Re: glabel metadata protection (WAS: ZFS: drive replacement performance)

2009-07-08 Thread Pete French
I would say in this case you're *not* giving the entire disk to the pool, you're giving ZFS a geom that's one sector smaller than the disk. ZFS never sees or can touch the glabel metadata. Is ZFS happy if the size of it's disc changes underneath it ? I have expanded a zpool a couple of

glabel metadata protection (WAS: ZFS: drive replacement performance)

2009-07-07 Thread Dan Naumov
Not to derail this discussion, but can anyone explain if the actual glabel metadata is protected in any way? If I use glabel to label a disk and then create a pool using /dev/label/disklabel, won't ZFS eventually overwrite the glabel metadata in the last sector since the disk in it's entirety

Re: glabel metadata protection (WAS: ZFS: drive replacement performance)

2009-07-07 Thread Barry Pederson
Dan Naumov wrote: If I use glabel to label a disk and then create a pool using /dev/label/disklabel, won't ZFS eventually overwrite the glabel metadata in the last sector since the disk in it's entirety is given to the pool? I would say in this case you're *not* giving the entire disk to the