Thanks again Saso, at least I have closure :)
Scott On Mon, Aug 13, 2012 at 11:24:55AM +0200, Sa?o Kiselkov wrote: > On 08/13/2012 10:45 AM, Scott wrote: > > Hi Saso, > > > > thanks for your reply. > > > > If all disks are the same, is the root pointer the same? > > No. > > > Also, is there a "signature" or something unique to the root block that I > > can > > search for on the disk? I'm going through the On-disk specification at the > > moment. > > Nope. The checksums are part of the blockpointer, and the root > blockpointer is in the uberblock, which itself resides in the label. By > overwriting the label you've essentially erased all hope of practically > finding the root of the filesystem tree - not even checksumming all > possible block combinations (of which there are quite a few) will help > you here, because you have no checksums to compare them against. > > I'd love to be wrong, and I might be (I don't have as intimate a > knowledge of ZFS' on-disk structure as I'd like), but from where I'm > standing, your raidz vdev is essentially lost. > > -- > Saso > _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
