IBM System Storage EXP2512 Express Storage Enclosure, Инструкция по установке, использованию и обслуживанию

Страница: 18 / 72

Features and operating specifications
Table 3 contains a summary of the features and operating specifications of the
EXP2500. Depending on your EXP2500 model, some features might not be
available, or some specifications might not apply.
Table 3. Features and operating specifications
General:
v Modular components
– High-capacity disk drives
– Environmental services module
(ESM)
– Power supplies with built-in fan
units
v Technology
– Supports disk array technology
– SAS host interface, redundant
data storage, power and cooling
system, and ESMs
– Hot-swap technology for hard
disk drives, power supplies, and
ESMs
v User interface
– Built-in power, activity, and fault
LEDs, identification labeling on
components, rear LEDs, and
connectors
– Easy-to-replace hard disk drives,
power supplies with built-in fan
units, and ESMs
Hard disk drive storage:
Maximum hard disk drives
EXP2512: 12
Drive type: SAS and nearline SAS
EXP2524: 24
Drive type: SAS, nearline SAS, and
Solid State
ESMs:
Technology and interfaces:
SAS interface: Two 26-pin, mini-SAS
connectors per ESM
Acoustical noise emissions:
For maximum system configurations
(12 hard disk drives installed)
v
Sound power (idling): 6.1 bels
v Sound power (operating): 6.1 bels
v Sound pressure (idling): 48 dBA
v Sound pressure (operating): 48
dBA
AC power supply with built-in fan:
v The EXP2500 comes with two
hot-swap 800 watt (100 - 240 V
ac) power supplies.
v The two power supplies provide
redundant power to the EXP2500.
Size:
v Height: 8.7 cm (3.4 in.)
v Depth: 55.6 cm (21.9 in.)
v Width: 44.6 cm (17.6 in.)
v Weight (approximate):
8.7 kg (19.2 lb) for an empty unit
16.6 kg (36.5 lb) for a standard
unit
26.7 kg (58.8 lb) for a fully
configured unit
Environment:
v Air temperature:
– EXP2500 on: 10° to 35°C (50°
to 95°F); altitude: 30.5 (100 ft)
below to 3000 m (9840 ft)
above sea level; temperature
change: 10°C (18°F) per hour
– EXP2500 off: 10° to 50°C (14°
to 120°F); maximum altitude:
3000 m (9840 ft); temperature
change: 15°C (27°F) per hour
v Humidity:
– EXP2500 on: 20% to 80%
– EXP2500 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: 188 Btu
(55 watts)
v Maximum configuration 821 Btu
(240 watts)
Electrical input:
v
Sine-wave input (50-60 Hz) required
v Input voltage low range:
– Minimum: 90 V ac
– Maximum: 127 V ac
v
Input voltage high range:
– Minimum: 200 V ac
– Maximum: 264 V ac
Notes:
1. Power consumption and heat
output vary depending on the
number and type of optional
features that are installed and the
power-management optional
features that are 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
stated values 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.
6
System Storage EXP2512 and EXP2524: Installation and Maintenance Guide