In addition to the FRUs listed in TABLE 6-5, there are several minor replaceable system components—mostly cables—that cannot directly be isolated by any system diagnostic. For the most part, you determine when these components are faulty by eliminating other possibilities. These FRUs are listed in TABLE 6-6.

TABLE 6-6FRUs Not Directly Isolated by Diagnostic Tools

FRUNotes

FC-AL power cable

FC-AL signal cable

If OpenBoot Diagnostics tests indicate a disk problem, but replacing the disk does not fix the problem, you should suspect the FC-AL signal and power cables are either defective or improperly connected.

Fan Tray 0 power

If the system is powered on and the fan does not spin, or if the

cable

Power/OK LED does not come on, but the system is up and

 

running, you should suspect this cable.

Power distribution

Any power issue that cannot be traced to the power supplies should

board

lead you to suspect the power distribution board. Particular

 

scenarios include:

 

• The system will not power on, but the power supply LEDs

 

indicate DC Present

 

• System is running, but RSC indicates a missing power supply

Removable media

If OpenBoot Diagnostics tests indicate a problem with the CD/DVD

bay board and cable

drive, but replacing the drive does not fix the problem, you should

assembly

suspect this assembly is either defective or improperly connected.

System control

If the system control switch and Power button appear unresponsive,

switch/power

you should suspect this cable is loose or defective.

button cable

 

 

 

About Monitoring the System

Sun provides two tools that can give you advance warning of difficulties and prevent future downtime. These are:

■Sun Remote System Controller (RSC)

■Sun Management Center

These monitoring tools let you specify system criteria that bear watching. For instance, you can set a threshold for system temperature and be notified if that threshold is exceeded.

Chapter 6 Diagnostic Tools 101

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Sun Microsystems V490 manual About Monitoring the System, 6FRUs Not Directly Isolated by Diagnostic Tools
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V490 specifications

Sun Microsystems V490 is a robust, high-performance server that was launched in the mid-2000s. It is part of Sun's Enterprise line of servers, specifically designed to meet the needs of businesses requiring reliability, scalability, and efficiency in their computing environments. The V490 is well-regarded for its versatility and ability to handle demanding applications.

At the heart of the V490 is its support for the UltraSPARC IV processor. The server can be configured to contain up to four processors, allowing it to deliver exceptional parallel processing capabilities. The UltraSPARC IV architecture enhances throughput and efficiency, making it suitable for enterprise applications and database management tasks.

One of the standout features of the V490 is its memory capacity. The server can support up to 64 GB of RAM, which allows for extensive caching and improved performance for memory-intensive applications. Coupled with a high bandwidth architecture, the V490 ensures that data can be processed quickly and effectively.

The V490 also emphasizes storage flexibility. It comes equipped with multiple disk drive bays, allowing for a combination of SATA and SAS drives. This flexibility enables businesses to tailor their storage solutions according to their specific performance and redundancy requirements. The V490 supports hot-swappable drives, making maintenance and upgrades considerably easier without taking the server offline.

In terms of connectivity, the Sun V490 features a variety of networking options. It includes multiple Gigabit Ethernet ports, ensuring high-speed data transfer and redundancy. Additionally, the server supports advanced input/output capabilities, making it compatible with various peripherals and external storage solutions.

Sun Microsystems V490 runs on the Solaris operating system, known for its stability and security. This OS enhances the server's performance while providing a reliable platform for mission-critical applications. The V490 also supports virtualization technologies, allowing organizations to run multiple operating systems and applications on a single hardware platform, thus optimizing resource utilization.

Another key characteristic of the V490 is its thermal efficiency. The server is designed with an advanced cooling system that minimizes energy consumption while maximizing performance. This focus on power efficiency aligns with modern data center requirements for sustainability and reduced operational costs.

In summary, the Sun Microsystems V490 is a powerful enterprise server that combines the latest processing technologies, substantial memory and storage capabilities, and robust networking options. Its scalability, along with advanced virtualization support and energy-efficient design, makes it a suitable choice for organizations looking to enhance their IT infrastructure. The V490 remains a testament to Sun Microsystems' commitment to delivering high-quality, reliable computing solutions.
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