cfgmgr
Configuration manager.
channel command
An instruction that directs a data channel, controller, or device to complete an operation or set of
operations.
char
Character.
CHK
Check.
CISC
Program offering that preceded RISC.
client engineer
Synonym for customer engineer.
cm
Centimeter.
CM
Cartridge memory.
concurrent
Refers to diagnostic procedures that can be run on one controller while the rest of the subsystem
remains available for customer applications.
contingent connection
Connection between a channel path and a drive that is caused when a unit check occurs during an I/O
operation.
controller
Device that provides the interface between a system and one or more tape drives.
Occasionally referred to as control unit.
CP
Circuit protector.
Cartridges present.
CP sensor
Cartridge-present sensor.
cradle
Term for rack hardware that can receive a 3592 drive canister.
CRC
cyclic redundancy check.
An error detection technique that is used by the data-link layer to determine whether all the bits that
were sent were also received.
CRR
Channel request register.
crypto officer
Title for a process that acts on behalf of the operator to complete cryptographic initialization or
management functions (FIPS definition).
CSP
Certified spare part.
Critical security parameter (encryption).
CSR
Customer support representative.
Synonym for customer engineer.
CSU
Customer setup.
300 IBM 3592 TS1140, TS1150, TS1155, and TS1160 Tape Drives: Maintenance Information
