Veritas Volume Manager 4.1 Administrator's Guide (HP-UX 11i v3, February 2007)

Backing Up and Restoring Disk Group Configuration Data
174 VERITAS Volume Manager Administrator’s Guide
Backing Up and Restoring Disk Group Configuration Data
The disk group configuration backup and restoration feature allows you to back up and
restore all configuration data for disk groups, and for VxVM objects such as volumes that
are configured within the disk groups. The vxconfigbackupd daemon monitors
changes to the VxVM configuration and automatically records any configuration changes
that occur. Two utilities, vxconfigbackup and vxconfigrestore, are provided for
backing up and restoring a VxVM configuration for a disk group.
For information on backing up and restoring disk group configurations, see the “Backing
Up and Restoring Disk Group Configurations” chapter in the VERITAS Volume Manager
Troubleshooting Guide, and the vxconfigbackup(1M) and vxconfigrestore(1M)
manual pages.
Using vxnotify to Monitor Configuration Changes
You can use the vxnotify utility to display events relating to disk and configuration
changes that are managed by the vxconfigd configuration daemon. If vxnotify is
running on a system where the VxVM clustering feature is active, it displays events that
are related to changes in the cluster state of the system on which it is running. The
vxnotify utility displays the requested event types until you kill it, until it has received
a specified number of events, or until a specified period of time has elapsed.
Examples of configuration events that can be detected include disabling and enabling of
controllers, paths and DMP nodes, RAID-5 volumes entering degraded mode,
detachment of disks, plexes and volumes, and nodes joining and leaving a cluster.
For example, the following vxnotify command displays information about all disk,
plex, and volume detachments as they occur:
# vxnotify -f
The following command provides information about cluster configuration changes,
including the import and deport of shared disk groups:
# vxnotify -s -i
For more information about the vxnotify utility, and the types of configuration events
that it can report, see the vxnotify(1M) manual page.