That's why I'm asking. I think it should always mirror the partition table and allocate exactly the same amount of space so that the pool doesn't suddenly change sizes unexpectedly and require a disk size that I don't have at hand, to put the mirror back up.

Gregg

On 12/18/2011 4:08 PM, Nathan Kroenert wrote:
Do note, that though Frank is correct, you have to be a little careful around what might happen should you drop your original disk, and only the large mirror half is left... ;)

On 12/16/11 07:09 PM, Frank Cusack wrote:
You can just do fdisk to create a single large partition. The attached mirror doesn't have to be the same size as the first component.

On Thu, Dec 15, 2011 at 11:27 PM, Gregg Wonderly <gregg...@gmail.com <mailto:gregg...@gmail.com>> wrote:

    Cindy, will it ever be possible to just have attach mirror the surfaces,
    including the partition tables?  I spent an hour today trying to get a
    new mirror on my root pool.  There was a 250GB disk that failed.  I only
    had a 1.5TB handy as a replacement.  prtvtoc ... | fmthard does not work
    in this case and so you have to do the partitioning by hand, which is
    just silly to fight with anyway.

    Gregg

    Sent from my iPhone

    On Dec 15, 2011, at 6:13 PM, Tim Cook <t...@cook.ms <mailto:t...@cook.ms>>
    wrote:

    Do you still need to do the grub install?

    On Dec 15, 2011 5:40 PM, "Cindy Swearingen" <cindy.swearin...@oracle.com
    <mailto:cindy.swearin...@oracle.com>> wrote:

        Hi Anon,

        The disk that you attach to the root pool will need an SMI label
        and a slice 0.

        The syntax to attach a disk to create a mirrored root pool
        is like this, for example:

        # zpool attach rpool c1t0d0s0 c1t1d0s0

        Thanks,

        Cindy

        On 12/15/11 16:20, Anonymous Remailer (austria) wrote:


            On Solaris 10 If I install using ZFS root on only one drive is
            there a way
            to add another drive as a mirror later? Sorry if this was discussed
            already. I searched the archives and couldn't find the answer.
            Thank you.
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