another comment below... David Finberg wrote: > On Wed, 24 Dec 2008, Orvar Korvar wrote: > >> I was thinking of this plan: >> >> Unconnect one 500 GB drive from ZFSraid1. Now it only has 3 drives >> (slots: 0-2), but that doesnt matter because I can still read the data, >> because it is configured as raidz1. There are 5 empty SATA slots on the >> SATA card now. Slot 3 is now emptied. >> >> Connect 5 terabyte drives to the empty slots, and create a ZFS raid. >> copy all data from the 3 drives unto these 5 drives. Done. >> > > Why not plug one new drive into slot 4, partition it in 2 halves. Fill > the other 3 slots with 3 new drives. create a raidz with the 5 new vdevs. > ZFS send from the old to the new. Remove the old drives entirely. >
> Add the final new drives, replace one of the halves of slot 4 with the new > disk. I'm not sure if you can get away with a replace of a slice to a > device for the last step, but if you can't you sacrifice one of the old > drives at this point, replace the slice with the other device, then > replace back to the new full disk. > > If this last replace step works, then you never need to fiddle with the > old drives, so you're well protected against failures while > configuring the new drives. Even if it doesn't, you don't destroy any of > the old data until it is in a new configuration than can withstand the > loss of any one device > This is what I would do :-) But it really depends on the size of the data, not the size of the disks. -- richard _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
