HP Serviceguard Version A.11.19 Release Notes, October 2009

• Support for CFS, VxVM and CVM version 5.0.1 on HP-UX 11i v3 only. See “Support
for Veritas 5.0 on HP-UX 11i v2 and 5.0/5.0.1 on 11i v3” (page 24) for more
information.
• Improved support for IPv6, including support for IPv6–only hosts.
See “New Support for IPv6” (page 26).
• Improved support for online package maintenance.
See “Package Maintenance Mode” (page 30).
• Support for Dynamic Root Disk (DRD) on HP-UX 11i v3.
See “Upgrade Using DRD” (page 63).
• New Serviceguard Manager capabilities; see “Serviceguard Manager” (page 32).
• 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.
• Support for Shared LVM (SLVM) in an HPVM environment only — that is, when
the cluster includes virtual machines (either as nodes or within packages) that are
managed by HPVM.
For more information, see HP Integrity Virtual Machines Installation, Configuration,
and Administration at http://docs.hp.com -> HP Virtual Server
Environment (VSE) -> HP Integrity Virtual Machines. For more
information about using HPVM in a Serviceguard cluster, see “Support for HP
Integrity Virtual Machines (HPVM)” (page 48).
• 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.)
• Support for the target port congestion control capability in HP-UX 11i v3.
As of the March 2009 release, HP-UX 11i v3 provides for port congestion control
via scsimgr. Serviceguard now supports this capability, allowing you to
load-balance IO queues more effectively among Serviceguard cluster nodes.
• Support for parallel resynchronization of LVM volume group sin HP-UX 11i v3 .
When a node goes down in a cluster that has mirrored volume groups, it triggers
a volume group resynchronization. Starting with the September 2009 release of
HP-UX 11i v3, both HP-UX and Serviceguard support parallel resynchronization
of volume groups.
20 Serviceguard Version A.11.19 Release Notes