CRU
Customer Replaceable Unit.
CSA
Canadian Standards Association.
ctrl
Control.
CU
Control unit.
D
danger (notice)
A word to call attention to possible lethal harm to people. Contrast with
attention
and
caution
.
data
Any representations such as characters or analog quantities to which
meaning is or might be assigned.
data buffer
The storage buffer in the control unit. This buffer is used to increase the
data transfer rate between the control unit and the channel.
data cartridge
A tape cartridge dedicated to storing data. Contrast with
cleaning cartridge
.
data check
A synchronous or asynchronous indication of a condition caused by invalid
data or incorrect positioning of data.
dc
Direct current.
degauss
To make a magnetic tape nonmagnetic by means of electrical coils carrying
currents that neutralize the magnetism of the tape.
degausser
A device that makes magnetic tape nonmagnetic.
degradation
A decrease in quality of output or throughput or an increase in machine
error rate.
degraded
Decreased in quality of output or throughput or increased machine error
rate.
deserialize
To change from serial-by-bit to parallel-by-byte.
detented
A part being held in position with a catch or lever.
device
Any hardware component or peripheral, such as a tape drive or tape
library, that can receive and send data.
device driver
A file that contains the code needed to use an attached device.
DIAG
Diagnostic section of maintenance information manual.
differential
See
High Voltage Differential (HVD)
.
direct access storage
A storage device in which the access time is independent of the location of
the data.
H-4
TS3310 Tape Library Maintenance Information
Содержание System Storage TS3310
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Страница 70: ...1 Home Sensor Flag a66mi080 1 Figure 3 11 Home Sensor Flag 3 8 TS3310 Tape Library Maintenance Information...
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Страница 300: ...1 2 a66mi015 Figure 8 58 Guide rollers on Y axis Picker Assembly 8 58 TS3310 Tape Library Maintenance Information...
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Страница 414: ...Control Module and Expansion Module Electrical System a66mi037 C 6 TS3310 Tape Library Maintenance Information...
Страница 415: ...Library Electrical Block a66mi038 Appendix C Library Diagrams C 7...
Страница 416: ...Library Control Blade a66mi042 C 8 TS3310 Tape Library Maintenance Information...
Страница 417: ...Library Control Blade Functions a66mi039 Appendix C Library Diagrams C 9...
Страница 418: ...Accessor Control Block a66mi040 C 10 TS3310 Tape Library Maintenance Information...
Страница 421: ...a66mi036 Appendix C Library Diagrams C 13...
Страница 422: ...Library Cables Library System Grounding a66mi041 C 14 TS3310 Tape Library Maintenance Information...
Страница 423: ...Library Power System a66mi044 Appendix C Library Diagrams C 15...
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Страница 530: ...Part Number 46X4072 Printed in USA GA32 0478 08 1P P N 46X4072...
Страница 531: ...Spine information IBM System Storage TS3310 Tape Library TS3310 Tape Library Maintenance Information Machine Type 3576...