SUMMARY: Breaking a mirrored disk for replacement which is under Veritas control

My question:

Hi All,

   I am just a beginner in vxvm stuff. I just prepared some steps to
replace a mirrored disk which is under veritas control without using
the vxdiskadm menu based command.I want some one to advise whether the
below steps are correct as i am not sure whether it leaves state
information about the disks stale in the vxvm config database if i
proceed like this .

In this scenario disk to be replaced is rootmirror(VM disk)

1.vxprint -ht | grep rootmirror

Disassociate and then remove all of the operating system plexes on the
mirror device "rootmirror":

2.vxplex -g rootdg -o rm dis home-02 opt-02 rootvol-02 swapvol-02 var-02

After removing all plexes remove the disk from veritas control :

3.vxdg -g rootdg rmdisk rootmirror

After the engg replaces the disk, issue this :

4. vxdctl enable

5./usr/lib/vxvm/bin/vxdisksetup -i c2t8d0 (Initialize the new disk)

6.vxdg -g rootdg adddisk rootmirror=c1t1d0 ( Put the disk under the VX control)

7./etc/vx/bin/vxrootmir rootmirror

8.vxassist mirror home rootmirror - done
  vxassist mirror opt rootmirror - done
  vxassist mirror swapvol rootmirror - done
  vxassist mirror var rootmirror

9.vxprint -ht

 Your comments are really appreciated.

The answer:

Infact  everything mentioned was correct but i missed one step , so i
am mentioning the complete steps below.I was even successful doing the
replacement;

Breaking a mirrored disk for replacement which is under Veritascontrol

1.vxprint -ht | grep rootmirror

Disassociate and then remove all of the operating system plexes on the
mirror device "rootmirror":

2.vxplex -g rootdg -o rm dis home-02 opt-02 rootvol-02 swapvol-02 var-02

After removing all plexes remove the disk from veritas control :

3.vxdg -g rootdg rmdisk rootmirror

4.vxdisk rm c1t1d0s2

After the engg replaces the disk, issue this :

5. vxdctl enable

6./usr/lib/vxvm/bin/vxdisksetup -i c2t8d0 (Initialize the new disk)

7.vxdg -g rootdg adddisk rootmirror=c1t1d0 ( Put the disk under the VX control)

8./etc/vx/bin/vxrootmir rootmirror

9.vxassist mirror home rootmirror - done
vxassist mirror opt rootmirror - done
vxassist mirror swapvol rootmirror - done
vxassist mirror var rootmirror

10.vxprint -ht


Regards,
Luke
http://unixadmintalk.com
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