VERITAS Volume Manager 3.5 Troubleshooting Guide (September 2004)
Recovery from Boot Disk Failure
Recovery by Reinstallation
Chapter 2
43
c1t5d2 ENA
sd disk01-05 v02-01
disk01 620544
10240 1/0
c1t5d3 DIS
sd disk03-01 v02-01
disk03 620544
10240 2/0
c1t5d4 ENA
The display shows three disks, across which the plex v02-01 is striped (the lines starting
with sd represent the stripes). One of the stripe areas is located on a failed disk. This
disk is no longer valid, so the plex named v02-01 has a state of NODEVICE. Since this is
the only plex of the volume, the volume is invalid and must be removed. If a copy of v02
exists on the backup media, it can be restored later. Keep a record of the volume name
and length of any volume you intend to restore from backup.
Remove invalid volumes (such as v02) using the following command:
# vxedit -r rm v02
Step 6. A volume that has one mirror on a failed disk can also have other mirrors on disks that
are still valid. In this case, the volume does not need to be restored from backup, since
the data is still valid on the valid disks.
The output of the vxprint -th command for a volume with one plex on a failed disk
(disk01) and another plex on a valid disk (disk02) is similar to the following:
V NAME
USETYPE KSTATE
STATE LENGTH
READPOL PREFPLEX
PL NAME
VOLUME KSTATE
STATE LENGTH
LAYOUT NCOL/WID
MODE
SD NAME PLEX
DISK DISKOFFS
LENGTH COL/]OFF
DEVICE MODE
v v03
fsgen DISABLED
ACTIVE 0720
SELECT -
pl v03-01 v03
DISABLED ACTIVE
30720 CONCAT
-RW
sd disk02-01 v03-01
disk01 620544
30720 0
c1t5d5 ENA
pl v03-02 v03
DISABLED NODEVICE
30720 CONCAT