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

The conversion involves evacuating objects from the disk, reinitializing the
disk, and relocating objects back to disk. You can specify the -o novolstop
option to perform the conversion on-line (that is, while access to the disk
continues). If the -o novolstop option is not specified, stop any applications
that are accessing the disks, and perform the conversion off-line.
Warning: Specifying the -o novolstop option can greatly increase the amount
of time that is required to perform conversion.
Before you use the vxcdsconvert command, make sure you understand its
options, attributes, and keywords.
See the vxcdsconvert(1M) manual page.
Converting a non-CDS disk group to a CDS disk group
To convert a non-CDS disk group to a CDS disk group
1
If the disk group contains one or more disks that you do not want to convert
to CDS disks, use the vxdg move or vxdg split command to move the disks
out of the disk group.
2
The disk group to be converted must have the following characteristics:
■ No dissociated or disabled objects.
■ No sparse plexes.
■ No volumes requiring recovery.
■ No volumes with pending snapshot operations.
■ No objects in an error state.
To verify whether a non-CDS disk group can be converted to a CDS disk group,
type the following command:
# vxcdsconvert -g diskgroup -A group
3
If the disk group does not have a CDS-compatible disk group alignment, the
objects in the disk group must be relayed out with a CDS-compatible
alignment.
4
If the conversion is not going to performed on-line (that is, while access to
the disk group continues), stop any applications that are accessing the disks.
5
Type one of the following forms of the CDS conversion utility (vxcdsconvert)
to convert a non-CDS disk group to a CDS disk group.
25Setting up your system
Converting a non-CDS disk group to a CDS disk group