IBM TS2290, Руководство пользователя, Страница: 95 / 157

When storage equipment is shipped in a climate where the outside temperature is below the dew point of the destination (indoor location), water condensation can form
on the cooler inside and outside surfaces of the equipment when the equipment is brought indoors.
Sufficient time must be allowed for the shipped equipment to gradually reach thermal equilibrium with the indoor environment before you remove the shipping bag and
energize the equipment. Follow these guidelines to properly acclimate your equipment:
Leave the system in the shipping bag. If the installation or staging environment allows it, leave the product in the full package to minimize condensation on or within
the equipment.
Allow the packaged product to acclimate for 24 hours
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. If visible signs of condensation (either external or internal to the product) are seen after 24 hours, acclimate
the system without the shipping bag for an extra 12 - 24 hours or until no visible condensation remains.
Acclimate the product away from perforated tiles or other direct sources of forced air convection to minimize excessive condensation on or within the equipment.
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Unless otherwise stated by product-specific installation instructions.
Note: Condensation is a normal occurrence, especially when you ship equipment in cold-weather climates. All IBM products are tested and verified to withstand
condensation that is produced under these circumstances. When sufficient time is provided to allow the hardware to gradually acclimate to the indoor environment, no
issues with long-term reliability of the product should occur.
Location requirements
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Information for planning the installation and layout of your LTO tape drive, including various specifications for optimal performance.
Specifications for tape cartridges are given in Environmental and shipping specifications for tape cartridges .
Security
The equipment must be located so that access to the equipment can be controlled and monitored. Consider all of these recommended security measures when you’re
determining where to locate your tape library.
Location
You’re responsible for the security of this tape drive, and the cartridges used with the tape drive. To prevent unauthorized access to data, IBM® recommends
locating the library and all shelf-resident cartridges in an area where access is controlled.
Onsite security measures
You’re also responsible for evaluating, selecting, and implementing security features, administrative procedures, and appropriate controls in application systems
and communication facilities.
Electrical specifications
Table 1. LTO tape drive power supply requirements
FC SAS
Power® Supply 5 V dc 12 V dc
Tolerance 10% 10%
Voltage Ripple/Noise
(50 Hz - 20 MHz)
60 m pp 125 m pp
Supply Current®
Minimum (steady rate) (A)
2.0 A 0.0 A
Maximum (steady rate) (A) 4.1 A FH
4.0 A HH
TBD
Peak (instantaneous power) 4.5 A < 1 ms 4.0 A < 1 ms
Drive temperature and humidity specifications
Table 2. Drive temperature and humidity specifications
Mode
Dry-Bulb
Temperature
Maximum Temperature Rate of
Change
Relative Humidity (non-
condensing)
Maximum Humidity Rate of
Change
Altitude (max)
Recommended
environment 16°C to 25°C 5°C an hour 20% to 80%
22°C dew point max
5%/hour with no condensation 3050 m
Allowable environment 16°C to 32°C 5°C an hour 20% to 50% 5%/hour with no condensation 3048 m
Shipping -40°C to 60°C 10% to 90%
non-condensing
12192 m
Table 3. Equipment environment specification
Equipment environment specification
Product power off
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Dry-bulb temperature Relative humidity Maximum wet-bulb temperature
5 to 45°C (40 to 113°F) 8% to 80% RH 26°C (79°F)
Product operation (equipment is powered on)
Dry-bulb temperature
Humidity range, non-condensing Maximum dew
point
temperature
4
Maximum wet-
bulb
temperature
4
Maximum
elevation
IBM TS22xx - TS2290, TS2280, and TS2270 89