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HP UX B6941-90001 User Manual

Page 502

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502

Appendix B

Administration of MC/ServiceGuard

Introducing MC/ServiceGuard

package. If a service fails while a package is running,
the package may be halted and restarted on an
Adoptive Node.

MC/Service
Guard Daemon

A daemon that monitors the state of the SG cluster, all
nodes in the cluster, all network resources, and all
services. The daemon reacts to failures and transfers
control of packages. It also runs the package control
script.

Original Node

The node on which the package is running before SG
initiates a transfer of control.

Adoptive Node

A node to which SG can transfer control of a package. A
package may have several adoptive nodes. Note that
you can define packages that only run on a subset of all
SG cluster nodes.

Adoptable
Package

A package for which the control can be transferred to
an adoptive node by SG. You can specify if and to where
you want control of a package to be transferred in the
event of failure or if you want the package to fail.

Package
Custody

This is the node on which the package is currently
running.