Managing Serviceguard Fifteenth Edition, reprinted May 2008

Planning and Documenting an HA Cluster
Package Configuration Planning
Chapter 4176
Failover packages can be also configured so that IP addresses switch
from a failed LAN card to a standby LAN card on the same node and the
same physical subnet. To manage this behavior, use the parameter
local_lan_failover_allowed (see page 294) in the package
configuration file. (yes, meaning enabled, is the default.)
Parameters for Configuring EMS Resources
NOTE The default form for parameter names and literal values in the modular
package configuration file is lower case; for legacy packages the default
is upper case. There are no compatibility issues; Serviceguard is
case-insensitive as far as the parameters are concerned. This manual
uses lower case, unless the parameter in question is used only in legacy
packages, or the context refers exclusively to such a package.
All packages switch
following a system reset
(an immediate halt
without a graceful
shutdown) on the node
when a specific service
fails. Halt scripts are not
run.
• service_fail_fast_enabled set to
yes for a specific service.
• auto_run set to yes for all packages.
All packages switch
following a system reset
on the node when any
service fails. An attempt
is first made to reboot the
system prior to the system
reset.
• service_fail_fast_enabled set to
yes for all services.
• auto_run set to yes for all packages.
Table 4-2 Package Failover Behavior (Continued)
Switching Behavior Parameters in Configuration File