HP-UX 11i v3 Installation and Update Guide, September 2010

Part I: Creating an operating system recovery image
To protect your system data, create an operating system (OS) recovery image:
• The Ignite-UX server has two commands you can use to create an OS recovery image:
— make_net_recovery
◦ Create an OS recovery image and store it on an Ignite-UX server on the network.
◦ Works on any system that has Ignite-UX installed.
◦ See “Choosing make_net_recovery” (page 23).
— make_tape_recovery
◦ Create an OS recovery image on a bootable recovery tape.
◦ Works on any system that has a local tape drive and Ignite-UX installed.
◦ Also works on any system without an Ignite-UX server.
◦ See “Choosing make_tape_recovery” (page 23).
NOTE: To include the entire contents of the root volume group instead of just a minimal OS,
HP recommends using the-A option to both make_net_recovery and make_tape_recovery.
• The Dynamic Root Disk (DRD) toolset can also be used to create a clone of the current root
volume group. In the event of a failed upgrade or issues after cold-installing, you can boot
from the clone to quickly recover the system:
— drd clone
◦ Create an OS image on a free local or SAN disk.
◦ Works on any system that has the DRD toolset installed.
◦ See “Choosing drd clone” (page 24).
IMPORTANT: The Ignite-UX recovery tools and DRD toolset are intended to be used in
conjunction with data recovery applications to create a means of total system recovery. HP
recommends against using Ignite-UX or DRD as backup solutions. They should only be used as
part of a recovery or availability strategy.
Choosing make_net_recovery
The Ignite-UX product has the make_net_recovery command to create an OS recovery image
on another system on the network. The image created by make_net_recovery is specific to
the system it was created for and its identity includes host name, IP address, networking
information, and so on. In the event of root disk failure, you use the Ignite-UX server to restore
the system by installing the OS recovery image.
The contents of the OS recovery image always includes all files and directories that are essential
to bringing up a functional system. This essential list is predefined by make_net_recovery.
For more information on using make_net_recovery, see the make_net_recovery(1M) manpage
or the Ignite-UX Administration Guide (http://www.hp.com/go/ignite-ux-docs).
Choosing make_tape_recovery
The Ignite-UX product’s make_tape_recovery command creates a bootable OS recovery tape
for a system while it is up and running. When a system has a logical volume layout, the recovery
tape (by default) only includes data from the root volume group, plus data from any non-root
volume group containing the /usr directory.
You can run make_tape_recovery locally on the system from which you are trying to make
an OS recovery tape. Data that is not in the root volume group must be backed up and recovered
using normal backup utilities.
Backing up your system 23