Creating a CDS disk group by using vxdiskadm
You cannot create a CDS disk group when encapsulating an existing disk, or when converting an LVM volume.
When initializing a disk, if the target disk group is an existing CDS disk group, vxdiskadm will only allow the disk to be initialized as a CDS disk. If the target disk group is a non-CDS disk group, the disk can be initialized as either a CDS disk or a non-CDS disk.
If you use the vxdiskadm command to initialize a disk into an existing CDS disk group, the disk must have be added with the cdsdisk format.
The CDS attribute for the disk group remains unchanged by this procedure.
To create a CDS disk group by using the vxdiskadm command