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The scconf_dg_vxvm(1M)
command is used to add, change, and remove the VERITAS Volume Manager (VxVM) disk device groups to the Sun Cluster device groups configuration.
The add (-a) option adds a new VxVM disk device group
to the Sun Cluster device groups configuration. This involves defining a name
for the new device group, specifying the nodes on which this group can be
accessed, and specifying a set of properties used to control actions.
For VxVM disk device groups, only one VxVM disk group can be assigned
to a disk device group, and the disk device group name always matches the
name of the VxVM disk group. It is not possible to create a VxVM disk device
group unless the corresponding VxVM disk group is first imported on one of
the nodes in that device's nodelist.
Before a node can be added to a VxVM disk device group, every physical
disk in the disk group must be physically ported to that node. After registering
the disk group as a VxVM disk device group, it must first be deported from
the current node owner and the auto-import flag must be turned off for the
disk group.
To create a VxVM disk device group for a disk group, the scconf(1M)
command must be run from the same node where the disk group was created.
The scconf change (-c)
command changes the order of the potential primary node preference, to enable
or disable failback, to add more global devices to the device group, and to
change the desired number of secondaries.
If you want to change the order of node preference list from false to true all the nodes currently existing
in the device group must be specified in the nodelist.
You must also set the preferenced suboption to true.
If the preferenced suboption is not specified with
the change, the already established true
or false setting is used.
The sync option is used for synchronizing the clustering
software with VxVM diskgroup volume information. sync is
only valid with the change form or the command, and it should be used whenever
a volume is added to or removed from a device group.
The remove (-r) option removes a VxVM device group from
the Sun Cluster device groups configuration. This form of command can also
be used to remove the nodes from the VxVM disk device group configuration.
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