Fixing Fibre Channel Errors

If you are connected to a Fibre Channel Storage Area Network (SAN) by using a SAN Data Gateway, use the IBM Storage Area Network Gateway Module Setup, Operator, and Service Guide to determine whether the problem is occurring between the drive and the SAN Data Gateway. If you are using a SCSI drive and are having SCSI problems, see “Fixing SCSI Bus Errors” on page 77.

Starting Problem Determination

Before starting the problem determination, perform the following steps:

1.Determine the type of Fibre Channel topology that you are using (see page 6). Ensure that the drive and the port to which it is attached are configured in compatible topologies.

2.Using this guide or the service guides of associated switch, hub, or fiber products, try to determine where the problem exists (whether in the drive, cable, or the device to which the drive and cable attach).

3.Ensure that the configuration and software levels are supported (see “Fibre Channel Attachment” on page 6).

4.Ensure that the Fibre Channel cables are installed correctly. Refer to the appropriate steps in Chapter 3, “Installing the Tape Drive” on page 13.

5.Go to one of the following procedures:

v “Fixing a Consistent Error with a Single Drive on a Fibre Channel Loop”

v“Fixing a Consistent Error with Multiple Drives on a Fibre Channel Loop” on page 80

v“Fixing a Consistent Error in a Point-to-Point Topology” on page 80

v“Fixing Intermittent Fibre Channel Errors” on page 81

Fixing a Consistent Error with a Single Drive on a Fibre Channel Loop

1.Ensure that the tape drive is powered on.

2.Verify that the tape drive’s serial number is the same as the drive serial number that the server program is using.

3.Ensure that the drive’s Fibre Channel AL_PA is set correctly, that it is on the loop, and that it is not being used by another device (see “Setting the Arbitrated Loop Physical Address (Fibre Channel Drive Only)” on page 19). The tape drive must be able to detect light and communicate with the server.

4.Run the Fibre Channel wrap test at the drive’s Fibre Channel connector (see Function Code 6 in Table 9 on page 36).

vIf the test fails, replace the tape drive.

vIf the test is successful, go to step 5.

5.Run the Fibre Channel wrap test at the end of the fiber cable (see Function Code 6 in Table 9 on page 36).

vIf the test fails, replace the fiber cable.

vIf the test is successful, go to step 6.

6.Check the Fibre Channel cable connection at the server.

7.Using a device driver utility such as ntutil or tapeutil, verify that the drive is properly configured and available at the server.

8.If the problem persists, the fault may be with the server’s hardware or software. Refer to your server’s service manual.

Chapter 6. Resolving Problems 79

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IBM Partner Pavilion T400F manual Fixing Fibre Channel Errors, Starting Problem Determination
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T400, T400F specifications

The IBM Partner Pavilion T400F and T400 are innovative solutions designed to enhance the productivity and efficiency of businesses through their advanced features and robust technologies. These systems are tailored to meet the demands of modern enterprises, focusing on performance, scalability, and reliability.

One of the key features of the T400F is its powerful processor options, which allow organizations to run complex workloads with ease. The T400F boasts Intel Xeon Scalable processors, providing users with the flexibility to choose configurations that best fit their specific needs. This ensures that businesses can tackle demanding applications, from data analytics to artificial intelligence, without compromising on performance.

The T400 is equally impressive, supporting a similar range of processors and offering enhanced performance capabilities. Both models benefit from IBM's cutting-edge chip technology, which guarantees high-speed data processing and minimizes latency. This is particularly beneficial for businesses that rely on real-time data analysis and decision-making.

Storage options are another standout feature of the T400F and T400. These systems support a variety of storage configurations, including high-performance SSDs and traditional HDDs. With advanced storage technologies such as RAID configurations, users can ensure data redundancy and security, which is critical for safeguarding sensitive business information.

In terms of scalability, both the T400F and T400 allow for easy expansion. Organizations can increase their processing power and storage as their needs grow, making these systems a solid investment for the future. This scalability is complemented by robust networking capabilities, which include multiple high-speed Ethernet ports and support for emerging technologies such as Software-Defined Networking (SDN).

Another important characteristic of the T400F and T400 is their focus on energy efficiency. IBM has integrated intelligent power management systems that reduce energy consumption without sacrificing performance. This sustainable approach not only lowers operational costs but also aligns with corporate social responsibility initiatives aimed at reducing carbon footprints.

Moreover, both systems offer enhanced security features, including hardware-based encryption and secure boot technologies. These safeguards protect sensitive data and ensure compliance with industry standards, giving organizations peace of mind as they navigate the complexities of cybersecurity.

Ultimately, the IBM Partner Pavilion T400F and T400 represent a powerful combination of performance, scalability, and security, making them ideal choices for businesses seeking to optimize their IT infrastructure. With these features and technologies at their disposal, organizations can achieve greater efficiency, drive innovation, and remain competitive in a rapidly evolving marketplace.
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