Caution – Fans on a Sun Fire V490 system are not hot-pluggable. Do not attempt to access any internal components unless you are a qualified service technician. Detailed service instructions can be found in the Sun Fire V490 Server Parts Installation and Removal Guide, which is included on the Sun Fire V490 Documentation CD.

Caution – A complete set of two working fan trays must be present in the system at all times. After removing a fan tray, you must install a replacement fan tray. Failure to install a replacement tray could lead to serious overheating of your system and result in severe damage to the system. For more information, see “Environmental Monitoring and Control” on page 20.

The following figure shows both fan trays. The figure on the left shows Fan Tray 0, which cools the CPUs. The figure on the right shows Fan Tray 1, which cools the FC-AL drives and PCI cards.

Fan Tray 0

Fan Tray 1

FIGURE 3-8 Fan Trays

Status for each fan tray is indicated by separate LEDs on the system’s front panel, which are activated by the environmental monitoring subsystem. The fans operate at full speed all the time—speed is not adjustable. Should a fan speed fall below a predetermined threshold, the environmental monitoring subsystem prints a warning and lights the appropriate Fault LED. For additional details, see “How to Isolate Faults Using LEDs” on page 172.

For each fan in the system, the environmental monitoring subsystem monitors or controls the following:

40 Sun Fire V490 Server Administration Guide • August 2004

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Sun Microsystems V490 manual Fan Trays
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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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