An online version of the manual is included with the Solaris Software Supplement CD that ships with Solaris software. It is also is available at the following web site under Solaris on Sun Hardware:

http://docs.sun.com

About OpenBoot Environmental Monitoring

Environmental monitoring and control capabilities for Sun Fire V490 systems reside at both the operating system level and the OpenBoot firmware level. This ensures that monitoring capabilities are operational even if the system has halted or is unable to boot. When the system is under OpenBoot control, the OpenBoot environmental monitor checks the state of the system power supplies, fans, and temperature sensors periodically. If it detects any voltage, current, fan speed, or temperature irregularities, the monitor generates a warning message to the system console.

For additional information about the system’s environmental monitoring capabilities, see “Environmental Monitoring and Control” on page 20.

Enabling or Disabling the OpenBoot

Environmental Monitor

The OpenBoot environmental monitor is enabled by default when the system is operating at the ok prompt. However, you can enable or disable it yourself using the OpenBoot commands env-onand env-off. For more information, see:

■“How to Enable OpenBoot Environmental Monitoring” on page 154

■“How to Disable OpenBoot Environmental Monitoring” on page 154

The commands env-onand env-offonly affect environmental monitoring at the firmware level. They have no effect on the system’s environmental monitoring and control capabilities while the operating system is running.

52 Sun Fire V490 Server Administration Guide • August 2004

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Sun Microsystems V490 About OpenBoot Environmental Monitoring, Enabling or Disabling the OpenBoot Environmental Monitor
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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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