Veritas Volume Manager 5.0 Administrator's Guide (September 2006)

408 Administering cluster functionality
Administering VxVM in cluster environments
Administering VxVM in cluster environments
The following sections describe the administration of VxVM’s cluster functionality.
Note: Most VxVM commands require superuser or equivalent privileges.
Requesting node status and discovering the master node
The vxdctl utility controls the operation of the vxconfigd volume configuration
daemon. The -c option can be used to request cluster information and to find out which
node is the master. To determine whether the vxconfigd daemon is enabled and/or
running, use the following command:
# vxdctl -c mode
This produces different output messages depending on the current status of the cluster
node:
Note: If the vxconfigd daemon is disabled, no cluster information is displayed.
See the
vxdctl(1M) manual page for more information.
Determining if a disk is shareable
The vxdisk utility manages VxVM disks. To use the vxdisk utility to determine
whether a disk is part of a cluster-shareable disk group, use the following command:
Table 13-5 Cluster status messages
Status message Description
mode: enabled: cluster active - MASTER
master: mozart
The node is the master.
mode: enabled: cluster active - SLAVE
master: mozart
The node is a slave.
mode: enabled: cluster active - role not set
master: mozart
state: joining
reconfig: master update
The node has not yet been
assigned a role, and is in the
process of joining the cluster.
mode: enabled: cluster active - SLAVE
master: mozart
state: joining
The node is configured as a
slave, and is in the process of
joining the cluster.
mode: enabled: cluster inactive The cluster is not active.