User's Manual

Glossary Appendix A
STT20000N Product Manual Page 59
RLL (Run Length Limited)—A data encoding method where data bits are encoded so that certain constraints
are met with regard to the maximum and minimum distances between flux transitions.
Streaming—A method of recording on magnetic tape that maintains continuous tape motion without the
requirement to start and stop within an inter-block gap.
Tape Drive—A peripheral storage device that records data onto removable tape cartridges. Used to back up
a disk drive. (See also Disk Drive.)
Track—A longitudinal area on the tape along which magnetic signals can be serially recorded.
Track ID block—A block recorded in the Load Point and Early Warning regions to designate the track
number.
Uncorrected Bit Error Rate—The probability of a bit being in error, without using any error correction
techniques.
Underrun—A condition developed when the host transmits or receives data at a rate less than required by
the device for streaming operation.