Using DRD for Limited Disk Availability Checks

You can use drd clone with the -p option to get minimal availability information about a disk. (See the following section for an example.)

The drd clone command performs the following checks:

If the disk is currently in use by the LVM Manager, it is rejected by the drd clone operation.
If the disk is currently in use by the VxVM Manager, it will be accepted only if the following two conditions are met:
- The disk is an inactive image managed by DRD
- The extended option -x overwrite=true is specified on the drd clone command
If the disk is not currently in use by LVM or VxVM, but contains LVM, VxVM, or boot records, it is only accepted as a drd clone target if -x overwrite=true is specified on the drd clone command.




	NOTE: A selected target disk will not be overwritten if it is part of the root volume. However, the drd clone command will overwrite swap or raw data disks because it does not detect this type of usage. For example, any raw disks in use by databases would be overwritten if given as the target clone disk.

Technical documentation