HP Serviceguard Version A.11.18 Release Notes, September 2008

These new capabilities significantly reduce the number of maintenance tasks that
require cluster downtime.
See “New Online Networking-Configuration Capabilities” (page 43) and “New Online
Timing-Configuration Capabilities” (page 45).
Serviceguard Manager Available from the System Management Homepage (SMH)
For details, see “What’s in this Release” (page 20) and “About the Serviceguard Manager
SMH Plug-In” (page 53).
NOTE: The earlier, station-management version of Serviceguard Manager is obsolete
as of Serviceguard A.11.18. The last version of Serviceguard that supports that product
is A.11.17 (A.11.17.01 on HP-UX 11i v3).
Version 3.0 or 3.5 of HPVM Required
If you intend to use HP Integrity Virtual Machines (HPVM) with Serviceguard A.11.18,
you must install or upgrade to HPVM 3.0 or 3.5; these are the only versions currently
supported with Serviceguard A.11.18. See “Changes First Introduced in Earlier Releases”
(page 24) for more information about HPVM.
Support for Mixed-OS Clusters (HP–UX 11i v2 and 11i v3)
With some limitations, HP now supports Serviceguard clusters in which some nodes
are running HP-UX 11i v2 and some 11i v3. See “Mixed Clusters” (page 67).
RS232 Heartbeat Obsolete
The current version of Serviceguard does not support RS232 for the cluster heartbeat
(Serviceguard A.11.17 on HP-UX 11i v2 and A.11.16 on HP-UX 11i v1 were the last
versions that did).
A minimum configuration of Serviceguard on HP-UX 11i v2 or 11i v3 needs two network
interface cards for the heartbeat in all cases, using one of the following configurations:
• two heartbeat subnets; or
• one heartbeat subnet with a standby; or
• one heartbeat subnet using APA with two physical ports in hot standby mode or
LAN monitor mode.
To provide the required redundancy for both networking and mass storage connectivity
on servers with fewer than three I/O slots, you may need to use multifunction I/O cards
that contain both networking and mass storage ports.
Token Ring and FDDI Obsolete
Serviceguard A.11.18 does not support Token Ring and FDDI technologies for the
cluster heartbeat and data networks (Serviceguard A.11.17 on HP-UX 11i v2 and A.11.16
Announcements 15