gain access to the disk drives, power supplies, and Fan Tray 0. If the media door is locked and the power supply access panel is in place, you will not be able to gain access to the power supplies, disk drives, and Fan Tray 0—even if the PCI access panel is unlocked.

Note – The same key operates the security lock, the system control switch (see “System Control Switch” on page 15), and the top panel lock for the PCI and CPU access panels.

The standard system is configured with two power supplies, which are accessible from the front of the system. LED indicators display power status. See “LED Status Indicators” on page 13 for additional details.

LED Status Indicators

Several LED status indicators on both the front and back panels provide general system status, alert you to system problems, and help you to determine the location of system faults.

At the top left of the system as you look at its front are three general system LEDs. Two of these LEDs, the system Fault LED and the Power/OK LED, provide a snapshot of the overall system status. The Locator LED helps you to locate a specific system quickly, even though it may be one of dozens or even scores of systems in a room. The front panel Locator LED is at the far left in the cluster. The Locator LED is lit by command from the administrator. For instructions, see “How to Operate the Locator LED” on page 168.

Other LEDs located on the front of the system work in conjunction with specific fault LED icons. For example, a fault in the disk subsystem illuminates the disk drive Fault LED in the center of the LED cluster that is next to the affected disk drive. Since all front panel status LEDs are powered by the system’s 5-volt standby power source, Fault LEDs remain lit for any fault condition that results in a system shutdown.

Locator, Fault, and Power/OK LEDs are also found at the upper-left corner of the back panel. Also located on the back panel are LEDs for the system’s two power supplies and RJ-45 Ethernet ports.

See FIGURE 2-1and FIGURE 2-3for locations of the front panel and back panel LEDs.

During system startup, LEDs are toggled on and off to verify that each one is working correctly.

The following tables list and describe the LEDs on the front panel: system LEDs, fan tray LEDs, and hard disk drive LEDs.

Chapter 2 System Overview 13

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Sun Microsystems V490 manual LED Status Indicators
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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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