topic Re: Cluster Snapmirror Lag in Microsoft Virtualization Discussions

Cluster Snapmirror Lag

CLAYTONJS — Thu, 05 Jun 2025 05:28:45 GMT

Sorry if this has been discussed before, but I wasn't able to find it.

I'm looking to find the lag time for snapmirrors on c-mode. In 7-mode, when we did Get-NaSnapmirror we could get LagTimeTS. So far I'm unable to find lag time for c-mode and I can't tell if I'm just blind or if it's not there. Has anyone else run into this?

PS C:\> Get-NaToolkitVersion

Major Minor Build Revision

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

3 1 1 181

PS C:\> Get-NcSnapmirror

SourceLocation DestinationLocation Status MirrorState

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

svmnas1:tst_smb_01 svmbkp1:svmnas1_tst_smb_01_dp idle snapmirrored

PS C:\> Get-NcSnapmirrorDestination

SourceLocation : svmnas1:tst_smb_01

DestinationLocation : svmbkp1:svmnas1_tst_smb_01_dp

NcController : nas01

DestinationVolume : svmnas1_tst_smb_01_dp

DestinationVserver : svmbkp1

IsConstituent : False

ProgressLastUpdated :

RelationshipId : 22ec4394-2a6f-11e4-872c-123465829712

RelationshipStatus : idle

RelationshipType : data_protection

SourceVolume : tst_smb_01

SourceVolumeNode : nas01-c

SourceVserver : svmnas1

TransferProgress :

IsConstituentSpecified : True

ProgressLastUpdatedSpecified : False

TransferProgressSpecified : False

Re: Cluster Snapmirror Lag

billyd — Mon, 15 Sep 2014 19:00:49 GMT

There isn't a LagTimeTS member for Get-NCSnapmirror as far as I could tell. I've used LagTime to get the seconds since the last transfer and I've worked with that before.

To find relationships older than a day: get-ncsnapmirror | Where-Object {$_.lagTime -gt 86400}

To change the output from seconds to date format I did the following:

get-ncsnapmirror | select SourceLocation,DestinationLocation,@{n="Lag";e={(get-date).addseconds(($_.LagTime * -1)).tostring('MM/dd/yyyy')}}

SourceLocation	DestinationLocation	Lag
--------------	-------------------	---
SRC:usrvol1	DEST:usrvol1	09/15/2014
SRC:vol_homedirs	DEST:vol_homedirs	09/15/2014
SRC:vol_test	DEST:vol_test	01/29/2014

Re: Cluster Snapmirror Lag

CLAYTONJS — Mon, 15 Sep 2014 21:39:02 GMT

Exactly what I was looking for. Thank you.