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

This command has no effect if a site name has not been set for the host.

See “Changing the read policy for mirrored volumes” on page 370.

Making an existing disk group site consistent

The site consistency feature requires that a license enabling the site awareness

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

configuration.

To make an existing disk group site consistent

Ensure that the disk group is updated to at least version 140 by running the

vxdg upgrade command on it:

# vxdg upgrade diskgroup

On each host that can access the disk group, define the site name:

# vxdctl set site=sitename

Tag all the disks in the disk group with the appropriate site name:

# vxdisk [-g diskgroup] settag site=sitename disk1 disk2

Or, to tag all the disks in a specified enclosure, use the following command:

# vxdisk [-g diskgroup] settag site=sitename

encl:encl_name

Use the vxdg move command to move any unsupported RAID-5 volumes to

another disk group. Alternatively, use the vxassist convert commands to

convert the volumes to a supported layout such as mirror or mirror-stripe.

You can use the site and mirror=site storage allocation attribute to ensure

that the plexes are created on the correct storage.

Use the vxevac command to ensure that the volumes have at least one plex

at each site. You can use the site and mirror=site storage allocation attribute

to ensure that the plexes are created on the correct storage.

See the vxevac(1m) manual page.

# vxdg -g diskgroup addsite sitename

471Administering sites and remote mirrors

Making an existing disk group site consistent