Dynamic Root Disk A.3.13* Administrator's Guide HP-UX 11i v2, HP-UX 11i v3 (766142-001, March 2014)

overwritten. The -x overwrite=true allows a disk to
be overwritten, even if it contains boot, LVM, or VxVM
records. Note that DRD does not overwrite a disk associated
with an active LVM volume group or VxVM disk group,
regardless of the setting of the overwrite option. If a
previously created clone is mounted, use the drd umount
command to unmount it before attempting to create a new
clone on the disk.
-x preview={true|false} If true, run this command in preview mode only. That is,
complete the analysis phase and exit; no changes are
committed to disk. This option has the same effect as
specifying -p on the command line. The default is false.
This option is available on every DRD command except drd
runcmd.
-x reboot={true|false} If true, specifies the system is rebooted at the successful
completion of a drd activate operation. The default is
false.
-x verbosity=3 (Default.) Specifies the level of stdout/stderr verboseness. Replace 3
with the following values:
0 Only ERRORS and the starting/ending BANNER messages.
1 Adds WARNING messages.
2 Adds NOTE messages.
3 (Default) Adds INFO messages (informational messages
preceded by the * character.)
4 Adds verbose INFO messages.
5 Adds additional detailed INFO messages.
The drd rehost command
The drd-rehost(1M) command copies new host information to EFI/HPUX/SYSINFO.TXT for
processing by auto_parms during the boot of the disk.
The drd rehost command considerations are:
• Patches to the auto_parms utility are needed to process the SYSINFO.TXT file during the
boot of the disk. Please refer to the Download DRD and Patches webpage at https://
h20392.www2.hp.com/portal/swdepot/displayInstallInfo.do?
productNumber=DynRootDisk#download for information about the appropriate patches to
install.
• A system administrator can execute the drd rehost command after cloning a system image
to setup the clone to run on another system.
• The initial implementation of drd rehost only supports rehosting of an LVM-managed root
volume group on an Integrity virtual machine to another Integrity virtual machine, or an
LVM-managed root volume group on a Blade with Virtual Connect I/O to another such Blade.
• The format of the sysinfo file is defined in sysinfo(4), which is provided by a patch documented
at the Download DRD and Patches webpage at https://h20392.www2.hp.com/portal/
swdepot/displayInstallInfo.do?productNumber=DynRootDisk#download. Only files conforming
to sysinfo(4) can be used for rehosting.
• The disk to be rehosted must be a bootable disk and may be specified as the argument of the
-t option. If no -t option is specified, the disk to be rehosted is the inactive system image.
The inactive system image is either a clone created by the drd clone command, or the
original booted image that was cloned, whichever is not currently booted.
• If no -t option is specified, the inactive image chosen is checked to ensure that it is managed
by LVM. However, if a disk is specified using the -t option, the volume management of the
disk is not checked.
• If a preview operation is run—by specifying the -p option—the syntax of the system information
file is checked, but the file is not copied to the target.
The drd rehost command syntax is:
DRD command syntax 51