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Full Discussion: Veritas root disk mirroring
Operating Systems Solaris Veritas root disk mirroring Post 302098928 by Jartan on Thursday 7th of December 2006 11:18:33 AM
Old 12-07-2006
Veritas root disk mirroring

Hi there,

My task is to replace the two 73 G disks with two 143 G disks , which has vxvm 4.1 running on it. I would like to know whether the steps iam following are correct.
1. Break the sub-disks, plexes of the root mirror.
2. Remove the sub-disks,plexes of the root mirror.
3. Remove one of the hard disk(eg. c0t1d0) and replace new.
4. Initialize the new disk and create subdisks and plexes
5. Attach the subdisks and plexes to the existing volumes
6. once there's no task in vxtask, do the same for the primary root disk(c0t0d0) also.

i would like to know whether i need to de-encapsulate the root disk before i do this.and also do i need to perform these in single-user mode? and also do i need to export the disk-group before i do these?

Please correct me if iam wrong.

Any help would be greatly appreciated.
 

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volunroot(8)						      System Manager's Manual						      volunroot(8)

NAME
volunroot - Remove Logical Storage Manager hooks for rootable volumes SYNOPSIS
/usr/sbin/volunroot [-a | -A] OPTIONS
Specifies that all volumes on the system disk be converted back to UNIX disk partitions, not just the root and swap volumes, rootvol and swapvol. Forces removal of the private region unless it is the last one in the system. DESCRIPTION
The volunroot script can be used to restore the accessibility of the root, swap, and other file systems on the boot disk directly through disk partitions instead of through volume devices. The script also removes other changes that were made to enable booting of the system from the root volume, so that the system will boot with no dependency on the Logical Storage Manager. When used with no options, volunroot affects only the root and swap volumes, rootvol and swapvol. For volunroot to work properly, only one plex must exist for each of the affected volumes. This plex must be the one created by volrootmir or the original plex created when the root disk was encapsulated. This ensures that the underlying subdisks will have equivalent partitions defined for them on the disk. If these conditions are not met, the volunroot operation fails and none of the volumes are converted to disk partitions. The unwanted plexes can be removed using either voledit or volplex. SEE ALSO
volencap(8), voldiskadm(8), voledit(8), volintro(8), volplex(8), volrootmir(8) volunroot(8)
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