What Next

You can now issue commands and view system messages on the local console.

How to Deconfigure a Device Manually

Before You Begin

To support the ability to boot even when nonessential components fail, the OpenBoot firmware provides the asr-disablecommand, which lets you manually deconfigure system devices. This command “marks” a specified device as disabled, by creating an appropriate “status” property in the corresponding device tree node. By convention, UNIX will not activate a driver for any device so marked. For background information, see

■“About Manually Configuring Devices” on page 59

What to Do

1.At the system ok prompt, type:

ok asr-disabledevice-identifier

where the device-identifieris one of the following:

■Any full physical device path as reported by the OpenBoot show-devscommand

■Any valid device alias as reported by the OpenBoot devalias command

■An identifier for a device given in “Reference for Device Identifiers” on page 61

Note – Manually deconfiguring a single processor causes the entire CPU/Memory board to be deconfigured, including all processors and all memory residing on the board.

OpenBoot configuration variable changes take effect after the next system reset.

162 Sun Fire V490 Server Administration Guide • August 2004

Page 189 Page 191
Page 190
Image 190
Sun Microsystems V490 manual How to Deconfigure a Device Manually, Before You Begin
Page 189 Page 191

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.
Top Page Image Contents