HP Serviceguard Version A.11.19 Release Notes, March 2009

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 in the High Availability collection on docs.hp.com.
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. See “Patches for this Version”
(page 57) and “QXCR1000575890: OLR of a LAN Card in SG cluster fails on HP-UX
11i v3” (page 58).
For more information about replacing interface cards online, see the Interface Card OL*
Support Guide for HP-UX 11i v3, at http://docs.hp.com -> High Availability
-> System Administration.
Features First Introduced in Serviceguard version A.11.18 (September 2008 Patch)
Some of the features discussed in these Release Notes were originally introduced in a
patch to Serviceguard version A.11.18. See the following for more information about
the features in question:
• “About Cross-Subnet Configurations” (page 33)
• “About vgchange -T” (page 37)
• “Migrating Legacy to Modular Packages” (page 31)
• “Other Package Changes First Introduced in Serviceguard A.11.18 Patches”
(page 32)
• “About LVM 2.0” (page 38)
• “About the VxVM Volume Monitor” (page 35)
• “Alternate Quorum Server Subnet” (page 37)
• “Support for Veritas 5.0 on HP-UX 11i v2 and 11i v3” (page 39)
• “Serviceguard Features Available Only on HP-UX 11i v3” (page 22)
What’s in this Release
This release of Serviceguard A.11.19 runs on both HP-UX 11i v2 and 11i v3, and adds
new functionality. There are some platform-dependent differences.
See the subsections that follow for details; see also the “Announcements” (page 11).
For information about documentation, see “What Documents are Available for This
Version ” (page 43).
What’s in this Release 19