I'm looking for an informative Knowledge Base documents that explains how to migrate volumes across aggregates between two different NETAPP filers that are HA clustered using Snapmirror? one of the volumes has a LUN inside of it.
I've found a few articles here and there that has some info but for migrating volumes on the same controller.
This is interesting, I just completed a week ago exactly the same task. Migrated ~100 volumes containing luns from two different set of HA controllers.
I've done that using snapmirror.
Step i used:
1. Establish snapmirror relationships
2. Set schedule for snapmirror updates
3. Define a downtime to switch over to new volume (if needed)
4. Update snapmirror
5. Break and delete snapmirror realtionship
6. Switch to new volume.
There are some few additionla steps required to cleanly complete migration, but it all depends on your enviroment. I can provide more info / steps if needed.
Thanks for sharing your experience.
Did you use Netapp KB that details all steps?
The more details you can provide me the better it is. I'm not very familiar with snapmirror and better be prepared to the unexpected so things go as smooth as possible during the migration.