topic Re: Unable to remove snapmirror relationship in Microsoft Virtualization Discussions

Unable to remove snapmirror relationship

JLundfelt — Thu, 05 Jun 2025 06:27:50 GMT

I have a snapmirror relationship, setup on a single filer as a QSM to move data between 32bit and 64 bit aggregates-

Source	Destination	Status	State	LagTimeTS
------	-----------	------	-----	---------
irv-gdc-san1a:/vol/AI/EDW	irv-gdc-san1a:/vol/AI_1/EDW	idle	broken-off	01:59:11

I have ran Invoke-NaSnapmirrorQuiesce, and Invoke-NaSnapmirrorBreak, but when I run-

Remove-NaSnapmirror -destination irv-gdc-san1a:/vol/AI_1/EDW -Source irv-gdc-san1a:/vol/AI/EDW -SourceController irv-gdc-san1a

I get-

Removing snapmirror relationship

Are you sure you wish to remove the snapmirror relationship with source irv-gdc-san1a:/vol/AI/EDW and destination irv-gdc-san1a:/vol/AI_1/EDW?

[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"): y

Remove-NaSnapmirror : Incorrect credentials for irv-gdc-san1a.

At line:1 char:20

Any ideas on what I am missing?

Thanks,

Jon

Re: Unable to remove snapmirror relationship

cknight — Mon, 07 May 2012 19:38:18 GMT

Remove-NaSnapmirror must communicate with both source and destination controllers to fully remove the SnapMirror relationship. The argument -SourceController is of type NaController, as returned by Connect-NaController. The example in the help shows one of several ways you can do this:

C:\PS> Remove-NaSnapmirror -Destination benson:dunn_vol2_mirror -Source dunn:vol2 -SourceController (Connect-NaController dunn -Transient)

If you are using SnapMirror solely to move the data, you could also consider the NDMP copy cmdlets in Toolkit 2.0 to do that.

Re: Unable to remove snapmirror relationship

JLundfelt — Mon, 07 May 2012 22:24:08 GMT

As always, thanks for the fast response. The error I get now is-

PS C:\Windows> Remove-NcSnapmirror -Destination irv-gdc-san1a:/vol/AI_1/EDW -Source irv-gdc-san1a:/vol/AI/EDW -SourceCon

troller (Connect-NaController irv-gdc-san1a -Transient)

Remove-NaSnapmirror : SnapMirror error: destination is not in snapmirrored state

At line:1 char:20

+ Remove-NaSnapmirror <<<< -Destination irv-gdc-san1a:/vol/AI_1/EDW -Source irv-gdc-san1a:/vol/AI/EDW -SourceControlle

r (Connect-NaController irv-gdc-san1a -Transient)

+ CategoryInfo : InvalidOperation: (irv-gdc-san1a:NaController) [Remove-NaSnapmirror], ESNAPMIRRORERROR

+ FullyQualifiedErrorId : ApiException,DataONTAP.PowerShell.SDK.Cmdlets.Snapmirror.RemoveNaSnapmirror

Re: Unable to remove snapmirror relationship

cknight — Tue, 08 May 2012 21:06:14 GMT

Remove-NaSnapmirror is a convenience cmdlet that wraps multiple APIs calls. It is possible that your earlier invocation partially succeeded but left some elements of the relationship in place. In order for Data ONTAP to fully remove a SnapMirror relationship, there are multiple steps:

1. Quiesce transfers (not covered by Remove-NaSnapmirror) --> Invoke-NaSnapmirrorQuiesce

2. Release the mirror at the source controller --> Invoke-NaSnapmirrorRelease

3. Break the mirror at the destination --> Invoke-NaSnapmirrorBreak

4. Remove the destination base snapshot --> Remove-NaSnapshot

5. Remove the schedule at the destination --> Remove-NaSnapmirrorSchedule or Remove-NaSnapmirrorSyncSchedule

So if Get-NaSnapmirror returns a relationship but Remove-NaSnapmirror isn't working, try the steps individually to see where the problem might be.

Re: Unable to remove snapmirror relationship

JLundfelt — Wed, 16 May 2012 16:26:31 GMT

Thanks, that is really helpful, but what of snapmirror relationships that have long been off /broken-

Source	Destination	Status	State	LagTimeTS
------	-----------	------	-----	---------
IRV-SAN-NA1:dealerads	IRV-SAN-NA1:Dealer_Ads	idle	broken-off	184.15:04:09
irv-san-na1:Dev_DW	IRV-SAN-NA1:Dev_DW_NEW	idle	unknown	00:00:00
irv-san-na1:DWMS13VOL2	IRV-SAN-NA1:DWMS13VOL2_NEW	idle	unknown	00:00:00
irv-san-na1:DWMS14VOL2	IRV-SAN-NA1:DWMS14VOL2_NEW	idle	unknown	00:00:00
irv-san-na1:DWMS15VOL2	IRV-SAN-NA1:DWMS15VOL2_NEW	idle	unknown	00:00:00
irv-san-na1:DWMS16VOL2	IRV-SAN-NA1:DWMS16VOL2_NEW	idle	unknown	00:00:00

I'd like to just do a get-nasnapmirror | Remove-NaSnapmirror -SourceController (Connect-NaController irv-san-na1 -Transient)

But it errors out since the destination volumes have since been removed / renamed-

Removing snapmirror relationship

Are you sure you wish to remove the snapmirror relationship with source IRV-SAN-NA1:dealerads and destination IRV-SAN-NA1:Dealer_Ads?

[Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"): a

Remove-NaSnapmirror : SnapMirror error: source is offline, is restricted, or does not exist

At line:1 char:39

+ get-nasnapmirror | Remove-NaSnapmirror <<<< -SourceController (Connect-NaController irv-san-na1 -Transient)

+ CategoryInfo : InvalidOperation: (irv-san-na1:NaController) [Remove-NaSnapmirror], ESNAPMIRRORERROR

+ FullyQualifiedErrorId : ApiException,DataONTAP.PowerShell.SDK.Cmdlets.Snapmirror.RemoveNaSnapmirror

Any thoughts on how to force removal?

Message was edited by: Jon Lundfelt Update, Here is the output of each step- get-nasnapmirror | Invoke-NaSnapmirrorRelease Release SnapMirror relationship Are you sure you want to release SnapMirror relationship from IRV-SAN-NA1:dealerads to IRV-SAN-NA1:Dealer_Ads? [Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"): a Invoke-NaSnapmirrorRelease : SnapMirror error: source is offline, is restricted, or does not exist get-nasnapmirror | Invoke-NaSnapmirrorBreak Break SnapMirror relationship Are you sure you want to break SnapMirror for destination IRV-SAN-NA1:Dealer_Ads? [Y] Yes [A] Yes to All [N] No [L] No to All [S] Suspend [?] Help (default is "Y"): a Invoke-NaSnapmirrorBreak : SnapMirror error: destination is not in snapmirrored state get-nasnapmirror | Remove-NaSnapmirrorSchedule Remove-NaSnapmirrorSchedule : Unable to delete schedule for location: IRV-SAN-NA1:Dealer_Ads.

Re: Unable to remove snapmirror relationship

JLundfelt — Wed, 16 May 2012 17:51:42 GMT

nevermind, it was because the base snapshots on the destination needed to be removed.

Thanks!