VERITAS Storage Foundation 4.1 Cross-Platform Data Sharing Administrator's Guide

Disk Group Tasks
26 VERITAS Storage Foundation CDS Administrator’s Guide
Determining the Setting of the CDS Attribute
You can use the vxdg list or vxprint commands to determine the state of the CDS attribute,
as follows:
# vxdg list
NAME STATE ID
dgTestSol2 enabled,cds 1063238039.206.vmesc1
# vxdg list dgTestSol2
Group: dgTestSol2
dgid: 1063238039.206.vmesc1
import-id: 1024.205
flags: cds
version: 110
alignment: 8192 (bytes)
...
# vxprint -F %cds -G -g dgTestSol2
on
In these examples, the disk group, dgTestSol2, is shown as having the CDS flag set.
Joining Disk Groups
Use the vxdg join command to join two 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. Refer to the VERITAS
Volume Manager Adminstrator’s Guide for examples of using this command.
Note This command is not supported for the Solaris OS on the X86 platform.
Moving Objects Between CDS and Non-CDS Disk Groups
Use the vxdg move command to move objects between CDS and non-CDS disk groups. The
alignment of a source non-CDS disk group must be 8K to allow objects to be moved to a target
CDS disk group. If objects are moved from a CDS disk group to a target non-CDS disk group with
an alignment of 1, the alignment of the target disk group remains unchanged. Refer to the VERITAS
Volume Manager Adminstrator’s Guide for examples of using this command.
Note This command is not supported for the Solaris OS on the X86 platform.