[rmp.dmd1229]

As much as we want to upgrade without the need to backup/restore, i'm assuming that it can never really done.

So essentially, here's what we need to do.

1. backup data
2. power off SNAP. remove disk on slot 2 to 4
3. put new disc on slot 2.
4. power ON and let it sync.
5. when sync is done, power off. remove disc on slot 1 and put new disc from slot 2 to slot 1.
6. Power ON. If boots fine, put all new discs to slot 2 to 4.
7. Rebuild Raid 5
8. Restore from Backup.

if these fails, I can just power off and put old discs back?

Please advise.

Thanks!