Chapter 2—Site Requirements Environmental Requirements
February 2019 Site Preparation Guide—Spectra T950B Library
32
BlueScale Vision Camera Access One BlueScale Vision camera is included
with the main frame. Additional cameras can be installed in the expansion
frames. To comply with EMC requirements, provide a shielded Category 5
(10/100BaseT connection) data-grade cable or a similar Category 5 cable
from an active Ethernet network to each camera.
ENVIRONMENTAL REQUIREMENTS
The following sections list the general environmental specifications for the
library.
Air Flow Air flows through the library from front to back. In data centers
using a hot aisle/cold aisle layout, position the library so that the cold aisle
is in front of the library (cold air in), and the hot aisle is behind the library
(hot air out).
Air Quality Keep the location as free of airborne particulates as possible.
To eliminate obvious sources of particulates, do not permit anyone to
smoke, eat, or drink near the storage area, and do not place the library near
a copier or printer that may emit toner and paper dust.
Temperature, Humidity, and Altitude The library is equipped with
internal fans that operate as much as is necessary for the number of DBAs
installed. The fans keep the library’s internal temperature within
specifications as long as the data center environment is within
specifications. The following tables outlines the necessary data center and
storage area specifications.
Operating Environmental Specification
Humidity 20% to 80% (non-condensing)
Humidity gradient Less than 10% per hour
Ambient temperature
a
a. The maximum ambient temperature must not exceed 86º F (30º C) when G2 F-QIPs are installed in the
library.
LTO: 50° F to 90° F (10° C to 32° C)
TS11x0 Technology: 61° F to 90° F
(16° C to 32° C)
Maximum temperature change rate
b
b. The temperature and humidity must be allowed to stabilize in the specified ambient environment for
24 hours.
18° F per hour (10° C per hour),
non-condensing
Maximum wet bulb temperature 77° F (25° C)
Altitude Sea level to 10,000 ft (3,048 m)
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