Hello,
What about :
- Stopping IOs to the LUN.
- Offlining the LUN.
- Unmapping the LUN from the iSCSI igroup.
- Mapping it to the new FCP igroup.
- Re-onlining the LUN.
I mean as long as the content of the LUN : partition table / filesytem(s) included are compatible with the OS from the target FCP server, why not ?
This is how I already migrated LUNs from iSCSI to FCP servers, but if you want to backup/restore it's up to you.
You could at least try ;). Take a snapshot before doing so.
Xavier Pitz