VERITAS Volume Manager 3.5 Troubleshooting Guide (August 2002)

Chapter 2, Recovery from Boot Disk Failure

Recovery by Reinstallation

v v03 fsgen DISABLEDACTIVE 0720 SELECT -

pl v03-01 v03 DISABLEDACTIVE 30720 CONCAT - RW

sd disk02-01 v03-01 disk01 620544 30720 0 c1t5d5 ENA

pl v03-02 v03 DISABLEDNODEVICE30720 CONCAT - RW

sd disk01-04 v03-02 disk03 262144 30720 0 c1t5d6 DIS

This volume has two plexes, v03-01 and v03-02. The ﬁrst plex (v03-01) does not

use any space on the invalid disk, so it can still be used. The second plex (v03-02)

uses space on invalid disk disk01 and has a state of NODEVICE. Plex v03-02 must

be removed. However, the volumestill has one validplex containing valid data.If the

volume needs to be mirrored, another plex can be added later. Note the name of the

volume to create another plex later.

To remove an invalid plex, use the vxplex command to dissociate and then remove

the plex from the volume. For example, to dissociate and remove the plex v03-02,

use the following command:

# vxplex -o rm dis v03-02

7. Once all the volumes have been cleaned up, clean up the disk conﬁguration as

described in the following section, “Clean up Disk Conﬁguration.”

Clean up Disk Conﬁguration

Once all invalid volumes and plexes have been removed, the disk conﬁguration can be

cleaned up. Each disk that was removed, reinstalled, or replaced (as determined from the

output of the vxdisk list command) must be removed from the conﬁguration.

To remove the disk, use the vxdg command. To remove the failed disk disk01, use the

following command:

# vxdg rmdisk disk01

If the vxdg command returns an error message, some invalid mirrors exist. Repeat the

processes described in “Clean up Volumes” on page 32 until all invalid volumes and

mirrors are removed.

Final Volume Reconﬁguration

Once the root disk is under VxVM control, any other disks that were replaced should be

added using the vxdiskadm command.

Once all the disks have been added to the system, any volumes that were completely

removed as part of the conﬁguration cleanup can be recreated and their contents restored

frombackup. The volumerecreationcan bedone byusing the vxassist command or the

graphical user interface.