VERITAS Volume Manager 3.5 Troubleshooting Guide (September 2004)

Recovery from Hardware Failure

Recovery from DCO Volume Failure

Chapter 1

NOTE You cannot use vxassist snapback because the snapclear operation removes the

snapshot association information.

The following command sequence demonstrates how to recover the DCO volume that

tracks the top-level volume vol1 in the disk group egdg, and also how to snap back the

snapshot volume, SNAP-vol1, with vol1:

# vxdco -g egdg -o force enable vol1_dco

# vxvol -g egdg start vol1_dco

# vxassist -g egdg snapclear vol1 SNAP-vol1_snp

# vxplex -g egdg snapback vol1 SNAP-vol1-01

Here vol1_dco is the DCO associated with vol1, SNAP-vol1_snp is the snap object

associated with vol1 that points to the snapshot SNAP-vol1, and SNAP-vol1-01 is the

snapshot plex that is snapped back with vol1.

For more information, see the vxassist (1M) and vxdco (1M) manual pages.