IBM TotalStorage DS4300 Turbo, Инструкция по установке и эксплуатации

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Operating specifications
Table 10 summarizes the operating specifications of the storage server.
Table 10. DS4300 storage server operating specifications
Size (with front panel and without
mounting rails)
v Depth: 59.7 cm (23.6 in.)
v Height: 13.2 cm (5.2 in.)
v Width: 48 cm (18.9 in.)
Heat output
v
390 watts (1330 BTU/hr)
Weight
v Standard storage server as shipped:
– Model 60U/60X: 39.10 kg (86.2 lb)
– Model 6LU/6LX: 34.34 kg (75.7 lb)
v
Unit weight:
– Model 60U/60X: 31.48 kg (69.4 lb)
– Model 6LU/6LX: 26.71 kg (58.9 lb)
Electrical input
v
Sine-wave input (50 to 60 Hz) is
required
v
Input voltage:
– Low range:
- Minimum: 90 V ac
- Maximum: 136 V ac
– High range:
- Minimum: 198 V ac
- Maximum: 264 V ac
– Input kilovolt-amperes (kVA)
approximately:
- Minimum configuration: 0.06 kVA
- Maximum configuration: 0.37 kVA
Environment
v Air temperature:
– Storage server on:
10° to 35°C
(50° to 95°F)
Altitude: 0 to 914 m (3000 ft.)
– Storage server on:
10° to 32°C
(50° to 90°F)
Altitude: 914 m (3000 ft.) to 2133 m
(7000 ft.)
v Humidity:
– 8% to 80%
– Noncondensing
Acoustical noise emissions values For
open bay (0 drives installed) and typical
system configurations (14 hard disk drives
installed).
v Sound power (idling):
– 6.3 bels (open bay)
– 6.5 bels (typical)
v Sound power (operating):
– 6.3 bels (open bay)
– 6.8 bels (typical)
v Sound pressure (idling):
– 47 dBA (open bay)
– 49 dBA (typical)
v Sound pressure (operating):
– 47 dBA (open bay)
– 53 dBA (typical)
These levels are measured in controlled
acoustical environments according ISO
7779 and are reported in accordance with
ISO 9296. The declared sound power
levels indicate an upper limit, below which
a large portion of machines operate.
Sound pressure levels in your location
might exceed the average 1-meter values
stated because of room reflections and
other nearby noise.
Heat output, airflow, and cooling
The maximum heat output of the DS4300 is 390 watts (1330 BTU/hr). Each
DS4300 (Model 60U/60X) and DS4000 EXP storage expansion enclosures
rack-mounted unit requires an airflow of 2.5 m
3
per minute (87 ft
3
per minute). The
input air temperature to all racks is recommended to be in the range 10°C through
35°C (50°F through 95°F), with a recommended operating temperature of 22°C
(72°F).
When racks that contain many DS4300 units are to be installed together, the
following requirements must be met to ensure that the DS4300 units are adequately
cooled:
v Air enters at the front of the rack and leaves at the back. To prevent the air that
is leaving the rack from entering the intake of another piece of equipment, racks
must be positioned in alternate rows, back-to-back and front-to-front. This
arrangement is known as “Cold Aisle / Hot Aisle” and is shown in Figure 7 on
page 14.
v Where racks are in rows, each rack must touch the rack that is next to it to
reduce the amount of hot air that can flow around from the back of the rack into
the intakes of the DS4300 units that are in that rack. It is recommended that
Chapter 1. Introduction
13