Veritas Storage Foundation Portable Data Containers: Cross-Platform Data Sharing 5.0.1 Administrators Guide, HP-UX 11i v3, First Edition, November 2009

Joining disk groups

Joining two CDS disk groups or joining two non-CDS disk groups is permitted, but

you cannot join a CDS disk group to a non-CDS disk group. If two non-CDS disk

groups have different alignment values, the alignment of the resulting joined disk

group is set to 1, and an informational message is displayed.

Note: The command to join disk groups is not supported for the Solaris OS on the

x64 platform.

To join two disk groups

■ Use the vxdg join command to join two disk groups.

See the Veritas Volume Manager Adminstrator’s Guide.

Changing the default CDS setting for disk group creation

To change the default CDS setting for disk group creation

■ Edit the /etc/default/vxdg file, and change the setting for the cds attribute.

Creating non-CDS disk groups

A disk group with a version lower than 110 is given an alignment value equal to

1 when it is imported. This is because the dg_align value is not stored in the

configuration database for such disk groups.

Note: Disk groups with version numbers lower than 110 are not supported for the

Solaris OS on the x64 platform.

To create a non-CDS disk group with a version lower than 110

■ Type the following vxdg command:

# vxdg -T version init diskgroup disk_name=disk_access_name

Upgrading an older version non-CDS disk group

You may want to upgrade a non-CDS disk group with a version lower than 110 in

order to use new features othe rthan CDS. After upgrading the disk group, the

cds attribute is set to off, and the disk group has an alignment of 1.

Maintaining your system

Disk group tasks