HP Serviceguard Version A.11.20 Release Notes, August 2011

IMPORTANT: If your storage devices are configured with only a single path, or you have disabled
multipathing, you should disable PCI Error Recovery; otherwise Serviceguard may not detect when
connectivity is lost and cause a failover.
For instructions on using the pci_eh_enable parameter to disable PCI Error Recovery, see the
“Tunable Kernel Parameters” section of the latest edition of the PCI Error Recovery Product Note
which you can find at http://www.hp.com/go/hpux-networking-docs —> HP-UX 11i v3
Networking Software.
Online Replacement of LAN Cards Requires Patch
Before you can replace a LAN card online (without bringing down the cluster) as described under
“Replacing LAN or Fibre Channel Cards” in Chapter 8 of Managing Serviceguard, you must apply
patch PHNE_35894 or a later cumulative patch. See “Patches for this Version” (page 46) and
“QXCR1000575890: OLR of a LAN Card in SG cluster fails on HP-UX 11i v3” (page 47).
For more information about replacing interface cards online, see the Interface Card OL* Support
Guide for HP-UX 11i v3, at http://www.hp.com/go/hpux-core-docs -> HP-UX 11i v3 ->
User guide.
What’s in this Release
This release of Serviceguard A.11.20 runs only on 11i v3 (see “Serviceguard on HP-UX 11i v3”
(page 14)) and adds new functionality.
See the subsections that follow for details; see also the “Announcements” (page 7). For information
about documentation, see “Documents for This Version” (page 33).
New Features for A.11.20 August 2011 Patches
Serviceguard A.11.20, with the patches listed under “August 2011 Patches” (page 7), provides
the following new capabilities:
• “Integration of System Fault Management or Custom Defined Monitor in Serviceguard Using
Generic Resources” (page 15)
• Enhancement to modular CFS packages (See “Modular CFS Packages for Reducing Package
Usage” (page 16))
• New Serviceguard Manager capabilities in B.03.20 (See “Serviceguard Manager” (page 24)
)
New Features for A.11.20
• New commands (and equivalent capabilities with Serviceguard Manager) provide a quick
and easy way to configure and deploy a Serviceguard cluster.
See “Easy Deployment” (page 17).
• A new capability in Serviceguard allows a package's applications to remain running
(unmonitored) while you do maintenance on the node or cluster on which the package is
running.
See “Halting a Node or the Cluster while Keeping Packages Running (Live Application Detach)”
(page 18).
• A new type of device file allows you to deploy a set of persistent device special files that is
consistent across the cluster, eliminating to risk of name-space collisions amongst the cluster
nodes. These new device special files are called cluster device special files or cDSFs.
See “Cluster-wide Device Special Files (cDSFs)” (page 19).
What’s in this Release 13