About the SGI 2400 and 2800
9
About the SGI 2400 and 2800
As illustrated in Figure 1-7, the server is a number of processing modules linked together
by the CrayLink Interconnect. Each processing module contains either one or two
processors, a portion of main memory, a directory to maintain cache coherence, and two
interfaces: one that connects to I/O devices and another that links system nodes through
the CrayLink Interconnect.
Cache coherence is the ability to keep data consistent throughout a system. In the
symmetrical multiprocessor (SMP) server system, data can be copied and shared among
all the processors and their caches. Moving data into a cache may cause the cached copy
to become inconsistent with the same data stored elsewhere. The cache coherence
protocol is designed to keep data consistent and to propagate the most recent version of
the data to wherever it is being used.
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Страница 1: ...SGI 2400 and 2800 Server Owner s Guide Document Number 007 4192 001 ...
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Страница 22: ...2 Chapter 1 Introducing the SGI 2400 and 2800 Server Systems Figure 1 1 SGI 2400 Rackmount Server System ...
Страница 23: ...System Features 3 Figure 1 2 SGI 2400 Multirack System Configuration Example ...
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Страница 48: ...28 Chapter 2 Chassis Tour Figure 2 7 Node Board Positioning in the Chassis Node 1 Node 4 Node 3 Node 2 ...
Страница 71: ...Rackmount Configurations 51 Figure 4 4 16P SGI 2400 Server Node boards Router boards Midplane R1 R2 R3 R4 ...
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Страница 81: ...Connecting Your Terminal 61 Figure 5 1 Connecting a Terminal Terminal Console port ...
Страница 87: ...Loading the CD ROM 67 Figure 5 4 Installing a CD ROM Into an SGI 2400 or 2800 Chassis Retainers Retainers ...
Страница 91: ...Initially Powering On the System 71 Figure 5 7 Turning On the PDU PDU off PDU on PDU power switch ...
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Страница 107: ...General Procedures 87 Figure 6 5 Turning Off the PDU PDU off PDU on PDU power switch ...
Страница 113: ...Specific Procedures 93 Figure 6 10 Removing the Drive Handle in open position Handle in closed position ...
Страница 117: ...Specific Procedures 97 Figure 6 12 Removing the System Controller and CD ROM ...
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