IBM 17011RS Maintenance Manual - Page 20

Additional, service, information, Specifications, Storage, subsystem, components - computers

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Additional service information This section provides additional service information about the DS300 storage subsystem. Specifications The following information is a summary of the specifications of the storage subsystem. Depending on the storage subsystem model, some specifications might not apply. Racks are marked in vertical increments of 1.75 inches. Each increment is referred to as a unit, or "U." A 1-U-high device is 1.75 inches tall. Table 1. DS300 storage subsystems operating specifications Size (measured from front of hard disk drive to rear of unit) v Depth: 584 mm (23.0 in.) v Height: 128 mm (5.0 in) v Width: 442 mm (17.4 in) Heat output v 558 watts (1903.96 Btu/hr) Weight v Standard storage server as shipped (without hard disk drives): 48.2 kg (106 lb) v Standard storage server as shipped (with 14 hard disk drives): 62.2 kg (137 lb) v Unit weight (without hard disk drives): 25.9 kg (57 lb) v Unit weight (with hard disk drives): 39 kg (86 lb) 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% Acoustical noise emissions: For maximum system configurations (14 hard disk drives installed). v Sound power (operating): 5.7 bels (typical) v Sound pressure (operating): 42 dBA (typical) Note: 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 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 - Approximate input kilovolt-amperes (kVA): - Minimum configuration: 0.06 kVA - Maximum configuration: 0.56 kVA Storage subsystem components The following sections show the components of the storage subsystem. The hot-swap features of the storage subsystem enable you to remove and replace hard disk drives and power supplies without turning off the storage subsystem. Therefore, you can maintain the availability of the system while a hot-swap device is removed, installed, or replaced. 6 IBM TotalStorage DS300 and DS400: Hardware Maintenance Manual

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Additional
service
information
This
section
provides
additional
service
information
about
the
DS300
storage
subsystem.
Specifications
The
following
information
is
a
summary
of
the
specifications
of
the
storage
subsystem.
Depending
on
the
storage
subsystem
model,
some
specifications
might
not
apply.
Racks
are
marked
in
vertical
increments
of
1.75
inches.
Each
increment
is
referred
to
as
a
unit,
or
“U.”
A
1-U-high
device
is
1.75
inches
tall.
Table
1.
DS300
storage
subsystems
operating
specifications
Size
(measured
from
front
of
hard
disk
drive
to
rear
of
unit)
v
Depth:
584
mm
(23.0
in.)
v
Height:
128
mm
(5.0
in)
v
Width:
442
mm
(17.4
in)
Heat
output
v
558
watts
(1903.96
Btu/hr)
Weight
v
Standard
storage
server
as
shipped
(without
hard
disk
drives):
48.2
kg
(106
lb)
v
Standard
storage
server
as
shipped
(with
14
hard
disk
drives):
62.2
kg
(137
lb)
v
Unit
weight
(without
hard
disk
drives):
25.9
kg
(57
lb)
v
Unit
weight
(with
hard
disk
drives):
39
kg
(86
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
–
Approximate
input
kilovolt-amperes
(kVA):
-
Minimum
configuration:
0.06
kVA
-
Maximum
configuration:
0.56
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%
Acoustical
noise
emissions:
For
maximum
system
configurations
(14
hard
disk
drives
installed).
v
Sound
power
(operating):
5.7
bels
(typical)
v
Sound
pressure
(operating):
42
dBA
(typical)
Note:
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
Storage
subsystem
components
The
following
sections
show
the
components
of
the
storage
subsystem.
The
hot-swap
features
of
the
storage
subsystem
enable
you
to
remove
and
replace
hard
disk
drives
and
power
supplies
without
turning
off
the
storage
subsystem.
Therefore,
you
can
maintain
the
availability
of
the
system
while
a
hot-swap
device
is
removed,
installed,
or
replaced.
6
IBM
TotalStorage
DS300
and
DS400:
Hardware
Maintenance
Manual