On Tue, Mar 23, 2010 at 2:00 PM, Ray Van Dolson <rvandol...@esri.com> wrote:
> Kind of a newbie question here -- or I haven't been able to find great > search terms for this... > > Does ZFS recognize zpool members based on drive serial number or some > other unique, drive-associated ID? Or is it based off the drive's > location (c0t0d0, etc). > ZFS makes uses of labels and will detect your drives even if you move them around. You can check that with 'zdb -l /dev/rdsk/cXtXdXs0' > > I'm wondering because I have a zpool set up across a bunch of drives > and I am planning to move those drives to another port on the > controller potentially changing their location -- as well as the > location of my "boot" zpool (two disks). > > Will ZFS detect this and be smart about it or do I need to do something > like a zfs export ahead of time? What about for the root pool? > No need. Same goes for the rpool, you only need to make sure your system will boot from the correct disk. -- Giovanni
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