NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | ATTRIBUTES | SEE ALSO
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.
See scconf(1M) for the list of supported generic options.
The following action options describe the actions performed by the command. Only one action option is allowed in the command.
The following action options are supported:
Add a VxVM device group to the cluster configuration.
Change the ordering of the node preference list, change preference and failback policy, and change the desired number of secondaries.
Remove the specified VxVM device group from the cluster.
The following scconf(1M) commands create a VxVM device group, change the order of the potential primary nodes, change the preference and failback policy for the device group, change the desired number of secondaries, and remove the VxVM device group from the cluster configuration.
phys-host# scconf -a -D type=vxvm,name=diskgrp1, nodelist=host1:host2:host3,preferenced=false,failback=enabled phys-host# scconf -c -D name=diskgrp1, nodelist=host2:host1:host3,preferenced=true,failback=disabled, numsecondaries=2 phys-host# scconf -r -D name=diskgrp1,nodelist=node1 |
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE |
ATTRIBUTE VALUE |
---|---|
Availability |
SUNWcsu |
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | EXAMPLES | ATTRIBUTES | SEE ALSO