Veritas Volume Manager 5.0.1 Administrator's Guide, HP-UX 11i v3, First Edition, November 2009

site fails, all its plexes are detached and the site is said to be detached. Turn on
this behavior by setting the siteconsistent attribute to on.
If the siteconsistent attribute is set to off, only the plex that fails is detached.
The remaining volumes and their plexes on that site are not detached.
Site consistency is intended for data volumes. The feature is not recommended
for the boot disk group. Because DCO logs are not supported, the feature might
cause an undesirable increase of recovery time for the boot disk group.
If you turn on the site consistency requirement for a disk group, each new volume
created in the disk group inherits the site consistency of the disk group, by default.
Setting the siteconsistent attribute on a disk group does not affect existing
volumes in the disk group. You can also control the site consistency on individual
volumes.
See “Configuring site consistency on a volume” on page 496.
Before setting site consistency on a disk group, be sure to meet the following
requirements:
■ Site-based allocation must be configured for a disk group before site consistency
is turned on.
See “Configuring site-based allocation on a disk group” on page 493.
■ All the disks in a disk group must be registered to one of the sites before you
can set the siteconsistent attribute on the disk group.
To turn on the site consistency requirement for a disk group
◆
Turn on the site consistency requirement for a disk group by using the vxdg
command:
# vxdg -g diskgroup set siteconsistent=on
To view the setting for the site consistency requirement
◆
To verify whether site consistency has been enabled for a disk group, use the
following command:
# vxdg list diskgroup | grep siteconsistent
flags: siteconsistent
To turn off the site consistency requirement
◆
To turn off the site consistency requirement for a disk group, use the following
command:
# vxdg -g diskgroup set siteconsistent=off
495Administering sites and remote mirrors
Configuring site consistency on a disk group