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

For more information on using make_tape_recovery, see the make_tape_recovery( 1M) manpage
on an Ignite-UX server or the Ignite-UX Administration Guide (http://www.hp.com/go/
ignite-ux-docs).
Choosing drd clone
The drd clone command allows you to create an OS recovery image, referred to as an inactive
clone, on a free internal or SAN disk. For recovery purposes, all you need to run is
drd clone –t target_dsf
where target_dsf is the device special file of the spare disk.
In the event that the update to HP-UX 11i v3 on the active system does not go as planned, you
can activate and boot the HP-UX 11i v2 clone in minutes by entering:
drd activate –x reboot=true
If you do activate and boot the HP-UX 11i v2 clone, then decide to re-activate the HP-UX 11i v3
image on the original disk, you can use the same drd activate command noted above, as the
use of this command will toggle between the original disk and the clone disk.
NOTE: Once you have updated from 11i v2 to 11i v3 on the active system image, you can go
back and forth between the inactive 11i v2 image and the updated 11i v3 image by ensuring the
following:
• When an HP-UX 11i v2 system is booted and HP-UX 11i v3 is installed on the inactive image,
you should not use any sw* commands with drd runcmd. Use of this operation would
invoke 11i v3 libraries and executables, which can make system calls not supported on the
11i v2 kernel.
• When an HP-UX 11i v3 system is booted and HP-UX 11i v2 is installed on the inactive image,
you can run drd runcmd swlist or drd runcmd swverify; however, you cannot run
any other sw* commands.
The drd clone contains all files and directories in the root volume, and thus has all the components
that are essential to bringing up a functional system.
In addition to system recovery, DRD has other uses, all of which can reduce downtime. These
include system maintenance, patching, testing, and provisioning. See “Reducing downtime using
Dynamic Root Disk” (page 29) for more information, including links to documentation and a
website.
Part II: Backing up your data files
Depending on your system backup needs and your configuration, there are a number of different
backup methods from which to choose. Two possible backup methods are as follows:
• HP Data Protector
• HP-UX fbackup/frecover utilities
Choosing HP Data Protector for backup
If you are backing up large numbers of systems, the HP Data Protector software product can be
particularly useful. HP Data Protector is faster than other backup methods and provides for
unattended backup as well. It allows you to efficiently centralize and administer backup
procedures.
Using HP Data Protector involves setting up a database server and running software that directs
and records the backup process for clients. For more information, see the HP Data Protector
website (http://hp.com/go/dataprotector).
24 Before you begin