HP-UX 11i v3 Installation and Update Guide, March 2012

NOTE: You can use Dynamic Root Disk (DRD) with Update-UX when you have disk space
limitations that would otherwise prevent you from updating your system. By creating a clone,
changing volume sizes, and then booting the clone, you can complete the update on the booted
clone, with the original system as your backup. For more information, see the white paper “Dynamic
Root Disk: Quick Start & Best Practices” (http://www.hp.com/go/drd-docs).
In addition to facilitating updates, DRD has other uses, all of which can reduce downtime. These
include system recovery, 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.
NOTE: Starting with the HP-UX 11i v3 OE Update release for March 2011, the maximum size
of the boot disk or root volume group has been increased from 1 TB to 2 TB for HP Integrity systems.
(The HP 9000 systems have supported the boot disk or root volume group up to the 2 TB maximum
size since the initial HP-UX 11i v3 OE release in February 2007.) The install files on the OE media
for March 2011 (and later releases) will support cold-install to larger (up to 2 TB) sizes for the boot
disk or root volume group.
Also note that the Ignite-UX product from March 2011 (or later versions) is required for >1 TB
support of install and recovery with HP Integrity systems. The attempted use of disks, physical
volumes, or logical volumes >2 TB size for HP-UX boot devices will result in errors or failures. HP-UX
11i v3 supports data storage with a maximum size of 16 TB for physical volumes and a maximum
size of 256 TB for logical volumes.
For information about modifying your partition/file system, see the HP-UX System Administrator’s
Guide (http://www.hp.com/go/hpux-core-docs-11iv3).
The list below provides additional hints and information to help you determine your disk needs for
HP-UX 11i v3. If you need more disk space, be sure to order the equipment and plan on installing
it after backing up your current system.
• Record the hardware path to the DVD drive.
• Develop a clear configuration plan, including:
file system sizes◦
◦ Swap space size
◦ Dump device
◦ Disk and file system parameters
◦ Mirroring information
• If installing application programs other than those supplied within an HP-UX 11i v3 Operating
Environment (OE), consider the vendor’s size recommendations.
• When planning disk space, see the HP-UX System Administrator’s Guide. Composed of five
volumes, this guide is available on the Instant Information DVD and at http://www.hp.com/
go/hpux-core-docs-11iv3.
Disk space requirements for a cold-install
The disk space requirements listed in Table 3 (page 12) are estimates only. Requirements might
vary depending on the size of your disk, your type of server, and your Operating Environment.
HP strongly advises you install all OS content on one disk, except for mirrors. That disk must be at
least 20GB.
Note the following:
• The table shows recommended minimums.
• Ignite-UX will enforce absolute minimums, but they are smaller than recommended sizes in
some cases.
Determining disk space requirements 11