Tandberg Data Magnum 224, Руководство по эксплуатации продукта, Страница: 225 / 278

A
UGUST
2007 M
AGNUM
224, S
TORAGE
L
IBRARY
T24,
OR
S
TORAGE
L
OADER
2U
207
E
NVIRONMENTAL
S
PECIFICATIONS
P
ARTICULATE
C
ONTAMINATION
L
IMITS
The ambient operating environment for the library should not exceed the
particulate counts specified for the tape drive. For more information, refer to
the LTO Ultrium tape drive documentation available from the following web
sites:
IBM — www.storage.ibm.com/tape/lto/oem/index.html
Hewlett Packard — www1.hp.com/storage/tapestorage.html
A
COUSTIC
N
OISE
L
IMITS
The overall, averaged A-weighted sound pressure level (in decibels) for the
library does not exceed the upper limits specified in
Table A-7 .
Relative Humidity 20% to 80%
Non-condensing 10% to 90%
Non-condensing 10% to 90%
Non-condensing
Wet Bulb 26° C (79° F) max 29° C (84° F) max 29° C (84° F) max
Altitude –306 m to +3,048 m
(–1,004 ft to +10,000 ft) –306 m to +3,048 m
(–1,004 ft to +10,000 ft) –306 m to +12,192 m
(–1,004 to +40,000 ft)
a
These measurements assume that the library is installed in accordance with the instructions in this manual.
b
The library is in its original packaging. The packaging is designed to protect the library from condensation caused by extreme temperature
variations (15° C or more).
When the library is moved from a cold storage environment to a warm operating environment, it must be
acclimated in its packaging for at least 12 hours before opening to prevent serious condensation damage from occurring.
c
The library has been unpacked.
d
The library has not been unpacked. The transportation period does not exceed 72 hours.
e
The upper ambient operating temperature limit of +40° C (+104° F) is specified at +914.4 m (+3,000 feet), derated linearly to +24° C
(+75.2° F) at +3,048 m (+10,000 feet).
f
The data cartridges’ temperature and humidity must be allowed to stabilize in the specified ambient environment for 24 hours.
Table A-6
Environmental specifications
Specification Operating
a
Storage
b
or
Non-Operating
c
Transportation
d
Table A-7
Acoustic Noise Limits
Operating Mode dBA
a
a
dBA is the average A-weighted sound pressure level over the following frequency range: 5 Hz to
12.5 KHz.
The library is powered on and idle. 50
The robot is moving and the tape drive is operating in streaming
mode. 60
b
b
Represents a maximum sustained operational level.