/Unity-Powershell
      .PARAMETER Session
      Specify an UnitySession Object.
      .PARAMETER Name
      Name of the LUN unique to the system.
      .PARAMETER Pool
      Pool ID
      .PARAMETER Description
      Description of the LUN.
      .PARAMETER Size
      LUN Size.
      .PARAMETER fastVPParameters
      FAST VP settings for the storage resource
      .PARAMETER isCompressionEnabled
      Indicates whether to enable inline compression for the LUN. Default is True on compatible arrays
      .PARAMETER isThinEnabled
      Is Thin enabled on LUN ? (Default is true)
      .PARAMETER host
      List of host to grant access to LUN.
      .PARAMETER accessMask
      Host access mask. Might be:
      - NoAccess: No access.
      - Production: Access to production LUNs only.
      - Snapshot: Access to LUN snapshots only.
      - Both: Access to both production LUNs and their snapshots.
      .PARAMETER snapSchedule
      Snapshot schedule settings for the LUN, as defined by the snapScheduleParameters.
      .PARAMETER isSnapSchedulePaused
      Indicates whether the assigned snapshot schedule is paused.
      .PARAMETER Confirm
      If the value is $true, indicates that the cmdlet asks for confirmation before running. If the value is $false, the cmdlet runs without asking for user confirmation.
      .PARAMETER WhatIf
      Indicate that the cmdlet is run only to display the changes that would be made and actually no objects are modified.
      .EXAMPLE
      New-UnityLUN -Name 'DATASTORE01' -Pool 'pool_1' -Size 10GB -host 'Host_12' -accessMask 'Production'

      Create LUN named 'LUN01' on pool 'pool_1' and with a size of '10GB', grant production access to 'Host_12'
  #>


  [CmdletBinding(SupportsShouldProcess = $True,ConfirmImpact = 'High')]
    Param (
    [Parameter(Mandatory = $false,HelpMessage = 'EMC Unity Session')]
    $session = ($global:DefaultUnitySession | where-object {$_.IsConnected -eq $true}),
    [Parameter(Mandatory = $true,Position = 0,ValueFromPipeline=$True,ValueFromPipelinebyPropertyName=$True,HelpMessage = 'LUN Name')]
    [String[]]$Name,
    [Parameter(Mandatory = $false,HelpMessage = 'LUN Description')]
    [String]$Description,

    # lunParameters
    [Parameter(Mandatory = $true,HelpMessage = 'LUN Pool ID')]
    [String]$Pool,
    [Parameter(Mandatory = $true,HelpMessage = 'LUN Size in Bytes')]
    [uint64]$Size,
    [Parameter(Mandatory = $false,HelpMessage = 'Host to grant access to LUN')]
    [String[]]$host,
    [Parameter(Mandatory = $false,HelpMessage = 'Host access mask')]
    [HostLUNAccessEnum]$accessMask = 'Production',
    [Parameter(Mandatory = $false,HelpMessage = 'Is Thin enabled on LUN ? (Default is true)')]
    [bool]$isThinEnabled = $true,
    [Parameter(Mandatory = $false,HelpMessage = 'FAST VP settings for the storage resource')]
    [TieringPolicyEnum]$fastVPParameters,
    [Parameter(Mandatory = $false,HelpMessage = 'Indicates whether to enable inline compression for the LUN. Default is True')]
    [bool]$isCompressionEnabled,

    # snapScheduleParameters
    [Parameter(Mandatory = $false,HelpMessage = 'ID of a protection schedule to apply to the storage resource')]
    [String]$snapSchedule,
    [Parameter(Mandatory = $false,HelpMessage = 'Is assigned snapshot schedule is paused ? (Default is false)')]
    [bool]$isSnapSchedulePaused = $false
  )

  Begin {
    Write-Debug -Message "[$($MyInvocation.MyCommand)] Executing function"

    ## Variables
    $URI = '/api/types/storageResource/action/createLun'
    $Type = 'LUN'
    $StatusCode = 200
  }

  Process {
    Foreach ($sess in $session) {

      Write-Debug -Message "Processing Session: $($sess.Server) with SessionId: $($sess.SessionId)"

      Foreach ($n in $Name) {

        #### REQUEST BODY

        # Creation of the body hash
        $body = @{}

        # Name parameter
        $body["name"] = "$($n)"

        # Domain parameter
        If ($Description) {
              $body["description"] = "$($Description)"
        }

        # lunParameters parameter
        $body["lunParameters"] = @{}
        $lunParameters = @{}
        $poolParameters = @{}

        $poolParameters["id"] = "$($Pool)"
        $lunParameters["pool"] = $poolParameters
        $lunParameters["size"] = $($Size)

        If ($PSBoundParameters.ContainsKey('fastVPParameters')) {
          $lunParameters["fastVPParameters"] = @{}
          $fastVPParam = @{}
          $fastVPParam['tieringPolicy'] = $fastVPParameters
          $lunParameters["fastVPParameters"] = $fastVPParam
        }

        If ($PSBoundParameters.ContainsKey('isCompressionEnabled')) {
          $lunParameters["isCompressionEnabled"] = $isCompressionEnabled
        } else {
          $lunParameters["isCompressionEnabled"] = Test-CompressionUnsupported -Session $Sess -Pool $Pool
        }

        If ($PSBoundParameters.ContainsKey('host')) {
        
          $lunParameters["hostAccess"] = @()
          $hostAccess = @()

          foreach ($h in $host) {
            $blockHostAccessParam = @{}
              $blockHostAccessParam['host'] = @{}
                $HostParam = @{}
                $HostParam['id'] = $h
              $blockHostAccessParam['host'] = $HostParam
              $blockHostAccessParam['accessMask'] = $accessMask
            $hostAccess += $blockHostAccessParam
          }

          $lunParameters["hostAccess"] = $hostAccess
    
        }

        $body["lunParameters"] = $lunParameters

        #snapScheduleParameters
        If ($snapSchedule) {
          $body["snapScheduleParameters"] = @{}
          $snapScheduleParameters = @{}
          $snapScheduleParam = @{}
          $snapScheduleParam["id"] ="$($snapSchedule)"
          $snapScheduleParameters["snapSchedule"] = $snapScheduleParam
          $snapScheduleParameters["isSnapSchedulePaused"]= "$($isSnapSchedulePaused)"
          $body["snapScheduleParameters"] = $snapScheduleParameters
        }

        # isThinEnabled
        If ($PSBoundParameters.ContainsKey('isThinEnabled')) {
          $lunParameters["isThinEnabled"] = $isThinEnabled
        }

        $body["lunParameters"] = $lunParameters

        ####### END BODY - Do not edit beyond this line

        #Show $body in verbose message
        $Json = $body | ConvertTo-Json -Depth 10
        Write-Verbose $Json  

        If ($Sess.TestConnection()) {

          ##Building the URL
          $URL = 'https://'+$sess.Server+$URI
          Write-Verbose "URL: $URL"

          #Sending the request
          If ($pscmdlet.ShouldProcess($Sess.Name,"Create $Type $n")) {
            $request = Send-UnityRequest -uri $URL -Session $Sess -Method 'POST' -Body $Body
          }

          Write-Verbose "Request status code: $($request.StatusCode)"

          If ($request.StatusCode -eq $StatusCode) {

            #Formating the result. Converting it from JSON to a Powershell object
            $results = ($request.content | ConvertFrom-Json).content

            $Storageresource = Get-UnitystorageResource -session $Sess -ID $results.storageResource.id

            Write-Verbose "$Type with the ID $($Storageresource.luns.id) has been created"

            Get-UnityLUN -Session $Sess -ID $Storageresource.luns.id
          } # End If ($request.StatusCode -eq $StatusCode)
        } # End If ($Sess.TestConnection())
      } # End Foreach
    } # End Foreach ($sess in $session)
  } # End Process
} # End Function