Administration Guide
The major components of the RSCT monitoring tool are the Resource
Monitoring and Control (RMC) subsystem and certain resource managers.
The resource managers are briefly described in the following sections.
For more detailed information about the resource managers, see IBM RSCT for Linux: Guide and Reference.
The Resource Monitoring and Control (RMC) subsystem monitors and queries
resources. The RMC daemon manages an RMC session and recovers from
communications problems.
The RMC subsystem is used by its clients to monitor the state of system
resources and to send commands to resource managers. The RMC subsystem
acts as a broker between the client processes that use it and the resource
manager processes that control resources.
A resource manager is a process that maps resource and resource-class
abstractions into calls and commands for one or more specific types of
resources. A resource manager is a stand-alone daemon. The
resource manager contains definitions of all resource classes that the
resource manager supports. A resource class definition includes a
description of all attributes, actions, and other characteristics of a
resource class. These resource classes are accessible and their
properties can be manipulated by the user through the command line.
See the man pages or the IBM RSCT for Linux: Technical Reference to learn how
to access the resource classes and manipulate their attributes through the
command line interface.
The following resource managers are provided:
- Audit Log resource manager (IBM.AuditRM)
- Provides a system-wide facility for recording information about the
system's operation, which is particularly useful for tracking subsystems
running in the background. See IBM RSCT for Linux: Guide and Reference for details.
- Domain Management Server resource manager (IBM.DMSRM)
- Manages a set of nodes and node groups that are part of a system
management cluster. This includes monitoring the status of the nodes
and adding, removing, and changing attributes of the nodes and node groups in
the cluster. See Domain Management Server Resource Manager and Managing node and node group information for details.
- Event Response resource manager (IBM.ERRM)
- Provides the ability to take actions in response to conditions occurring
on the system. See IBM RSCT for Linux: Guide and Reference for details.
- File System resource manager (IBM.FSRM)
- Monitors file systems. See IBM RSCT for Linux: Guide and Reference for details.
- Host resource manager (IBM.HostRM)
- Monitors resources related to an individual machine. The types of
values that are provided relate to load (processes, paging space, and memory
usage) and status of the operating system. It also monitors program
activity from initiation until termination. See IBM RSCT for Linux: Guide and Reference for details.
- Sensor resource manager (IBM.SensorRM)
- Provides a means to extend RMC via scripts. See IBM RSCT for Linux: Guide and Reference for
details.
[ Top of Page | Previous Page | Next Page | Table of Contents | Index ]