Installing and Managing HP-UX on Boot Disks Greater than 2TB with LVM Layout

5
to boot failure. For a 1 TB swap, ensure that the system has at least 32 GB of RAM
for a successful boot-up. While this configuration will boot up, it will run out of
physical memory faster than it would if the admin had configured less swap.
Unless there are definite needs, avoid increasing the swap size in order to utilize
the free space on the boot disk.
STEP 5: Remaining installation steps are the same as those for smaller disks. Refer to Ignite-UX Guide for
installation procedure.
Upgrading existing HP-UX instances to support boot disks of
size greater than 2 TB
When you upgrade HP-UX installations to 11i v3 March 2013 Update release or later with update-ux
command, it enables the support for boot disks of size greater than 2TB. You can then use the feature in
various ways like:
• Administering (usage of LVM commands, DRD tool etc) other boot disks of size greater than 2 TB in
the system
• Adding boot disks of size greater than 2 TB to the root or other bootable Volume groups. However,
note that the bootable volume group must contain March 2013 or later release of HP-UX prior to
adding such disks.
Administration of boot disks of size > 2 TB
LVM Administration
There is no change in LVM commands interfaces when administering boot disks of size > 2 TB.
Administration of boot disks bigger than 2 TB in size can be done in the same way as smaller boot disks
are done. However there are a few compatibility constraints that are discussed in the Compatibility section.
From March 2013 release, LVM allows you to configure system Logical volumes (Root/Boot/Swap/Dump
Logical Volumes) up to the size 16 TB via lvlnboot(1M) command. However, the system volumes configured
during Ignite-UX cold installation are limited to smaller values based on other system considerations and
limitations. The limits are shown in table 2 above.
Warning
On a system that is booting off a 2.x version of LVM volume group, as in the case
of a boot disk greater than 2 TB in size, the lvmp kernel module should not be
unloaded. It will result in system boot failures.