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CHAPTER
1
System Overview
This chapter introduces you to the Sun Enterprise 220R server and explains some of
its features. The following information is covered in this chapter:
■ “About the Sun Enterprise 220R Server” on page 1
■ “Locating Front Panel Features” on page 4
■ “Locating Back Panel Features” on page 6
■ “About the Status and Control Panel” on page 7
About the Sun Enterprise 220R Server
The Sun Enterprise 220R server is a high-performance, shared memory, symmetric-
multiprocessing system. It is designed around Sun’s high-speed Ultra Port
Architecture (UPA) cross-bar system interconnect and Sun’s UltraSPARC
TM
II
processors, to deliver outstanding overall system performance.
The system is housed in a standard Electronic Industries Association 310 (EIA 310)
specification-compliant rackmountable enclosure. The enclosure measures 7.00
inches high, 17.25 inches wide, and 27.25 inches deep (17.8 cm x 43.8 cm x 69.2 cm).
The system has a maximum weight of 65 lb (34 kg). You may rackmount up to nine
systems in an empty 72-inch (182.80-cm) EIA-compliant cabinet, such as the Sun™
StorEdge Expansion Cabinet.
Processing power is provided by up to two modular UltraSPARC II CPUs, with up
to 4 Mbytes of local high-speed external cache memory. The system UPA’s clock rate
synchronizes automatically to the clock rate of the installed CPUs, and the UPA bus
operates at a clock rate that is a ratio of the speed of the CPU modules. For more
information about CPU modules, see “About CPU Modules” on page 67.