IBM EXP400 Type 1733, Руководство по техническому обслуживанию и ремонту

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Table 1. Features and operating specifications
General:
v
Modular components
– High-capacity disk drives
– SCSI Bus Expander and
Enclosure Services Module
(ESM)
– Power supplies with built-in fan
units
v Technology
– Supports disk array technology
– Supports clustering
– SCSI (Ultra320) host interface,
redundant data storage, power
and cooling system, and ESMs
– Hot-swap technology for hard
disk drives, power supply with
fan units, and ESMs
v
User interface
– Built-in power, activity, and fault
indicators, identification labeling
on CRUs, rear indicator lights,
switches, and connectors
– Easy-to-replace drives, power
supplies with built-in fan units,
and ESMs
Hard disk drive storage:
v
Current capabilities:
– Maximum hard disk drives per
expansion unit: 14
– Hard disk drives per SCSI bus
segment: 7
– SCSI buses per unit: 2
– SCSI buses can be configured
as one continuous SCSI bus.
ESMs:
v Technology and interfaces:
– SCSI: Ultra320
– SCSI bus interface: Two 68-pin,
Very High Density Connector
Interface (VHDCI) connectors for
SCSI bus cables
Acoustical noise emissions:
For open bay (no drives installed)
and maximum system configurations
(14 hard disk drives installed).
v Sound power (idling):
– 5.5 bels (open bay)
– 5.7 bels (typical)
v Sound power (operating):
– 6.0 bels (open bay)
– 6.5 bels (typical)
v Sound pressure (idling):
– 44 dBA (open bay)
– 47 dBA (typical)
v
Sound pressure (operating):
– 44 dBA (open bay)
– 54 dBA (typical)
AC power supply with built-in fan:
v
Expansion unit model 1RU or 1RX
comes with two hot-swap 500 watt
(115 - 230 V ac) power supply
with fan units.
v The two power supplies provide
redundant power to the expansion
unit.
-48 volt dc power supply:
At a nominal voltage of -48 volt dc,
the expansion unit draws
approximately 5 amperes.
Size:
v
Height: 12.8 cm (5.0 in.)
v
Depth: 54.0 cm (21.8 in.)
v
Width: 44.7 cm (17.6 in.)
v
Weight: approximately 24.3 kg
(53.6 lb) for a standard unit. When
fully configured 37.3 kg (82 lb)
Environment:
v
Air temperature:
– Expansion unit on: 10° to 40°C
(50.0° to 104°F); altitude: 30.5
(100 ft) below to 3000 m (9840
ft) above sea level;
temperature change: 10°C to
(18°F) per hour
– Expansion unit off: 10° to 50°C
(14.0° to 120.0°F); maximum
altitude: 3000 m (9840 ft);
temperature change: 15°C
(27.0°F) per hour
Environment cont.
v
Humidity:
– Expansion unit on: 20% to 80%
– Expansion unit off: 10% to 90%
– Maximum dew point: 26°C (79°F)
– Maximum humidity gradient: 10%
per hour
Heat output:
Approximate heat output in British
thermal units (Btu) per hour:
v Minimum configuration: 82.4 Btu
(282 watts)
v Maximum configuration: 91.0 Btu
(311 watts)
Electrical input:
v
Sine-wave input (50-60 Hz) required
v Input voltage low range:
– Minimum: 90 V ac
– Maximum: 136 V ac
v
Input voltage high range:
– Minimum: 198 V ac
– Maximum: 264 V ac
v Input kilovolt-amperes (kVA),
approximately:
– Minimum: 0.06 kVA
– Maximum: 0.45 kVA
Notes:
1. Power consumption and heat
output vary depending on the
number and type of optional
features installed and the
power-management optional
features in use.
2. These levels were measured in
controlled acoustical environments
according to the procedures
specified by the American National
Standards Institute (ANSI) S12.10
and ISO 7779 and are reported in
accordance with ISO 9296. Actual
sound-pressure levels in a given
location might exceed the average
values stated because of room
reflections and other nearby noise
sources. The declared sound-power
levels indicate an upper limit, below
which a large number of computers
will operate.
Chapter 1. General information
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