HP Serviceguard for Linux Version A.11.19 Release Notes, April 2009

High Availability Consulting Services
Because Serviceguard configurations can be complex to configure and maintain, HP
recommends that you use its high availability consulting services to ensure a smooth
installation and rollout; contact your HP representative for more information. You
should also work with your HP representative to ensure that you have the latest
firmware revisions for disk drives, disk controllers, LAN controllers, and other
hardware.
What’s in this Release
This release of Serviceguard A.11.19 runs on Red Hat 5 and SUSE SLES 10, and adds
the new features listed below.
See the subsections that follow for details; see also the “Announcements” (page 9).
For information about documentation, see “What Documents are Available for This
Version ” (page 30).
• You can configure new types of dependencies between packages. See “New Kinds
of Package Dependency” (page 15).
• You can configure package weights and node capacities, allowing you to control
broadly which packages can run simultaneously on a given node. See “About
Package Weights” (page 15).
• Other minor new package features are listed under “Other Package Changes”
(page 24).
• Serviceguard now supports the IPv6 hostname address family for all cluster
components, with some restrictions. See “New Support for IPv6” (page 16).
• Serviceguard can now monitor subnets at the IP level, as well as the link level. See
“About the IP Monitor” (page 16).
• You can now make configuration changes while the cluster is running, particularly
in regard to the cluster lock, that were not allowed online in previous releases, or
were restricted; see “New Online Cluster Configuration Capabilities” (page 17).
• In the case of modular packages, you can now make most package configuration
changes while the package is running, and you can also make more changes to
legacy packages online. See “New Online Package Configuration Capabilities”
(page 17). (For information about modular and legacy packages, see Chapter 6 of
the latest version of Managing Serviceguard.)
• You can now preview the effects both of individual commands and of large-scale
cluster changes; see “New Preview Capabilities” (page 17).
• You can now partially start a modular package so as to perform maintenance on
the modules that are not started; see “About Partial-Startup Maintenance Mode”
(page 17).
• A new utility allows you to monitor applications running inside Virtual Machine
(VM) guests. See “About cmappmgr” (page 18).
What’s in this Release 13