HP-UX 11i June 2004 Release Notes

HP-UX 11i Version 1 Operating Environment Applications
HP-UX 11i v1 Mission Critical Operating Environment (MCOE)
Chapter 6
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HP Serviceguard
HP Serviceguard (formerly known as Multi-Computer/ServiceGuard, or
MC/ServiceGuard) is a specialized facility for protecting mission critical applications
from a wide variety of hardware and software failures.
Also available are the following products, both downloadable from
http://software.hp.com or from the Serviceguard Distributed Components CD:
• HP Serviceguard Manager is a graphical user interface (GUI) for configuring,
displaying, and managing HP Serviceguard and Serviceguard Extension for RAC
clusters.
• HP Serviceguard Quorum Server (QS) provides arbitration services for Serviceguard
clusters when a cluster partition is discovered. Should equal-sized groups of nodes
become separated from each other, QS allows one group to achieve quorum and form
the cluster, while the other group is denied quorum and the ability to create a cluster.
Serviceguard Extension for RAC (SGeRAC, formerly known as ServiceGuard OPS
Edition or MC/LockManager) is a specialized facility that provides the framework for
using Oracle 9i Real Application Cluster software on HP 9000 systems. Starting with
version A.11.15, Serviceguard A.11.15 (or newer) must be installed as a prerequisite
product for SGeRAC. Thus SGeRAC can now coexist with the Mission Critical OE. For
more information, see Serviceguard Extension for Real Application Cluster (RAC)
Version A.11.15 Release Notes available at http://docs.hp.com.
updated for June
2004
• HP Serviceguard has been updated to version A.11.16 with new functionality, defect
repairs, and support for future new hardware configurations. Highlights of the
release are as follows:
— A new method for non-root access for Serviceguard commands, both on command
line and with the graphical interface. Non-root access to view or to issue
administration commands is now defined in the new Access Control Policy
parameter in the configuration files. If a node has a cluster configuration file,
Serviceguard will no longer look at the cmclnodelist or .rosts files.
— Clusters and packages can now be configured through Serviceguard’s graphical
user interface. The Serviceguard Manager graphical user interface now replaces
all the functionality of the SAM Cluster Tool, which has been obsoleted and is no
longer available in SAM.
— Another new parameter, Network Failure Detection, gives users two choices
about how a network monitor will declare a LAN card down.
— A new auxiliary product is available that works with Serviceguard version 11.16.
The Serviceguard Extension for Faster Failover can be purchased through
http://software.hp.com. The Release Notes are posted at
http://docs.hp.com/hpux/ha. At the same location, there is a new technical
white paper, “Failover Optimization,” that can tell you how to cut failover time,
with or without the purchased product.