IBM 7133 Series, Руководство по обслуживанию

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Environment (Models 500 and 600)
Operating
Environment
Nonoperating
Environment Storing
Environment Shipping
Environment
Air temperature 16°C to 32°C
(61°F to 90°F) 10°C to 43°C
(50°F to 109°F) 1°C to 60°C
(34°F to 140°F) –40°C to 60°C
(–40°F to 140°F)
Relative
Humidity 8% to 80%
noncondensing 8% to 80%
noncondensing 5% to 80%
noncondensing 5% to 100%
condensing but
not precipitating
Maximum wet bulb 23°C (73°F) 27°C (80°F) 29°C (84°F) 29°C (84°F)
Altitude
Operating
Environment
Nonoperating
Environment Storing
Environment Shipping
Environment
Altitude
(from sea level) 0 to 2133 m
(0 to 7000 ft) –305 to 12 192 m
(–1000 to 40 000 ft) –305 to 12 192 m
(–1000 to 40 000 ft) –305 to 12 192 m
(–1000 to 40 000 ft)
Heat Output (Maximum)
Base configuration 140 watts (478 Btu per hour)
Expanded configuration 275 watts (938 Btu per hour)
Maximum configuration 480 watts (1638 Btu per hour)
Capacities of Disk Drive Modules
The capacities that are given here for the different types of disk drive module apply when
data is stored in 512-byte logical blocks.
Disk Drive Module
Type
Actual Formatted
Capacity
1.1 GB 1 126 337 536 bytes
2.2 GB 2 255 098 368 bytes
4.5 GB 4 512 701 440 bytes
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9.1 GB
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9 100 191 744 bytes
Power Sequencing
All the disk drive modules start their power sequence when the input voltage is inside the
specified limits. Their motors are started under control of the SSA adapters in the using
system. To prevent the need for excessive electrical current, the disk drive module motors
are not all started together. A maximum of four motors in the front of the 7133 and four
motors in the back of the 7133 can be started together. At least 10 seconds must elapse
before the next group of motors is started. Normally, all the disk drive module motors are
running in less than 30 seconds from the time the 7133 is turned on.
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7133 Service Guide