Administrator's Guide

• 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 rehost [-?] [-p] -f system_information_file [-q] -t
device_special_file [-v] [-x extended option=value] [-x -?] [-X
option_file]
Options
-?
Displays the usage message for a DRD command. This option cannot be used with other options.
-p
Sets preview mode. When run with the -p option, a DRD command performs analysis without
running the command and reports any errors.
-f system_information_file
Specifies the file containing the system information (hostname, IP address, network information,
etc.) to be copied to EFI/HPUX/SYSINFO.TXT on the disk specified by the -t option. See
sysinfo(4) for the syntax of this file. If not specified, the file defaults to /etc/opt/drd/
default_sysinfo_file.
-q
Decreases the verbosity level by one each time it is specified. For example, -qq will reduce
the verbosity from the default value of 4 to 2. If both -x verbosity=5 and -qqq are included
on the command line, the effective verbosity is 2. The minimum verbosity level is 0. (See also
the -x verbosity option.)
-t device_special_file
Specifies the block device special file of a single writeable physical disk. The file specified by
the -f option will be written to EFI/HPUX/SYSINFO.TXT in the EFI partition of this disk. If
no target is specified, the inactive system image is used as a target.
-v
Increases the verbosity level by one each time it is specified. For example, -v will increase the
effective verbosity from the default value of 4 to 5. If both -x verbosity=1 and -vv are
included on the command line, the effective verbosity is 3. The maximum verbosity level is 5.
(See also the -x verbosity option.)
58 DRD commands