IBM BladeCenter HT 8740, Problem Determination And Service Manual

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Features and specifications
The following table provides a summary of the features and specifications of the
BladeCenter HT unit. Depending on the model, some features might not be
available, or some specifications might not apply.
Media tray (on front):
v Minimum: One hot-swap media tray
v Maximum: Two hot-swap media trays
Each media tray consists of:
v
Two internal CompactFlash slots
v
Two USB v2.0 ports (output power:
500 mA maximum)
v
Front system LED panel
Blade bays (on front): Twelve
hot-swap blade server bays
Module bays (on front):
v Four hot-swap power-module bays
v Four hot-swap high-speed
I/O-module bays
v Four hot-swap I/O-module bays
v Two hot-swap management-module
bays
v Two hot-swap media trays
Module bays (on rear):
v
Two hot-swap multiplexer
expansion-module bays
v
One hot-swap alarm panel module
bay
– Telco alarm connector
– Direct serial connector for blade
servers
– Rear system LED panel
v Four hot-swap fan modules
Power modules:
BladeCenter HT Type 8740:
v Minimum: Two dc hot-swap power
modules that are configured for
redundant operation
v Maximum: Four dc hot-swap power
modules that provide redundancy to
all BladeCenter HT components
BladeCenter HT Type 8750:
v Minimum: Two ac hot-swap power
modules that are configured for
redundant operation
v Maximum: Four ac hot-swap power
modules that provide redundancy to
all BladeCenter HT components
Management module:
v Minimum: One hot-swap advanced
management module
v Maximum: Two hot-swap advanced
management modules: one active, one
hot stand-by
Redundant cooling: Four hot-swap
fan-module bays (N+1 redundant)
Upgradeable microcode:
v Management-module firmware
v
I/O-module firmware (not all I/O module
types)
v
Blade server firmware
Security features:
v Login password for remote connection
v Secure Sockets Layer (SSL) security for
remote management access
v ANSI T1.276 enhanced security
features
Predictive Failure Analysis (PFA) alerts:
v
Fans
v
Blade-dependent features
Size (12 U):
v
Height: 533.40 mm (21 in. or 12 U),
minus 8 mm for clearance
v
Depth:
– Without optional bezel: 617 mm
(24.29 in.)
– With optional bezel: 706 mm (27.80
in.)
v
Width: 442 mm (17.4 in.)
v
Weight:
– Full configured weight with blade
servers: Approximately 158.8 kg (350
lb)
– Empty chassis without modules or
blade servers: Approximately 65.32
kg (144 lb)
Environment (per Telcordia GR-63-CORE):
v Operational:
– Altitude: -60 m to 1800 m (-197 ft to
6000 ft), 5° C to 40° C (41° F to 104° F):
– Altitude: 1800 m to 4000 m (6000 ft to
13000 ft) 5° C to 30° C (41° F to 86° F)
– Humidity: 5% to 85%
v Short term operational:
– Altitude: -60 m to 1800 m (-197 ft to
6000 ft), -5° C to 55° C (23° F to 131° F)
– Altitude: 1800 m to 4000 m (6000 ft to
13000 ft), -5° C to 45° C (23° F to 113°
F)
– Humidity: 5% to 90% not to exceed
0.024 water/kg of dry air
v
Shipping/Storage:
– Unit off: -40° C to 70° C (-40° F to 158°
F), 30° C/hr maximum rate of change
– Humidity: Uncontrolled
– Acclimation of the system might be
required after a period of high-humidity
storage
Acoustics: Declared sound power level: 7.8
bels, 25° C, sea level
Electrical input (N+N redundant):
BladeCenter HT Type 8740 input voltage (four
inputs at 60 A rating each):
v
Minimum: -40 V dc
v
Maximum: -72 V dc
v
DC isolated
BladeCenter HT Type 8750 input voltage (four
inputs at 16 A rating each):
v Minimum: 180 V ac
v Maximum: 265 V ac
v Sine-wave input (50/60 Hz single-phase)
Heat output: Approximate heat output in
British thermal units (Btu) per hour:
v BladeCenter HT Type 8740:
– Minimum configuration: 4270 Btu per
hour (1251 watts)
– Maximum configuration: 19680 Btu per
hour (5766 watts)
v BladeCenter HT Type 8750:
– Minimum configuration: 4175 Btu per
hour (1223 watts)
– Maximum configuration: 21850 Btu per
hour (6400 watts)
Note: The intra-building ports of the equipment or subassembly are suitable for connection to intra-building or unexposed wiring or
cabling only. The intra-building ports of the equipment or subassembly must not be metallically connected to interfaces that connect
to the outside plant (OSP) or its wiring. These interfaces are designed for use as intra-building interfaces only (type 2 or type 4 ports
as described in GR-1089-CORE, Issue 4) and require isolation from the exposed OSP cabling. The addition of primary protectors is
not sufficient protection in order to connect these interfaces metallically to OSP wiring.
Chapter 1. Introduction
5