Sun Microsystems Sun Fire V490 - Manual (Page 69)

Chapter 3 Hardware Configuration 41
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Fan speed in revolutions per minute (RPM) (monitored)
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Fan Fault LEDs (controlled)
Configuration Rule
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The minimum system configuration requires a complete set of two working fan
trays—Fan Tray 0 for the CPUs and Fan Tray 1 for the FC-AL drives and PCI
cards.
Note – Do not attempt to access any internal components unless you are a qualified
service technician. Detailed service instructions can be found in the Sun Fire V490
Server Parts Installation and Removal Guide, which is included on the Sun Fire V490
Documentation CD.
About FC-AL Technology
Fibre Channel (FC) is a high-performance serial interconnect standard designed for
bidirectional, point-to-point communication among servers, storage systems,
workstations, switches, and hubs.
Fibre Channel-Arbitrated Loop (FC-AL) is an important enhancement to the FC
standard, developed specifically to meet the needs of storage system interconnects.
Employing a simple loop topology, FC-AL can support both simple configurations
and complex arrangements of hubs, switches, servers, and storage systems.