Corrupt GPT on ZFS full-disks that shouldn't be using GPT

Chris Stankevitz chrisstankevitz at
Mon Jun 29 00:46:34 UTC 2015

On Sun, Jun 28, 2015 at 4:22 PM,  <kpneal at> wrote:
> I'm not sure if offlining the disk you are touching will make any difference.
> It may just make recovery more complicated. If it was me I'd just zero the
> last block without the offline/online dance.


Thank you.  Can I use dd on a /dev/daX that is currently part of an
imported, mounted, and online zpool?  Also, if anyone can answer this
question more generally, I'd appreciate it: are there times (other
than r-x) when I do not have permission/ability to dd if=/dev/zero


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