HP Serviceguard for Linux Version A.11.19 Release Notes, April 2009

IMPORTANT: The package must be down and disabled before you can place it it in,
or take it out, of partial-startup maintenance mode.
For more information, see “Maintaining a Package: Partial-Startup Maintenance Mode”
in Chapter 7 of Managing Serviceguard for Linux.
Other Package Changes
NOTE: For information about legacy and modular packages, see Chapter 6 of Managing
Serviceguard.
Serviceguard A.11.19 adds the following package features not discussed elsewhere in
these Release Notes:
• A new multi_node_all module includes all the parameters that can be
configured for multi-node packages.
• A new package_description parameter allows you to indicate what application the
package runs.
See “Package Modules and Parameters” in Chapter 6 of Managing Serviceguard for more
information.
About cmappmgr
cmappmgr is a utility that allows you launch and monitor processes on Xen Virtual
Machine (VM) guest nodes. It is platform-independent, supporting HP-UX, Linux, and
Windows VMs.
cmappmgr on the host communicates via SSL connections with a lightweight module
on the VM guest, cmappserver. cmappmgr exits when the process that is being
monitored does. It can be run as a service in a Serviceguard package, or invoked from
an external script in a modular package or from a run and halt script in a legacy package.
(See Chapter 6 of Managing Serviceguard for Linux for information about modular and
legacy packages.)
cmappmgr is packaged as a Serviceguard command. cmappserver is packaged as a
depot, rpm, or exe (for HP-UX, Linux, or Windows respectively) which can be copied
from the host to a VM guest and installed there. It is delivered on the Serviceguard for
Linux CD.
For more information see the white paper Designing High Availability Solutions with HP
Serviceguard and HP Integrity Virtual Machines, which you can find on docs.hp.com
under High Availability -> Serviceguard —> White Papers.
About Persistent Reservations
As of A.11.19, Serviceguard for Linux packages use Persistent Reservations (PR)
wherever possible to control access to LUNs. Persistent Reservations, defined by the
18 Serviceguard for Linux Version A.11.19 Release Notes