Troubleshooting tables

Use the troubleshooting tables to find solutions to problems that have identifiable symptoms. See the Problem Determination and Service Guide on the IBM System x Documentation CD for more detailed troubleshooting information. If you cannot find a problem in these tables, run the diagnostic programs (see “Running the diagnostic programs” in the Problem Determination and Service Guide).

If you have just added new software or a new optional device and the server is not working, complete the following steps before you use the troubleshooting tables:

1.Check the system-error LED on the operator information panel (see Chapter 3, “Server controls, LEDs, and power,” on page 21).

2.Remove the software or device that you just added.

3.Run the diagnostic tests to determine whether the server is running correctly.

4.Reinstall the new software or new device.

CD or DVD drive problems

vFollow the suggested actions in the order in which they are listed in the Action column until the problem is solved.

vSee the parts listing in the Problem Determination and Service Guide to determine which components are customer replaceable units (CRU) and which components are field replaceable units (FRU).

vIf an action step is preceded by “(Trained service technician only),” that step must be performed only by a trained service technician.

Symptom

Action

The CD or DVD drive is not

1.

Make sure that:

recognized.

 

v The IDE channel to which the CD or DVD drive is attached (primary) is

 

 

 

 

enabled in the Configuration/Setup Utility program.

 

 

v All cables and jumpers are installed correctly.

 

 

v The correct device driver is installed for the CD or DVD drive.

 

2.

Run the CD, CD-RW, or DVD drive diagnostic programs.

 

3.

Reseat the following components:

 

 

a. CD or DVD drive

 

 

b. CD or DVD interface board cable

 

4.

Replace the following components one at a time, in the order shown, restarting

 

 

the server each time:

 

 

a. CD or DVD drive

 

 

b. CD or DVD drive interface board cable

 

 

c. CD or DVD interface board

 

 

d. (Trained service technician only) System board

 

 

 

A CD or DVD is not working

1.

Clean the CD or DVD.

correctly.

2.

Run the CD or DVD drive diagnostic programs.

 

 

3.

Reseat the CD or DVD drive.

 

4.

Replace the CD or DVD drive.

The CD or DVD drive tray is not 1. Make sure that the server is turned on. working.

2.Insert the end of a straightened paper clip into the manual tray-release opening.

3.Reseat the CD or DVD drive.

4.Replace the CD or DVD drive.

Chapter 5. Solving problems 37

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IBM 4364, 4365 manual Troubleshooting tables, CD or DVD drive problems

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.