Dynamic Root Disk Frequently Asked Questions (766143-001, March 2014)

drd clone -p -v -t path_to_block_DSF
Where path_to_block_DSF is of the form:
 HP-UX 11i v2: /dev/disk/cXtXdX
 HP-UX 11i v3: /dev/disk/diskX
The preview operation includes the disk space analysis needed to see if the target disk is
sufficiently large.
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2-4. Q:
If I am running multiple drd runcmd operations, can I avoid mounting and
unmounting the inactive system image for each runcmd execution?
A:
You can avoid multiple mounts and unmounts by using drd mount to mount the
inactive system image before the first runcmd operation and drd umount to unmount
the inactive system image after the last runcmd operation. When drd runcmd finds the
file systems in the clone already mounted, it does not unmount them (nor will it export
the volume group) at the completion of the runcmd operation.
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2-5. Q:
Does the DRD clone operation verify that the target is not in use or part of another
VG? Once the root disk is cloned, is there anything in the operating system that
prevents the non-active target from being reused? How can inactive targets be
identified?
A:
If the disk is currently in use by another volume group that is visible on the system, the
disk will not be used. If, on the other hand, the disk contains LVM, VxVM, or boot
records but is not in use on the system, you must use the -x overwrite option to tell
DRD to overwrite the disk. Already-created clones will contain boot records; a preview
using the drd mount or drd activate commands will show the disk that is currently in
use as an inactive system image.
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2-6. Q:
Can I vgimport the target disk as /dev/vgtmp?
A:
The drd mount command will vgimport the target disk, vgchange it to make it active,
and mount all the file systems in the cloned volume group. However, these operations
do not use the lvmtab on the clone itself. After booting the clone, you can also mount
the original system image. (You can also vgimport the clone manually, but it is much
easier to use the drd mount command.).
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2-7. Q:
Can DRD show whether DRD is configured or not configured?
A:
You can run the drd status command to determine whether a clone has been created.
The drd status command output shows, among other data, the disk that was cloned and
the target disk of the drd clone operation. For further information on the drd status