Serviceguard Extension for RAC Version A.11.20 Release Notes, April 2011

◦ Support for package halt reason feature
◦ Support for package description feature
• Support for a maximum of 16 nodes in a cluster
• Support for a maximum of four nodes over distances up to 100 kilometers in an
extended-distance cluster with CFS/CVM 5.0, 5.0.1, 5.1 SP1, and LVM 2.1
The previous maximum in this configuration was two nodes.
• Hostnames for SGeRAC cluster nodes can be up to 39 characters (bytes) long (The former
limit was 31 characters).
NOTE: The SLVM subsystem on HP-UX 11i v3 only supports hostnames up to 31 characters
long in an SGeRAC configuration. The cluster node name associated with a SLVM volume
group will be shown in the vgdisplay output as the first 30 characters plus an asterisk (*)
if the hostname is longer than 31 characters.
• The contents of the README has been moved to the Using Serviceguard Extension for RAC
user guide (published March 2011 or later). Go to www.hp.com/go/
hpux-serviceguard-docs, and then click HP Serviceguard Extension for RAC.
• Support for Serviceguard A.11.20 Easy Deployment commands.
NOTE: Serviceguard A.11.20 patch PHSS_41628 should be installed.
Support for Logical Volume Manager Version 2.0 and later
Logical Volume Manager (LVM) 2.0 volume groups that remove some of the limitations imposed
by LVM 1.0 volume groups can be used on systems running HP-UX 11i v3 0803 Fusion or later
with LVM version B.11.31.0809 and Serviceguard and SGeRAC A.11.20.
NOTE: You are not required to move to LVM 2.0 volume groups. If you do use LVM 2.0 volume
groups, you can manage them with the same commands as before. You may need to make minor
changes to any scripts you use that parse the output of lvdisplay, vgdisplay, pvdisplay
or vgscan, as the output of these commands has changed slightly. In addition, new options are
available for some commands.
For more information, see the white paper LVM Version 2.0 Volume Groups in HP-UX 11i v3 at
www.hp.com/go/hpux-core-docs —> HP-UX 11i v3 —> white papers. For information
about all other aspects of LVM on HP-UX 11i v3, see the HP-UX System Administrator's Guide:
Logical Volume Management HP-UX 11i Version 3 at www.hp.com/go/hpux-core-docs —>
HP-UX 11i v3 —> User guide.
Support for Multi-Node Online Configuration (MORE)—LVM Version 2.1 Volume
Groups Only
Multi Node Online Reconfiguration (MORE), introduced in the HP-UX 11i v3 September 2009
release, allows you to change the configuration of LVM Version 2.1 volume groups while the
volume groups are activated in shared mode on any number of cluster nodes. Applications can
continue to use these volume groups without interruption while the volume groups are being
reconfigured.
For more information, see the white paper SLVM Online Volume Reconfiguration at www.hp.com/
go/hpux-core-docs —> HP-UX 11i v3 —> white papers.
What’s in this Version 11