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

New Features for A.11.19.01 (July 2009 Patches)
To the existing support for Red Hat 5 and SUSE SLES 10, Serviceguard A.11.19.01 adds
support for SUSE SLES 11.
In addition, Serviceguard A.11.19.01 provides the following new capabilities on all
three platforms. On Red Hat 5 and SUSE SLES 10, these capabilities require the patches
listed under “July 2009 Patches” (page 9).
• Improved support for IPv6, including support for IPv6–only hosts.
See “New Support for IPv6” (page 15).
• Improved support for online package maintenance.
See “Package Maintenance Mode” (page 19).
• Support for VLANs.
See “VLAN Configurations” (page 20).
• New -K option for cmgetconf.
This causes cmgetconf to skip probing of volume groups, allowing the command
to complete faster; the resulting cluster configuration file will not contain a list of
cluster-aware volume groups. See cmgetconf (1m) for more information.
• Improved support for nested mount points.
Serviceguard now ensures that a package will never attempt to mount a nested
directory concurrently with the parent, no matter what
concurrent_mount_and_umount_operations is set to. (In earlier releases, this could
happen if concurrent_mount_and_umount_operations was set to a value greater than
1.)
Features Introduced in A.11.19
The features being introduced in the July 2009 patches are listed in the previous
subsection; see New Features for A.11.19.01 (July 2009 Patches).
The following features were introduced in the initial release of A.11.19:
• Serviceguard now supports the IPv6 hostname address family for all cluster
components, with some restrictions. The July 2009 patches provide further support.
See “New Support for IPv6” (page 15).
• You can now perform maintenance on a running package. The July 2009 patches
provide further support. See“Package Maintenance Mode” (page 19).
• You can configure new types of dependencies between packages. See “New Kinds
of Package Dependency” (page 20).
• 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 21).
14 Serviceguard for Linux Version A.11.19 Release Notes