Hi Beau,

In this case, you would use /dev/dsk instead of /dev/rdsk,
but ZFS does not require them. Try this instead:

# zpool attach -f rpool c8t0d0s0 c8t1d0s0

Thanks,

Cindy

On 07/13/10 09:27, Beau J. Bechdol wrote:
So some progress! hers is what I get

r...@opensolaris:~# prtvtoc /dev/rdsk/c8t0d0s2 | fmthard -s - /dev/rdsk/c8t1d0s2
fmthard:  New volume table of contents now in place.

now this:

r...@opensolaris:~# zpool attach -f rpool /dev/rdsk/c8t0d0s0 /dev/rdsk/c8t1d0s0
cannot use '/dev/rdsk/c8t1d0s0': must be a block device or regular file

Im stuck now...

-Beau

On Mon, Jul 12, 2010 at 5:39 PM, Leslie H Wood <leslie.w...@oracle.com <mailto:leslie.w...@oracle.com>> wrote:

     Since the rpool can not use EFI labels you need to format the
    mirror disk so it is the same as your rpool disk.

    Example and your disk target will/may differ.

prtvtoc /dev/rdsk/c7t0d0s2 | fmthard -s - /dev/rdsk/c7t1d0s2 (s2 is the whole disk)

    Then just attach the disk to be mirrored

     /usr/sbin/zpool attach -f rpool  /dev/rdsk/c7t0d0s0  /dev/rdsk/c7t1d0s0

    If you want to be able to boot from the mirror as a CYA then run
    install grub


     installgrub -m /boot/grub/stage1 /boot/grub/stage2 /dev/rdsk/c7t1d0s0

    The following will show the progress of the resilvering

     zpool status


    john wrote, On 07/12/10 15:06:

        Hello all. I am new...very new to opensolaris and I am having an
        issue and have no idea what is going wrong. So I have 5 drives
        in my machine. all 500gb. I installed open solaris on the first
        drive and rebooted. . Now what I want to do is ad a second drive
        so they are mirrored. How does one do this!!! I am getting no
        where and need some help.



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