topic Re: Need help from a Powershell expert on this snapmirror command in ONTAP Discussions

Need help from a Powershell expert on this snapmirror command

Northman — Mon, 21 Aug 2023 13:52:12 GMT

SYNTAX

Invoke-NcSnapmirrorInitialize [-DestinationCluster <String>] -DestinationVserver <String> -DestinationVolume <String> [-SourceCluster <String>] [-SourceVserver <String>] [-SourceVolume <String>] [-MaxTransferRat

e <Int64>] [-TransferPriority <String>] [-SourceSnapshot <String>] [-Passthru] [-IsAutoExpandEnabled <Boolean>] [-IsAdaptive <Boolean>] [-IsCatalogEnabled <Boolean>] [-Controller <NcController[]>] [-InformationA

ction <ActionPreference>] [-InformationVariable <String>] [-PipelineVariable <String>] [-ZapiRetryCount <Int32>] [<CommonParameters>]

I am connected to one of the nodes on the SNAPVAULT cluster (as well as the source and destination vservers):

PS H:\> Connect-NcController SNAPVAULT-i-svc01-01 -Credential (Get-Credential)

cmdlet Get-Credential at command pipeline position 1

Supply values for the following parameters:

Credential

Name Address Vserver Version

---- ------- ------- -------

SNAPVAULT-i-svc01-01 X.Y.63.205 NetApp Release 9.11.1P8: Fri Apr 07 00:02:50 UTC 2023

But, when running the command below, I get an error about wrong credentials. Anyone can explain why?

PS H:\> invoke-NCSnapmirrorInitialize -DestinationCluster X.Y.63.209 -DestinationVserver svm_cifs_filer_DD_PROD_SM_Test

-DestinationVolume Backup -SourceCluster X.Y.63.102 -SourceVserver svm_cifs_filer_DD_PROD:Backup -SourceVolume Backup -Controller SNAPVAULT-i-svc01-01

invoke-NCSnapmirrorInitialize : Incorrect credentials for SNAPVAULT-i-svc01-01.

At line:1 char:1

+ invoke-NCSnapmirrorInitialize -DestinationCluster X.Y.63.209 -Desti ...

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo : InvalidOperation: (SNAPVAULT-i-svc01-01:NcController) [Invoke-NcSnapmirrorInitialize], NaAuthException

+ FullyQualifiedErrorId : ApiException,DataONTAP.C.PowerShell.SDK.Cmdlets.Snapmirror.InvokeNcSnapmirrorInitialize

Here is what help -full describes about -Controller parameter:

-Controller <NcController[]>

A clustered Data ONTAP controller to receive this cmdlet, as embodied by an NcController object. This parameter is returned by the Connect-NcController cmdlet. If not specified, the value in the global var

iable CurrentNcController is used. In the latter case, if CurrentNcController contains a collection of NcController objects, this cmdlet is invoked on each controller in succession.

Required? false

Position? named

Default value

Accept pipeline input? true (ByValue, ByPropertyName)

Accept wildcard characters? False

Re: Need help from a Powershell expert on this snapmirror command

Sanaman — Wed, 23 Aug 2023 03:12:21 GMT

Are you connecting to source filer or destination (snapmirror)filer? SNapmirror commands are run on destination filer.

Re: Need help from a Powershell expert on this snapmirror command

Northman — Wed, 23 Aug 2023 06:22:07 GMT

I am running it from my admin desktop. The script specifies both source and destination. How can I run this script from the destination?

Re: Need help from a Powershell expert on this snapmirror command

Sanaman — Wed, 23 Aug 2023 06:55:58 GMT

Yes, you are running PS script from from admin/windows server. But, you will need to connect to the destination cluster .

Connect-NcController -Destination-Cluster

Connect-NcController <destination-cluster>
Scripts> Connect-NcController cluster1

Windows PowerShell Credential Request
Enter your credentials.
User: domain\user
Password for user domain\user: *************

Name Address Vserver Version
---- ------- ------- -------
cluster1 xx:xxx:xx:xxx.... NetApp Release 9.11.1P8: Fri Apr 07 00:02:50 UTC 2023

PS C:\Scripts> get-NcCluster

ClusterContact : support@mydomain.com
ClusterLocation : Domain Prod2
ClusterName : cluster1
ClusterSerialNumber :
ClusterUuid : xxxxxxxxxx....
NcController : cluster1

......

\Scripts> Get-NcSnapmirror

SourceLocation DestinationLocation Status MirrorState
-------------- ------------------- ------ -----------
svmnfsp01:svmnfsp01_prod_store1 svmnvp61:svmnfsp01_prod_store1_vault snapmirrored snapmirrored
svmnfst21:svmnfst21_non_prod_store1 svmnvp61:svmnfst21_non_prod_store1_vault snapmirrored snapmirrored
svmncifp01:DFS_GRP svmnvp61:svmncifp01_DFS_GRP_vault snapmirrored snapmirrored

......

Hope that helps.

Re: Need help from a Powershell expert on this snapmirror command

Northman — Wed, 23 Aug 2023 08:29:07 GMT

Yes, I was connected to the destination cluster as well. I have skipped doing this with just powershell commands. need to get this working with a Excel input-file. I am using the below script using a input-file, but it halts. Any ideas?

Script with errors (the variables have been defined using :$exelPath and $inputdata = Import-Excel -path $exelPath

PS H:\> foreach ($row in $inputData) {

>> $srcClusterIP = $row.'Source Cluster IP'

>> $srcSVM = $row.'Source SVM'

>> $srcVolume = $row.'Source Volume'

>> $dstClusterIP = $row.'Destination Cluster IP'

>> $dstSVM = $row.'Destination SVM'

>> $dstVolume = $row.'Destination Volume'

>> # Connect to source and destination clusters

>> Connect-NcController -Name $srcClusterIP

>> Connect-NcController -Name $dstClusterIP

>> # Create SnapMirror relationship

>> Initialize-NcSnapMirror -SourcePath $srcSVM:$srcVolume -DestinationPath $dstSVM:$dstVolume -Type XDP

>> # Start the initial transfer

>> Start-NcSnapMirrorInitialTransfer -SourcePath $srcSVM:$srcVolume -DestinationPath $dstSVM:$dstVolume

>> # Close the connection to clusters

>> Disconnect-NcController

>> }

At line:14 char:37

+ Initialize-NcSnapMirror -SourcePath $srcSVM:$srcVolume -DestinationPa ...

+ ~~~~~~~~

Variable reference is not valid. ':' was not followed by a valid variable name character. Consider using ${} to delimit the name.

At line:14 char:73

+ ... rror -SourcePath $srcSVM:$srcVolume -DestinationPath $dstSVM:$dstVolu ...

+ ~~~~~~~~

Variable reference is not valid. ':' was not followed by a valid variable name character. Consider using ${} to delimit the name.

At line:17 char:47

+ Start-NcSnapMirrorInitialTransfer -SourcePath $srcSVM:$srcVolume -Des ...

+ ~~~~~~~~

Variable reference is not valid. ':' was not followed by a valid variable name character. Consider using ${} to delimit the name.

At line:17 char:83

+ ... sfer -SourcePath $srcSVM:$srcVolume -DestinationPath $dstSVM:$dstVolu ...

+ ~~~~~~~~

Variable reference is not valid. ':' was not followed by a valid variable name character. Consider using ${} to delimit the name.

+ CategoryInfo : ParserError: (:) [], ParentContainsErrorRecordException

+ FullyQualifiedErrorId : InvalidVariableReferenceWithDrive

Re: Need help from a Powershell expert on this snapmirror command

Northman — Wed, 23 Aug 2023 10:01:08 GMT

got a round that error by adding the brackets as suggested, but ran into a new problem with wrong initialize-command. Currently testing with the : 'Invoke-NcSnapMirrorInitialize" command using the same Excel-file. Anyone knows the fastest way to setup scheduled snapmirror transfers after this for all the volumes? I assum e applying a schedule policy with a script to all the volumes?

Re: Need help from a Powershell expert on this snapmirror command

Northman — Wed, 23 Aug 2023 11:04:46 GMT

I then ran into a similar problem with the NcConnect command:

>> Invoke-NcSnapmirrorInitialize -DestinationCluster $dstClusterIP -DestinationVserver $dstSVM -DestinationVolume $dstVolume -SourceCluster $srcClusterIP -SourceVserver $srcSVM -SourceVolume $srcVolume -Controller “Dst IP”

>> # Updates must be done manually, or a schedule created and run with other command in ONTAP CLI or here in Poershell

>> }

Name Address Vserver Version

---- ------- ------- -------

“dst IP» «Dst IP» NetApp Release 9.11.1P8: Fri Apr 07 00:02:50 UTC 2023

«src IP» «src IP» NetApp Release 9.11.1P8: Fri Apr 07 00:02:50 UTC 2023

Invoke-NcSnapmirrorInitialize : Incorrect credentials for “dst-IP”

At line:14 char:1

+ Invoke-NcSnapmirrorInitialize -DestinationCluster $dstClusterIP -Dest ...

+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

+ CategoryInfo : InvalidOperation: (“Dst IP”:NcController) [Invoke-NcSnapmirrorInitialize], NaAuthException

+ FullyQualifiedErrorId : ApiException,DataONTAP.C.PowerShell.SDK.Cmdlets.Snapmirror.InvokeNcSnapmirrorInitialize

Re: Need help from a Powershell expert on this snapmirror command

TzwaynY — Wed, 18 Oct 2023 13:34:45 GMT

Acatually iam a bit confused by your question.

You need to connect to the Destination Cluster:

Connect-NcController -Name $DestinationClusterIP -Credentials (Get-Credentials)

After that you have to invoke your desired Snapmirror Relation. For example:

$SnapMirror = Get-NcSnapmirror -ZapiCall | Where-Object {$_.Status -eq "uninitilized"}

ForEach($Snapmirror_ in $Snapmirror){

try{

Invoke-NcSnapmirrorInitilize -DestinationVserver $Snapmirror_.DestinationVserver -DestinationVolume $Snapmirror_.DestinationVolume

}catch{

Write-Host $_.Exception.Message

}

Thats all you need. If you need any further help, feel free to ask, or if anything is unclear (or maybe I understood it wrong) reach back out to me.

best regards

Kai

Re: Need help from a Powershell expert on this snapmirror command

Northman — Thu, 19 Oct 2023 05:37:22 GMT

hello Kai, but I am connecting to both the destination and the source. See the post 23. august in the script. Is the error that I only should connect to the destination, perhaps?

Re: Need help from a Powershell expert on this snapmirror command

TzwaynY — Mon, 23 Oct 2023 11:17:29 GMT

Hi,

sorry for the late reply. Yes you need to be connected to the destination and nothing else.

Best regards

Kai

Re: Need help from a Powershell expert on this snapmirror command

Northman — Thu, 05 Dec 2024 15:45:36 GMT

Kai,

Started working on this again and no luck after 2 days. I need this to work with a Excel input-file. I am using the module ImportExcel.

I could provid emy script here, but would be interested in a simple solution before that, as my script involves some troubleshooting checks also.

Re: Need help from a Powershell expert on this snapmirror command

TzwaynY — Wed, 26 Feb 2025 13:15:39 GMT

Hi,

sorry im not very often in the netapp forum.

What exactly do you want?

Kai

Re: Need help from a Powershell expert on this snapmirror command

Sanaman — Thu, 27 Feb 2025 03:18:44 GMT

Hi Northman,

To me it's like syntax error in your PS. Write your command line to the screen and see. Your PS says

At line:17 char:83

+ ... sfer -SourcePath $srcSVM:$srcVolume -DestinationPath $dstSVM:$dstVolu ...

+ ~~~~~~~~

Variable reference is not valid. ':' was not followed by a valid variable name character

So, I thing source-path and destination-path are not formatted correctly.

My sample testing part is:

$excelFilePath = "C:\Users\anyuser\Scripts\snapmirror.xlsx"
$worksheet = "sheet1"
$excelData = Import-Excel -Path $excelFilePath -WorksheetName $worksheet

foreach ($row in $excelData ) {
$srcPath = $row.'Source Path'
$dstPath = $row.'Destination Path'
$cmdln = "Start-NcSnapMirrorInitialTransfer -SourcePath $srcPath -DestinationPath $dstPath"
write-host $cmdln
}

Start-NcSnapMirrorInitialTransfer -SourcePath mycifssvm:Report_Data -DestinationPath mycifsvault:surcesvm_App_Report_Data_vault
Start-NcSnapMirrorInitialTransfer -SourcePath mycifssvm:vol_FSLogix -DestinationPath mycifsvault:surcesvm_vol_FSLogix_vault

Good luck

Re: Need help from a Powershell expert on this snapmirror command

Northman — Thu, 27 Feb 2025 05:50:13 GMT

Thanks, we solved this a while ago, but I believe we used the solution above. Thanks all of you.