A Guide to Migrate Hardware Diagnostics from EMS to WBEM-Based Solution

1 Introduction
Traditionally, hardware resources on HP-UX systems were monitored using the Event Monitoring
Service (EMS) based hardware diagnostics solution that provided an array of EMS monitors to
monitor the system hardware. It also provided tools to check the status and property information
of hardware components and perform various tests on the hardware components. However, with
increasing complexity of hardware in the data center, there is a growing demand to simplify IT
infrastructure management. HP has redefined the hardware diagnostics solution based on the
industry standard Distributed Management Task Force (DMTF) Common Information Model (CIM)
and the DMTF Web Based Enterprise Management (WBEM). As a result, we now have the next
generation hardware diagnostics solution, which is a WBEM-based solution.
Other Diagnostic functionality, such as user initiated hardware tests, were traditionally performed
on HP-UX systems using the Support Tool Monitor (STM). For similar reasons, these too have been
replaced with industry standard WBEM solutions. The WBEM-based Hardware Diagnostics solution
provides an industry standard based health tests for system devices (CPU health validation and
Memory health validation tests etc). For more information, see ProviderSvcsBase administrator
guide at: www.hp.com/go/hpux-wbem-docs
The WBEM solution contains the DMTF CIM WBEM compliant providers as the base instrumentation
that monitors the system hardware, and provides tools to dynamically query for status and property
information about common hardware components. The WBEM-based hardware diagnostics solution
is a part of the SysFaultMgmt, SASPROVIDER, FCPROVIDER, RAIDSAPROVIDER, and
WBEMP-Storage products, and is available on the base Operating Environment (OE).
This chapter briefly introduces you to the EMS & STM based and WBEM-based hardware diagnostics
solutions. It contains the migration overview that announces the discontinuation of the EMS & STM
based hardware diagnostics solution. It lists the features and benefits provided by the WBEM-based
over the EMS & STM based hardware diagnostics solution. This chapter outlines the differences
in terminologies, architecture, and functioning of both the solutions.
This chapter includes the following topics:
• “Introduction to the EMS & STM based Hardware Diagnostics Solution” (page 4)
• “Introduction to WBEM-Based Hardware Diagnostics Solution” (page 5)
• “Migration Overview” (page 5)
• “Benefits of Using WBEM-Based Hardware Diagnostics Solution” (page 6)
• “Comparison of EMS & STM based and WBEM-Based Hardware Diagnostics Solution”
(page 6)
Introduction to the EMS & STM based Hardware Diagnostics Solution
The EMS & STM based hardware diagnostics solution includes the Online Diagnostics software,
which is a collection of tools used to monitor and test server hardware. It comprises the EMS
framework, the EMS Hardware Monitors, and the Support Tools Manager (STM).
NOTE: In this document, the Online Diagnostics software is referred to as OnlineDiag.
EMS is a framework that supports hardware monitoring. The EMS Hardware Monitors monitor
server hardware and notify users of errors that occur in the monitored devices. STM comprises
support tools that you can use to run tests on and display information about the hardware resources.
OnlineDiag is supported only on servers running HP-UX.
For more information about OnlineDiag, see the Online Diagnostics (EMS and STM) Administrator's
Guide:
www.hp.com/go/hpux-diagnostics-online-docs
4 Introduction