Public/New-UnitySnap.ps1
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Function New-UnitySnap { <# .SYNOPSIS Creates a new snapshot. .DESCRIPTION Creates a new snapshot. Creating a snapshot creates a new point-in-time view of a block or file resource associated with the point-in-time at which the snapshot was taken. Immediately after being created, a snapshot consumes almost no space for the pool as it still shares all of its blocks with the primary block or file resource. However as new data is written to the parent resource, redirects occur as discussed previously, and the snapshot begins to consume pool space that is not also associated with the current production version of the parent resource. Once a snapshot is created, it is available to perform snapshot operations on such as restoring, copying, attaching/detaching, or deleting. 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 storageRessouce Storage resource ID or object. .PARAMETER Name Name for the new snapshot. .PARAMETER Description Description for new snapshot. .PARAMETER isAutoDelete Auto delete policy for new snapshot. .PARAMETER retentionDuration How long (in seconds) to keep the snapshot (Can be specified only if auto delete is set to false). .PARAMETER isReadOnly Indicates if the new snapshot should be read-only. .PARAMETER filesystemAccessType Indicates if the new snapshot should be created with checkpoint or protocol type access (file system or VMware NFS datastore snapshots only). .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-UnitySnap -StorageResource 'res_41' -Name 'snap01' Create snap named 'snap01' from sorage resource ID 'res_41' .EXAMPLE Get-UnityVMwareNFS -Name 'VOLUME01' | New-UnitySnap Create a snapshot of the VMware NFS volume. #> [CmdletBinding(SupportsShouldProcess = $True,ConfirmImpact = 'High')] Param ( #Default Parameters [Parameter(Mandatory = $false,HelpMessage = 'EMC Unity Session')] $session = ($global:DefaultUnitySession | where-object {$_.IsConnected -eq $true}), #UnitySnap [Parameter(Mandatory = $true,ValueFromPipeline=$True,ValueFromPipelinebyPropertyName=$True,HelpMessage = 'Storage resource ID or object.')] [Object[]]$storageResource, [Parameter(Mandatory = $false,HelpMessage = 'Name for the new snapshot')] [String]$name, [Parameter(Mandatory = $false,HelpMessage = 'Description for new snapshot')] [String]$Description, [Parameter(Mandatory = $false,HelpMessage = 'Auto delete policy for new snapshot')] [bool]$isAutoDelete, [Parameter(Mandatory = $false,HelpMessage = 'How long to keep the snapshot (Can be specified only if auto delete is set to false).')] [uint64]$retentionDuration, [Parameter(Mandatory = $false,HelpMessage = 'Indicates if the new snapshot should be read-only.')] [bool]$isReadOnly, [Parameter(Mandatory = $false,HelpMessage = 'Indicates if the new snapshot should be created with checkpoint or protocol type access (file system or VMware NFS datastore snapshots only)')] [FilesystemSnapAccessTypeEnum]$filesystemAccessType ) Begin { Write-Debug -Message "[$($MyInvocation.MyCommand)] Executing function" ## Variables $URI = '/api/types/snap/instances' $Type = 'snap' $StatusCode = 201 } Process { Foreach ($sess in $session) { Write-Debug -Message "Processing Session: $($sess.Server) with SessionId: $($sess.SessionId)" Foreach ($sr in $storageResource) { # Determine input and convert to object if necessary Write-Verbose "Input object type is $($sr.GetType().Name)" Switch ($sr.GetType().Name) { "UnityFilesystem" { $ObjectID = $sr.StorageResource.id } "UnityLUN" { $ObjectID = $sr.StorageResource.id } "String" { If ($Object = Get-UnityStorageResource -Session $Sess -ID $sr -ErrorAction SilentlyContinue) { $ObjectID = $Object.id } else { Throw "This Storage Resource does not exist" } } } #### REQUEST BODY # Creation of the body hash $body = @{} $body["storageResource"] = @{} $storageResourceParameter = @{} $storageResourceParameter["id"] = $ObjectID $body["storageResource"] = $storageResourceParameter If ($PSBoundParameters.ContainsKey('name')) { $body["name"] = $name } If ($PSBoundParameters.ContainsKey('description')) { $body["description"] = $description } If ($PSBoundParameters.ContainsKey('isAutoDelete')) { $body["isAutoDelete"] = $isAutoDelete } If ($PSBoundParameters.ContainsKey('retentionDuration')) { $body["retentionDuration"] = $retentionDuration } If ($PSBoundParameters.ContainsKey('isReadOnly')) { $body["isReadOnly"] = $isReadOnly } If ($PSBoundParameters.ContainsKey('filesystemAccessType')) { $body["filesystemAccessType"] = $filesystemAccessType } ####### 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 on storage resource ID $ObjectID")) { $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 Write-Verbose "$Type with the ID $($results.id) has been created" Get-UnitySnap -Session $Sess -ID $results.id } # End If ($request.StatusCode -eq $StatusCode) } # End If ($Sess.TestConnection()) } # End Foreach } # End Foreach ($sess in $session) } # End Process } # End Function |