Environment (Models 500 And 600); Altitude; Heat Output (Maximum); Capacities Of Disk Drive Modules - IBM 7133 Series Service Manual

Environment (Models 500 and 600)

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Operating
Environment
Air temperature 16°C to 32°C
(61°F to 90°F)
Relative 8% to 80%
Humidity noncondensing
Maximum wet bulb 23°C (73°F)

Altitude

Operating
Environment
Altitude 0 to 2133 m
(from sea level) (0 to 7000 ft)

Heat Output (Maximum)

Base configuration
Expanded configuration
Maximum configuration

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
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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
Nonoperating
Environment
10°C to 43°C
(50°F to 109°F)
8% to 80%
noncondensing
27°C (80°F)
Nonoperating
Environment
–305 to 12 192 m
(–1000 to 40 000 ft)
140 watts (478 Btu per hour)
275 watts (938 Btu per hour)
480 watts (1638 Btu per hour)
Actual Formatted
Type
1.1 GB 1 126 337 536 bytes
2.2 GB 2 255 098 368 bytes
4.5 GB 4 512 701 440 bytes
9.1 GB 9 100 191 744 bytes
Storing
Environment
1°C to 60°C
(34°F to 140°F)
5% to 80%
noncondensing
29°C (84°F)
Storing
Environment
–305 to 12 192 m
(–1000 to 40 000 ft)
Capacity
Shipping
Environment
–40°C to 60°C
(–40°F to 140°F)
5% to 100%
condensing but
not precipitating
29°C (84°F)
Shipping
Environment
–305 to 12 192 m
(–1000 to 40 000 ft)