Veritas Volume Manager 5.1 SP1 Troubleshooting Guide (5900-1507, April 2011)

Recovering from I/O errors during resynchronization

Snapshot resynchronization (started by vxsnap syncstart, or by specifying

sync=on to vxsnap) stops if an I/O error occurs, and displays the following message

on the system console:

VxVM vxsnap ERROR V-5-1-6840 Synchronization of the volume

volume stopped due to I/O error

After correcting the source of the error, restart the resynchronization operation.

To recover from I/O errors during resynchronization

◆

Type the following command:

# vxsnap [-b] [-g diskgroup] syncstart volume

Recovering from I/O failure on a DCO volume

If an I/O failure occurs on a DCO volume, its FastResync maps and DRL log cannot

be accessed, and the DCO volume is marked with the BADLOG flag. DRL logging

and recovery, and instant snapshot operations are not possible with the volume

until you recover its DCO volume.

If the I/O failure also affects the data volume, it must be recovered before its DCO

volume can be recovered.

See “Recovering a version 20 DCO volume” on page 33.

Recovering from instant snapshot failure

Recovering from I/O errors during resynchronization