SnapMirror: Undeleted

raimiansch — Thu, 05 Jun 2025 06:08:14 GMT

Hello Together!

Every day we got following DFM event for each snapmirror releationship. Does anyone know about this event?

Event:		SnapMirror: Undeleted
Source:		atss-naa05a:/L_CP061_D01
Severity:		Information
About:		SnapMirror Relationship
Condition:		SnapMirror relationship from atss-naa04a:/L_CP061_D01 (460) to atss-naa05a:/L_CP061_D01 (517) was undeleted.
Triggered:		07 Mar 08:55
Acknowledged:		No
Deleted:		No

Our Infrastructure is:

DFM: 5.1

OnTap: snapmirror source: 8.1.1 7-Mode

snapmirror destination: 8.1.2 7-Mode

thanks

Rainer

Re: SnapMirror: Undeleted

adaikkap — Thu, 07 Mar 2013 12:42:17 GMT

Hi Rainer,

The event basically means that a relationship which was already known to dfm and later got broken or deleted got rediscovered. Thats what it means.

To generate this event you can do the following.

Create a snapmirror relationship (using either ProtMgr or BCO).
Delete the relationship using "dfdrm mirror break" and "dfdrm mirror delete".
Re-establish the relationship from the ONTAP CLI using "snapmirror initialize".
Re-discover the relationship by refreshing the source and destination host monitors.
Now, run "dfm report view events-history <dest-obj-name>" where "dest-obj-name" is destination volume or qtree name.

If you are not doing step 2 or 3 and you are encountering this event could be due to a unreliable monitoring due to network issues or SNMP timeouts between dfm and your controllers.

Regards

adai

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SnapMirror: Undeleted

Re: SnapMirror: Undeleted