Serviceguard Extension for RAC Version A.11.19 Release Notes (May 2010)

For information about capabilities available only on HP-UX 11i v3, see “Announcements for HP-UX
11i v3” on page 5 .
Hardware Dependencies
Oracle 11gR2 is supported only on HP Integrity servers running HP-UX 11i v3.
Serviceguard Features not yet Supported
Serviceguard cross-subnet configurations are currently not supported with SGeRAC outside of Site
Aware Disaster Tolerant Architecture (SADTA).
Mixed Clusters not Supported
All nodes in a SGeRAC cluster must be of the same hardware architecture and running the same
version of the same operating system. For example, a single cluster cannot include both HP 9000
and HP Integrity nodes, or run both HP-UX 11i v2 and 11i v3.
April 2010 Patches
—PHSS_40885 for SGeRAC A.11.19 on HP-UX 11i v2
—PHSS_40886 for SGeRAC A.11.19 on HP-UX 11i v3
The patches enable the following new features:
• “Support for Oracle 11gR2 RAC with SLVM and ASM” on page 10
• “Support for new ASM DG Packages (included in the April 2010 patches)” on page 11
Announcements for HP-UX 11i v3
• SGeRAC A.11.19 on HP-UX 11i v3 supports LVM version 1.0, 2.0, or later.
• SGeRAC A.11.19 on HP-UX 11i v3 supports Dynamic Root Disk (DRD). See “Upgrade Using
DRD” on page 11.
In addition, HP-UX 11i v3 itself introduces important improvements, particularly in regard to the I/O
subsystem, as described below.
About Device Special Files (DSFs)
HP-UX releases up to and including 11i v2, use a naming convention for device files that encodes
their hardware path. For example, a device file named /dev/dsk/c3t15d0 would indicate SCSI
controller instance 3, SCSI target 15, and SCSI LUN 0. HP-UX 11i v3 introduces a new nomenclature
for device files, known as agile addressing (sometimes also called persistent LUN binding). Under the
agile addressing convention, the hardware path name is no longer encoded in a storage device’s
name; instead, each device file name reflects a unique instance number, for example /dev/[r]disk/
disk3, that does not need to change when the hardware path does.
Agile addressing is the default on new 11i v3 installations, but the I/O subsystem still recognizes
pre-11i v3 device files, which as of 11i v3 are referred to as legacy device files. Device files using
the new nomenclature are called persistent device files. When you upgrade to HP-UX 11i v3, a set
of new, persistent device files is created, but the existing, legacy device files are left intact and by
default will continue to be used by HP-UX and Serviceguard.
Serviceguard Extension for RAC Version A.11.19 Release Notes 5