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

drd clone
drd deactivate
drd mount
drd rehost
drd runcmd
drd status
drd sync
drd umount
drd unrehost
In addition, the drd runcmd command allows you to run specific Software Distributor
(SD) commands on the inactive system image only. These SD commands are:
swinstall
swremove
swlist
swmodify
swverify
swjob
Two other commands can be executed by the drd runcmd command.
 The view command can be used to view logs produced by commands that were
executed by drd runcmd.
 The kctune command can be used to modify kernel parameters.
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1-6. Q:
Are instance numbers changed when the clone is booted?
A:
The ioconfig file and the entire /dev directory are copied by the DRD clone
operation, so instance numbers will not change when the clone is booted. (On a system
with an LVM root, the LVM information is modified so that the booted volume group
is always vg00. The /dev/vg00 directory is removed from the clone and the
/dev/drd00 directory is renamed /dev/vg00.)
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1-7. Q:
Can the clone be mirrored?
A:
Use the drd clone -x mirror_disk option to mirror the clone when you create it. Also
see the Dynamic Root Disk and MirrorDisk/UX white paper at
http://www.hp.com/go/drd-docs that explains how you can mirror the clone after the
clone has been created.
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