Managing Serviceguard Nineteenth Edition, Reprinted June 2011

Table 14 Types of Changes to Packages (continued)
Required Package StateChange to the Package
Package can be running, but should not be starting.Change run script contents: legacy
package
Timing problems may occur if the script is changed while the package is starting.
Package can be running, but should not be halting.Change halt script contents: legacy
package
Timing problems may occur if the script is changed while the package is halting.
Package can be running.Add or delete a service: modular
package
Serviceguard treats any change to service_name or service_cmd as deleting
the existing service and adding a new one, meaning that the existing service is
halted.
Package must not be running.Add or delete a service: legacy
package
Package can be running.Change service_restart:
modular package
Serviceguard will not allow the change if the new value is less than the current
restart count. (You can use cmmodpkg -R<service_name> <package> to
reset the restart count if you need to.)
Package must not be running.Change SERVICE_RESTART:
legacy package
Package must not be running. (Also applies to cross-subnet configurations.)Add or remove a SUBNET (in
control script): legacy package
Package can be running.Add or remove an ip_subnet:
modular package
See “ip_subnet” (page 231) for important information. Serviceguard will reject
the change if you are trying to add an ip_subnet that is not configured on all
the nodes on the package's node_name list.
Package can be running.Add or remove an ip_address:
modular package
See “ip_subnet” (page 231) and “ip_address” (page 232) for important
information. Serviceguard will reject the change if you are trying to add an
ip_address that cannot be configured on the specified ip_subnet, or is on
a subnet that is not configured on all the nodes on the package's node_name
list.
Package must not be running. (Also applies to cross-subnet configurations.)Add or remove an IP (in control
script): legacy package
Package can be running.Add or delete nodes from
package’s ip_subnet_node list
Serviceguard will reject the change if you are trying to add a node on which the
specified ip_subnet is not configured.
in cross-subnet configurations
(page 231)): modular package
Package must not be running.Add, delete, or change
cluster_interconnect_subnet
Package can be running.Add or remove monitoring for a
subnet: monitored_subnet for a
Serviceguard will not allow the change if the subnet being added is down, as
that would cause the running package to fail.
modular package or SUBNET (in
the package configuration file) for
a legacy package
Package can be running.Change
local_lan_failover_allowed
Serviceguard will not allow the change if it would cause the package to fail.
Package can be running.Add or remove a resource: modular
package
Serviceguard will not allow the change if it would cause the package to fail. In
addition, Serviceguard will reject the change if the resource is not UP within about
30 seconds. Multiple changes that take longer than this should be done
302 Cluster and Package Maintenance