Veritas Volume Manager 5.1 SP1 Administrator"s Guide (5900-1506, April 2011)

Turn on site consistency for the disk group:

# vxdg -g diskgroup set siteconsistent=on

Turn on the allsites flag for the volume which requires data replication to

each site:

# vxvol [-g diskgroup] set allsites=on volume

Turn on site consistency for each existing volume in the disk group for which

site consistency is needed. You also need to attach DCOv20 if it is not attached

already. DCOv20 is required to ensure that site detach and reattach are

instantaneous.

See “Preparing a volume for DRL and instant snapshots” on page 359.

# vxvol [-g diskgroup] set siteconsistent=on volume ...

Configuring a new disk group as a Remote Mirror

configuration

Note: The Remote Mirror feature requires that a license enabling the Site

Awareness feature has been purchased for all hosts at all sites that participate in

the configuration.

This section describes setting up a new disk group. To configure an existing disk

group as a Remote Mirror configuration, additional steps may be required.

See “Making an existing disk group site consistent” on page 471.

Setting up a new disk group for a Remote Mirror configuration

Define the site name for each host that can access the disk group.

# vxdctl set site=sitename

To verify the site name assigned to the host, use the following command:

# vxdctl list

Create the disk group with storage from each site.

Administering sites and remote mirrors

Configuring a new disk group as a Remote Mirror configuration

472