HP-UX Logical Volume Manager and MirrorDisk/UX Release Notes (September 2008)

Installation Requirements
This section describes the installation requirements for this release.
Required Hardware
LVM and MirrorDisk/UX have no hardware requirements beyond the requirements of the HP-UX
11i v3 operating system. Both products run on all supported HP 9000 and HP Integrity servers.
Required Software
Since LVM is installed with the HP-UX 11i v3 operating environment, there are no software
requirements beyond the requirements of the HP-UX 11i v3 operating system. MirrorDisk/UX
requires the BaseLVM product.
Required Patches
For each of the following subsystems, you can download patches from the following website:
http://www2.itrc.hp.com/service/patch/mainPage.do
Mass Storage Critical Resource Analysis
The Mass Storage Critical Resource Analysis (MS CRA) tool checks for a maximum of two mirror
copies of a logical volume. However, Version 2.x volume groups allow up to five mirror copies.
To enable MS CRA to check for a maximum of five mirror copies of a volume, you must install
the following patch, or a superseding patch:
• PHCO_37562
MS CRA checks for a maximum of 511 physical volumes in a volume group. However, Version
2.1 volume groups allow up to 2048 physical volumes. To enable MS CRA to check for a maximum
of 2048 physical volumes in a volume group, you must install the following patch:
• PHCO_38145
PHCO_38145 supersedes PHCO_37562. Installing PHCO_38145 enables both checks.
mkfs and mkboot Commands
The mkfs and mkboot commands check whether a specified disk device is being used by LVM;
if so, they display an error message. For these commands to correctly check whether a device is
part of a Version 2.x volume group, you must install the following patches:
• PHCO_37328
• PHCO_37340
• PHCO_37394
These patches are delivered in the FEATURE11i bundle.
Serviceguard
To support Version 2.0 volume groups, Serviceguard 11.18 requires the April 2008 patch.
Customers requiring Version 2.1 volume group support or Version 2.x cluster lock disks must
install the Serviceguard September 2008 patch. For more information, see the HP Serviceguard
Version A.11.18 Release Notes.
VxVM 4.1 Commands
Several VxVM 4.1 commands check whether a specified disk device is being used by LVM before
overwriting it. For these commands to correctly check whether a device is part of a Version 2.x
volume group, you must install the following patch:
• PHCO_37836
Installation Requirements 11