at the moment we are running SLES11 SP4 with an ext3 partition for GroupWise.
I want to upgrade to SLES12 SP4 first and if everything goes fine, change the fs type after upgrade from the GroupWise partition from ext3 to ext4.
I saw in the SLES documentation the ugrading process only works offline. Booting with SLES12-SP4 DVD and selecting the option "upgrade". I hope this process won't make any problems. But to be sure, I'm going to do a snapshot before.
I just have only some concerns migrating the ext3 to ext4 with groupwise data on it. Anyone some expiriences with the fs type migration ? Another option could be, to mount a new ext4 drive, copy the groupwise data from the old ext3 partition, rename the ext3 partition so the new ext4 partition gets the correct mount name... But this would take longer and my groupwise would be offline for this time.
Doing the copy with dbcopy could be a possibility. So the offline time would only be for the last dbcopy run and for the renaming und mounting partitions time.
Another question for dbcopy. Does dbcopy "delete" files on the destination which does not exist in the source anymore, or does the dbcopy just do an incremental copy and the "destination" will always grow and will be bigger than the source ?
Thanks and regards.