On Tue, Feb 16, 2010 at 23:57, Daniel Carosone <d...@geek.com.au> wrote:
> On Tue, Feb 16, 2010 at 11:39:39PM -0500, Ethan wrote: > > If slice 2 is the whole disk, why is zpool trying to using slice 8 for > all > > but one disk? > > Because it's finding at least part of the labels for the pool member there. > > Please check the partition tables of all the disks, and use zdb -l on > the various partitions, to make sure that you haven't got funny > offsets or other problems hiding the data from import. > > In a default solaris label, s2 and s8 start at cylinder 0 but are > vastly different sizes. You need to arrange for your labels to match > however the data you copied got laid out. > > > Can I explicitly tell zpool to use slice 2 for each device? > > Not for import, only at creation time. On import, devices are chosen > by inspection of the zfs labels within. zdb -l will print those for > you; when you can see all 4 labels for all devices your import has a > much better chance of success. > > -- > Dan. > How would I go about arranging labels? I only see labels 0 and 1 (and do not see labels 2 and 3) on every device, for both slices 8 (which makes sense if 8 is just part of the drive; the zfs devices take up the whole drive) and slice 2 (which doesn't seem to make sense to me). Since only two of the four labels are showing up for each of the drives on both slice 2 and slice 8, I guess that causes zpool to not have a preference between slice 2 and slice 8? So it just picks whichever it sees first, which happened to be slice 2 for one of the drives, but 8 for the others? (I am really just guessing at this.) So, on one hand, the fact that it says slice 2 is online for one drive makes me think that if I could get it to use slice 2 for the rest maybe it would work. On the other hand, the fact that I can't see labels 2 and 3 on slice 2 for any drive (even the one that says it's online) is worrisome and I want to figure out what's up with that. Labels 2 and 3 _do_ show up (and look right) in zdb -l running in zfs-fuse on linux, on the truecrypt volumes. If it might just be a matter of arranging the labels so that the beginning and end of a slice are in the right place, that sounds promising, although I have no idea how I go about arranging labels. Could you point me in the direction of what utility I might use or some documentation to get me started in that direction? Thanks, -Ethan
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