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

413Administering cluster functionality

Administering VxVM in cluster environments

Changing the activation mode on a shared disk group

Note: The activation mode for access by a cluster node to a shared disk group is set on that

node.

The activation mode of a shared disk group can be changed using the following command:

# vxdg -g diskgroup set activation=mode

The activation mode is one of exclusivewrite or ew, readonly or ro,

sharedread or sr, sharedwrite or sw, or off.

If you use this command to change the activation mode of a shared disk group, you must

first change the activation mode to off before setting it to any other value, as shown here:

# vxdg -g myshdg set activation=off

# vxdg -g myshdg set activation=readonly

See “Activation modes of shared disk groups” on page 391.

Setting the disk detach policy on a shared disk group

Note: The disk detach policy for a shared disk group can only be set on the master node.

The

vxdg command may be used to set either the global or local disk detach policy

for a shared disk group:

# vxdg -g diskgroup set diskdetpolicy=global|local

The default disk detach policy is global.

See “Connectivity policy of shared disk groups” on page 393.

Setting the disk group failure policy on a shared disk group

Note: The disk group failure policy for a shared disk group can only be set on the master

node.

The

vxdg command may be used to set either the dgdisable or leave failure policy

for a shared disk group:

# vxdg -g diskgroup set dgfailpolicy=dgdisable|leave

The default failure policy is dgdisable.

See “Disk group failure policy” on page 395.