Veritas Volume Manager 5.0.1 Troubleshooting Guide, HP-UX 11i v3, First Edition, November 2009

Technical Support ............................................................................................... 4
Chapter 1 Recovering from hardware failure ..................................... 9
About recovery from hardware failure ............................................... 9
Listing unstartable volumes ........................................................... 10
Displaying volume and plex states ................................................... 11
The plex state cycle ..................................................................... 11
Recovering an unstartable mirrored volume ..................................... 14
Recovering an unstartable volume with a disabled plex in the
RECOVER state ...................................................................... 15
Forcibly restarting a disabled volume .............................................. 15
Clearing the failing flag on a disk .................................................... 16
Reattaching failed disks ................................................................ 17
Failures on RAID-5 volumes ........................................................... 18
System failures ...................................................................... 18
Disk failures .......................................................................... 19
Default startup recovery process for RAID-5 .............................. 21
Recovery of RAID-5 volumes .................................................... 21
Recovery after moving RAID-5 subdisks ..................................... 24
Unstartable RAID-5 volumes .................................................... 25
Recovering from an incomplete disk group move ............................... 27
Recovery from failure of a DCO volume ............................................ 28
Recovering a version 0 DCO volume ........................................... 31
Recovering a version 20 DCO volume ......................................... 33
Chapter 2 Recovering from instant snapshot failure ..................... 35
Recovering from the failure of vxsnap prepare .................................. 35
Recovering from the failure of vxsnap make for full-sized instant
snapshots ............................................................................. 36
Recovering from the failure of vxsnap make for break-off instant
snapshots ............................................................................. 37
Recovering from the failure of vxsnap make for space-optimized
instant snapshots ................................................................... 37
Recovering from the failure of vxsnap restore ................................... 38
Recovering from the failure of vxsnap reattach or refresh ................... 38
Contents