VERITAS Volume Manager 4.1 Administrator's Guide

Administering Volumes

Backing up Volumes Online

Chapter 8308

Step 4. Use fsck (or some utility appropriate for the application running on the

volume) to clean the temporary volume’s contents. For example, you can

use this command:

# fsck vxfs /dev/vx/rdsk/diskgroup/tempvol

Step 5. Perform appropriate backup procedures, using the temporary volume.

Step 6. Stop the temporary volume, using the following command:

# vxvol [-g diskgroup] stop tempvol

Step 7. Dissociate the backup plex from its temporary volume, using the

following command:

# vxplex [-g diskgroup] dis plex

Step 8. Reassociate the backup plex with its original volume to regain

redundancy of the volume, using the following command:

# vxplex [-g diskgroup] att original_volume plex

Step 9. Remove the temporary volume, using the following command:

# vxedit [-g diskgroup] rm tempvol

NOTE If the ﬁle system is active during the period that the temporary volume is

created, its contents may be inconsistent. For information on an

alternative online backup method using the VxVM snapshot facility, see

the next section “Backing Up Volumes Online Using Snapshots” on

page 308

Backing Up Volumes Online Using Snapshots

NOTE You can use the procedure described in this section to create a snapshot

of a RAID-5 volume and to back it up.