HP StorageWorks Command View XP Advanced Edition Device Manager Server Installation and Configuration Guide (December 2005)

Appendix A Overview of CIM/WBEM 134
Appendix A Overview of CIM/WBEM
CIM (Common Information Model) allows you to access information about the storage subsystems
managed by Device Manager. To collect such information, you can use the standard CIM operations
released by DMTF (Distributed Management Task Force). CIM conforms to the SMI-S specifications
proposed by SNIA (Storage Network Industry Association).
This chapter gives an overview of CIM/WBEM (Web-Based Enterprise Management) provided by
Device Manager.
A-1 Device Manager and CIM/WBEM
Device Manager supports WBEM defined by the standards-setting organization DMTF. WBEM is a
standard proposed by the DMTF for managing networked devices, including hosts and storage
subsystems, over the Internet. WBEM enables you to share data about devices in different
environments (such as environments with different vendors, operating systems, or protocols) without
considering the differences. WBEM is based on CIM, an object-oriented information model.
CIM, defined by DMTF, is a standardized approach for managing systems in network environments.
CIM provides a framework for expressing the data to be managed. Applying CIM to storage
subsystems enables you to use standardized methods to manage the configuration and status of
storage subsystems in networks.
The CIM models provided by Device Manager conform to the SMI-S specifications (SNIA-CTP)
endorsed by SNIA. The CIM models of the Device Manager server are defined in MOF (Managed
Object Format) files provided by Device Manager. The MOF namespace provided by Device Manager
version 1.1 is root/hitachi/dm43.
NOTE: When Device Manager version 1.1 receives a request specifying a namespace used in version 1.0
(root/hitachi/dm42), it executes CIM operations based on the applicable namespace.
CIM clients can access Device Manager by using the CIM XML/HTTP interface defined by WBEM.
Figure A-1 shows the CIM components for Device Manager.
Figure A-1 CIM Components for Device Manager
For information about CIM, WBEM, and SMI-S, visit the website of the applicable standards-setting
organization.
The following table lists the specifications and versions supported by Device Manager version 1.1.