HP WBEM Services for HP-UX and Linux System Administrator's Guide

Overview of HP WBEM Services
HP WBEM Services Architecture
Chapter 112
HP WBEM Services Architecture
The four main components of HP WBEM Services are:
• CIM server, the Common Information Model server
CIM server interacts with providers. CIM server receives requests
from management clients. It contacts the provider of that
information, and waits for the provider’s response. It sends that
response back to the client.
• CIM repository
The repository keeps definitions of the data about all the managed
objects and their providers. When a valid request is received, HP
WBEM Services will go to the repository and look up the managed
resource. The resource owners register their provider with HP
WBEM Services, telling what information or methods they will
provide and how HP WBEM Services can invoke the appropriate
action.
HP WBEM Services defines several operations to query or
manipulate the repository. Information can be entered as MOF files,
using the cimmof command. Information can be entered as XML
files, using the wbemexec command.
For information about maintaining and restoring the repository, see
Maintaining the Repository section of Chapter 5, and the checklist in
Chapter 7, Troubleshooting.
• MOF Compiler (Managed Object Format)
The compiler reads MOF files and loads their information into the
repository. A MOF file is a text representation of CIM classes.
MOF standards are defined by the DMTF, and are explained in their
tutorial section CIM Managed Object Format (MOF) at
http://www.dmtf.org/education/cimtutorial.
For more information, see the cimmof man page.
• HTTP Server (HyperText Transfer Protocol)
The server handles communication between HP WBEM Services and
clients.