Marcus,
The vtoc's are different becauseof VM's placement of its private and public
regions.
private part&tag public part&tag
c0t0d0 7-15 6-14
c0t1d0? 3-15 4-14
The offsets to the beginning of the partition do not matter. the content of
each partition does matter.
As for the disk used to replace c0t0d0, it seems you have only initiialized
the disk but have yet to mirror any volumes. Add the disk to the group and
then mirror all the volumes on the c0t1d? disk.
Bill
On Tue, Sep 7, 2010 at 3:38 PM, Marcus Reid <mar...@blazingdot.com> wrote:
> Hi,
>
> I've got a mirrored rootdisk (c0t0d0 and c0t1d0) that's
> encapsulated with vxvm. There are a couple of things that
> I was hoping someone could explain; if it was set up wrong
> that would be good to know as well.
>
> First, why are the partition tables different for c0t0d0
> and c0t1d0?
>
> prtvtoc /dev/rdsk/c0t0d0:
>
> * First Sector Last
> * Partition Tag Flags Sector Count Sector Mount Directory
> 0 2 00 0 2049720 2049719
> 1 3 01 2049720 2049720 4099439
> 2 5 00 0 35368272 35368271
> 3 7 00 4099440 2049720 6149159
> 4 8 00 10248600 2049720 12298319
> 5 4 00 6149160 4099440 10248599
> 6 14 01 0 35368272 35368271
> 7 15 01 35363560 4712 35368271
>
>
> prtvtoc /dev/rdsk/c0t1d0s2:
>
> * First Sector Last
> * Partition Tag Flags Sector Count Sector Mount Directory
> 0 2 00 6153872 2049720 8203591
> 1 3 01 8203592 2049720 10253311
> 2 5 00 0 35368272 35368271
> 3 15 01 0 4712 4711
> 4 14 01 4712 35363560 35368271
> 6 7 00 10253312 2049720 12303031
>
> Am I supposed to be able to boot off of either t0 or t1
> in this config?
>
> Also, upon failure of c0t0d0, when the disk is replaced I
> end up with:
>
> prtvtoc /dev/dsk/c0t0d0s2
>
> * First Sector Last
> * Partition Tag Flags Sector Count Sector Mount Directory
> 2 5 01 0 35368272 35368271
> 3 15 01 0 4712 4711
> 4 14 01 4712 35363560 35368271
>
> This doesn't look bootable. I tried encapsulating instead of
> initializing but it wouldn't work. How does one add c0t0d0
> back to the config and rebuild the mirror on it, getting the
> original partition layout back? Even if I were to use the
> partition table from c0t1d0 it wouldn't be the same (fmthard
> won't even let me use that partition table even, because it
> has overlaps.)
>
> Thank You,
>
> Marcus Reid
> _______________________________________________
> Veritas-vx maillist - Veritas-vx@mailman.eng.auburn.edu
> http://mailman.eng.auburn.edu/mailman/listinfo/veritas-vx
>
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