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

■ Update the DMP database with changes in path type for active/passive disk
arrays. Use the utilities provided by the disk-array vendor to change the path
type between primary and secondary.
See the vxdctl(1M) manual page.
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.
See the Veritas Volume Manager Troubleshooting Guide.
See the vxconfigbackup(1M) manual page.
See the vxconfigrestore(1M) manual page.
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:
247Creating and administering disk groups
Backing up and restoring disk group configuration data