IBM x3850 X5, Руководство по внедрению

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122
IBM eX5 Implementation Guide
򐂰 Five hot-swap 40 mm fans.
򐂰 Power supply:
– Hot-swap power supplies with built-in fans for redundancy support.
– 675-watt (110 - 220 V ac auto-sensing).
– One power supply standard; a second redundant power supply is optional.
򐂰 Light path diagnostics LEDs:
– Board LED
– Configuration LED
– Fan LEDs
– Link LED (for QPI and EXA5 links)
– Locate LED
– Memory LEDs
– Power-on LED
– Power supply LEDs
򐂰 Physical specifications:
– Width: 483 mm (19.0 inches)
– Depth: 724 mm (28.5 inches)
– Height: 44 mm (1.73 inches) (1U rack unit)
– Basic configuration: 12.8 kg (28.2 lb)
– Maximum configuration: 15.4 kg (33.9 lb)
With the addition of the MAX5 memory expansion unit, the x3690 X5 gains an additional 32
DIMM sockets for a total of 64 DIMM sockets. Using 16 GB DIMMs, you can install a total of
1 TB of RAM.
All DIMM sockets in the MAX5 are accessible, regardless of whether one or two processors
are installed in the x3690 X5.
Figure 4-6 shows the ports at the rear of the MAX5 memory expansion unit. When connecting
the MAX5 to an x3690 X5, the QPI ports are used. The EXA ports are unused.
Figure 4-6 MAX5 connectors and LEDs
Figure 4-7 on page 123 shows the internals of the MAX5, including the IBM EXA chip that
acts as the interface to the QPI links from the x3690 X5.
Tip: The MAX5 that is used with the x3690 X5 is the same as the MAX5 offered with the
x3850 X5.
Power-on
LED
Locate
LED
System
error
LED
AC LED (green)
DC LED (green)
Power supply
fault (error) LED
QPI
port 1
Power
connectors
EXA port 1
LED link
EXA port 2
LED link
EXA port 3
LED link
EXA
port 1 EXA
port 2 EXA
port 3 QPI
port 2 QPI
port 3 QPI
port 4