About Manually Configuring Devices

Normal Mode and Service Mode Information

You will find a full description of normal and service modes, as well as detailed information about the OpenBoot configuration variables that affect ASR behavior, in OpenBoot PROM Enhancements for Diagnostic Operation, which is available on the Sun Fire V490 Documentation CD.

This section explains the difference between deconfiguring a device and a slot, tells what happens if you try to deconfigure all of a system’s processors, and also discusses how to obtain device paths.

Deconfiguring Devices vs. Slots

For some devices, different things happen when you deconfigure a slot than when you deconfigure the device that resides within a slot.

If you deconfigure a PCI device, the device in question can still be probed by firmware and recognized by the operating system. Solaris OS “sees” such a device, reports it as failed, and refrains from using it.

If you deconfigure a PCI slot, firmware will not even probe the slot, and the operating system will not “know about” any devices that may be plugged in to the slot.

In both cases, the devices in question are rendered unusable. So why make the distinction? Occasionally, a device may fail in such a way that probing it disrupts the system. In cases such as these, deconfiguring the slot in which the device resides is more likely to contain the problem.

Deconfiguring All System Processors

You can use the asr-disablecommand to deconfigure all system processors. Doing this will not crash the system. The OpenBoot system firmware, even though it reports all processors as deconfigured, in actuality keeps one processor functioning well enough to run the firmware.

Chapter 4 Network Interfaces and System Firmware 59

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.

Sun Microsystems V490 manual About Manually Configuring Devices, Deconfiguring Devices vs. Slots

Models: V490

Normal Mode and Service Mode Information