Chapter 5. Solving problems

This chapter provides basic troubleshooting information to help you solve some common problems that might occur while you are setting up the server.

If you cannot locate and correct a problem by using the information in this chapter, see Appendix A, “Getting help and technical assistance,” on page 49, the Problem Determination and Service Guide on the IBM System x Documentation CD, and the “Server Support” flowchart in the front of this document.

Diagnostic tools overview

The following tools are available to help you diagnose and solve hardware-related problems:

vPOST beep codes

The power-on self-test beep codes indicate the detection of a problem.

One beep indicates successful completion of POST, with no errors.

More than one beep indicates that POST detected a problem. Error messages also appear during startup if POST detects a hardware-configuration problem. See “POST beep codes” and the Problem Determination and Service Guide on the IBM System x Documentation CD for more information.

vTroubleshooting charts

These charts list problem symptoms and steps to correct the problems. See “Troubleshooting tables” on page 37 for more information.

vDiagnostic programs and error messages

The system diagnostic programs are provided on the IBM Enhanced Diagnostics CD. These programs test the major components of the server. See the Problem Determination and Service Guide on the IBM System x Documentation CD for more information.

POST beep codes

POST emits one beep to signal successful completion. If POST detects a problem during startup, other beep codes might occur. Use the following beep code descriptions to help diagnose and solve problems that are detected during startup.

Note: See the Problem Determination and Service Guide on the IBM System x

Documentation CD for more information about the POST beep codes.

One beep

POST was completed successfully without detecting any errors.

Other beep codes

See the Problem Determination and Service Guide on the IBM System x

Documentation CD for information about other beep codes.

© Copyright IBM Corp. 2007

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IBM 4364, 4365 manual Solving problems, Diagnostic tools overview, Post beep codes

4364, 4365 specifications

The IBM 4365 and 4364 are significant models in IBM’s lineup of mainframe computers, designed primarily for large organizations requiring robust processing capabilities. These models emerged during the late 1980s and early 1990s, serving to enhance the performance and versatility of business computing environments.

The IBM 4365, launched in 1985, is known for its sophisticated architecture and large processing power, capable of managing substantial transaction volumes. It features the advanced Multiple Virtual Storage (MVS) operating system, which allows for efficient processing and management of numerous tasks simultaneously. The MVS system contributes to high reliability and availability, factors paramount for businesses that rely on uninterrupted service.

One of the standout characteristics of the IBM 4365 is its ability to scale. Users could configure the system with multiple processors, allowing it to handle increasing workloads effectively. This scalability is made possible through its use of IBM's proprietary technology, which optimizes resource allocation to improve efficiency. The system could support an impressive number of users, making it ideal for large enterprises.

In contrast, the IBM 4364, released slightly later, is a more modest version aimed at smaller organizations but still renowned for its reliable performance. It too operates the MVS operating system, but its configurations are tailored for less intensive processing needs. It is designed with cost-effectiveness in mind, making it suitable for businesses that require robust computing without the extensive capabilities of larger systems.

Both models benefit from IBM's robust security features, ensuring data protection and compliance with industry standards. Additionally, they offer significant storage options, utilizing IBM's innovative storage technologies to retain vast amounts of data efficiently.

Among the key technologies that defined these mainframes were the use of advanced input/output capabilities and compatibility with a broad range of peripheral devices. This integration allowed organizations to enhance productivity while maintaining seamless operations across various applications.

Overall, the IBM 4365 and 4364 exemplify the evolution of mainframe technology during their era, offering remarkable processing power, superior reliability, and scalability while paving the way for future innovations in enterprise computing. Their legacy remains influential in shaping the landscape of business technology today, as organizations continue to rely on mainframe processing for critical operations.