When you import a disk group, VxVM tries to ensure that the set of disks is consistent and does not contain duplicate disks. By default, VxVM does not import disks which have the udid_mismatch flag or the clone_disk flag. If the disk group contains both clone and non-clone disks, the default is to import the disk group with only the original (non-cloned) disks. VxVM does not support importing a mix of cloned and non-cloned disks in the same disk group.
See How VxVM handles hardware clones or snapshots.
If you want to import the cloned disks (disk copies), you can do one of the following:
Update the UDID and clear the clone disk flag.
If you want to use the clone disk as a standard data disk, you can update the UDID for the disk and clear the clone_disk flag. Use this option if the disk is not really a clone or if you want to use the entire set of clone disks on a separate host and no longer care to maintain the distinction between clone disks and original disks.
Import the disk group with the cloned disks.
Import only the cloned disks, and do not import the original standard disks. Specify the useclonedev option. By default, the clone_disk flag remains on the disks, so you can continue to distinguish between the original disks and the copies.
See Importing the existing disk group with only the cloned disks.
Import the cloned disks as a new disk group.
Import only the cloned disks into a new disk group. VxVM no longer recognized the disks as copies, so the clone_disk flag is removed. The disk group becomes a standard disk group with the copies of the disks. This option only applies if a single consistent set of clone disks exists in the disk group. If more than one disk has the same UDID, VxVM prevents the disk group from being imported. For example, you cannot use the option if two different point-in-time snapshots were created, because the disk group has two copies of each disk.
See Importing the cloned disks as a new standard disk group.
Import a consistent set of cloned disks with tagging
If there are multiple copies of the same disks in a source disk group, because of multiple hardware snapshots, you can use VxVM disk tagging to identify a consistent set of cloned disks. Then you can import the tagged disks.