10

10.1 No AC or DC Power

Begin

INDICATION

TEST/PROCEDURE

REFERENCE

No AC,

fans aren’t turning, no LEDs

No DC

or yellow LED is lit

System error messages

Check incoming AC power.

Check AC circuit breaker on the AC sequencer.

Check keyswitch setting.

Check position of the Local/Remote switch (cabinet server only).

Check system LEDs (front panel or clock board).

Check modular power supplies. Check peripheral power supply. Check CPU/Memory boards.

Check clock board. Operation may be erratic.

See Section 12.3, “Restarting the

System.”

See Figure 12-2 (cabinet).

See Figure 12-1 (cabinet)

or Figure 12-3 (standalone).

See Figure 12-2 (cabinet)

or Figure 12-4 (standalone).

See Table 9-1.

See Table 9-3.

Check LEDs on:

See Chapter 7, “Power Supplies.”

Front panel or clock board

 

Peripheral PS module

 

Modular PS modules

 

CPU/Memory boards

 

I/O boards

 

Check /var/adm/messages

 

End

Figure 10-1Diagnosing AC/DC Power Problems

10-2

Ultra Enterprise 6000/5000/4000 Systems ManualNovember 1996

Page 176
Image 176
Sun Microsystems 6000, 4000, 5000 manual No AC or DC Power, Indication TEST/PROCEDURE Reference

4000, 5000, 6000 specifications

Sun Microsystems, a pivotal player in the computing industry during the late 20th and early 21st centuries, was renowned for its innovative hardware and software solutions. Among its notable offerings were the Sun-6000, Sun-5000, and Sun-4000 series, powerful workstations and servers designed for a range of enterprise-level applications.

The Sun-6000 series, introduced in the early 1990s, marked a significant advancement in computing performance. These systems were built on the SPARC architecture, which facilitated high levels of processing power and multitasking capabilities. One of the main features of the 6000 series was its scalability, allowing organizations to increase their processing power by adding more modules. It also offered robust graphics performance, making it ideal for scientific visualization and complex data analysis.

Next in line was the Sun-5000 series. Launched shortly after the 6000 series, the 5000 line was celebrated for its reliability and ease of management. This series emphasized a balanced architecture, which combined processing capabilities with ample memory and storage options. Key characteristics included support for multiple processors, leading to improved performance for demanding applications. Additionally, the 5000 systems featured advanced input/output capabilities, ensuring fast data transfers—crucial for database applications and web servers.

Finally, the Sun-4000 series targeted businesses seeking affordable yet potent computing solutions. These servers boasted a modular design, allowing for easy upgrades and maintenance. The 4000 series was particularly notable for its support for various operating systems, including SunOS and Solaris. These systems were engineered to handle a range of workloads, from enterprise resource planning to web hosting, while still fitting into a value-driven budget.

Across all three series, Sun Microsystems prioritized compatibility and integration, ensuring that each system offered seamless connectivity with Sun's software solutions and third-party applications. Their commitment to open standards and interoperability set them apart in the competitive landscape of enterprise computing. Additionally, the use of high-quality components lent the systems durability, making them a wise investment for organizations looking to future-proof their IT infrastructure.

In summary, the Sun-6000, 5000, and 4000 series exemplified Sun Microsystems' ethos of innovation and reliability. These powerful systems catered to diverse business needs, setting benchmarks in performance and functionality that continue to influence modern computing.