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Sun Microsystems V490 manual Reset Scenarios

Models: V490

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Reset Scenarios

The system control switch position and three OpenBoot configuration variables, service-mode?, diag-switch?, and diag-trigger, control whether and how the system runs firmware diagnostics in response to system reset events.

When you set the system control switch to the Diagnostics position, the system is in service mode and runs tests at Sun-specified levels, disabling auto-booting and ignoring the settings of OpenBoot configuration variables.

Setting the service-mode?variable to true also puts the system in service mode, producing exactly the same results as setting the system control switch to the Diagnostics position.

When you set the system control switch to the Normal position, and when the OpenBoot service-mode?variable is set to false (its default value), the system is in normal mode. When the system is in this mode, you can control diagnostics and auto-boot behavior by setting OpenBoot configuration variables, principally diag-switch?and diag-trigger.

When diag-switch?is set to false (its default value), you can use diag-triggerto determine what kind of reset events trigger diagnostic tests. The following table describes the various settings (keywords) of the diag-triggervariable. You can use the first three of these keywords in any combination.

Keyword

Function

 

 

power-on-reset

Reset caused by power-cycling the system.

(default)

 

error-reset

Reset caused by certain hardware error events, such as a RED State

(default)

Exception, Watchdog Reset, or Fatal Reset.

user-reset

Reset caused by operating system panics or by user-initiated

 

commands from OpenBoot (reset-all, boot) or from Solaris OS

 

(reboot, shutdown, init).

all-resets

Any kind of system reset.

none

Diagnostic tests are not executed.

 

 

See TABLE 6-2for a fuller list of OpenBoot configuration variables affecting diagnostics and system behavior.

58 Sun Fire V490 Server Administration Guide • August 2004

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Sun Microsystems V490 manual Reset Scenarios
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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.