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

To recover from the failure of the vxsnap prepare command

◆

Type the following command:

# vxedit [-g diskgroup] rm DCO_volume

Alternatively, the DCO volume is removed automatically when the system is

next restarted. When the DCO volume has been removed, run the vxsnap

prepare command again.

Recovering from the failure of vxsnap make for

full-sized instant snapshots

If a vxsnap make operation fails during the creation of a full-sized instant snapshot,

the snapshot volume may go into the DISABLED state, be marked invalid and be

rendered unstartable. You can use the following command to check that the

inst_invalid flag is set to on:

# vxprint [-g diskgroup] -F%inst_invalid snapshot_volume

VxVM can usually recover the snapshot volume without intervention. However,

in certain situations, this recovery may not succeed. If this happens, the DCO

volume must be deleted.

To recover from the failure of the vxsnap make command for full-sized instant

snapshots

Use the vxmend command to clear the snapshot volume’s tutil0 field:

# vxmend [-g diskgroup] clear tutil0 snapshot_volume

Run the following command on the snapshot volume:

# vxsnap [-g diskgroup] unprepare snapshot_volume

Prepare the snapshot volume again for snapshot operations:

# vxsnap [-g diskgroup] prepare snapshot_volume

Recovering from instant snapshot failure

Recovering from the failure of vxsnap make for full-sized instant snapshots