Hello,
have an old FAS3250 running ONTAP 9.1P20 - both of these (HW and ONTAP) are long past any support.
It was used for secondary backups using SnapMirror (XDP, Async) from the primary system running newer ONTAP (started with 9.8 and was updated over the years to 9.13.1P7).
Few days ago I have updated the primary system to 9.14.1P2 and since then the SnapMirror does not work.
I cannot update the existing relationships and cannot initialize new ones.
The error is reported on the 9.1 system
smc.snapmir.update.fail: Snapmirror update from source volume 'xxx' to destination volume 'yyy' failed with error 'Failed to create Snapshot copy snapmirror.zzz.2024-04-21_090500 on volume xxx.(Failed to start operation on source.)'. Relationship UUID 'zzz'.
There is no error on the 9.14 system (nothing in the event log, did not find anything in the other logs (maybe not looking properly).
Weird thing is the "snapmirror list-destinations" on the 9.14 does not return anything (the old snapmirror snapshots exists in the volumes).
The cluster and vserver peer relationships seems OK (available, healthy).
I can replicate from the 9.14 system to another system with ONTAP 9.13.1P7 (tried just for the test).
Found KB article and documentation page that states this is no longer supported (since a long time) - but according to that information it should not work even before.