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213Creating and administering disk groups
Backing up and restoring disk group configuration data
For more information about how to use vxdctl, refer to 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.
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.