We recently upgraded to ONTap 8.2.3P3, but found that the restrictions with only 4 sessions for NDMP was causing us issues. We have 400+ sessions ordinarily, and when we were down to 4 sessions, it was taken over 7 days to secure the data. Daily backups had to be monitored to get the majority of backups through (NetBackup).
So, we decided to revert back to 8.1.4P1 (previous version).
Now, we have the NDMP functionality, but have lost the ability to snapmirror from 8.2.3P3 source to 8.1.4P1 destination.
I have left the replicated volumes alone, as that is our only point in time copy. We have around 20Tb to replicate, and only have 15Tb free, leaving the replicated volumes in place.
Is there a way to replicate from 8.2.3P3 to 8.1.4P1, using QSM, or even snapvault ?.
I don't want to upgrade again to 8.2.3P3 just to overcome the snapmirror issue, and sacrifice NDMP, as we need to get this data onto tape, and offsite due to regulatory requirements.
I have an option where I could back up the data via NFS mount points, but these are standard backups, and I cannot use Storage Lifecycle Policies.