Symmetric Phase Recording is a tape recording (
Computer storage media
In communications and computing a machine-readable medium, or computer-readable medium, is a medium capable of storing data in a format readable by a mechanical device (rather than human readable).
Examples of machine-readable media include mag ...
) technology developed by
Quantum Corporation
Quantum Corporation is a data storage, management, and protection company that provides technology to store, manage, archive, and protect video and unstructured data throughout the data lifecycle. Their products are used by enterprises, media and ...
packs data across a tape's recording surface by writing adjacent tracks in a herringbone pattern:
track 0 = \\\\\, track 1 = /////, track 2 = \\\\\, track 3 = /////, etc.
This eliminates crosstrack interference and guard bands so that more tracks of data can be
stored on a tape.
References
Further reading
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See also
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Azimuth recording
Azimuth recording is the use of a variation in angle between two recording heads that are recording data so close together on magnetic tape that crosstalk would otherwise likely occur. Normally, the head is perpendicular to the movement of the tape ...
,
Slant Azimuth recording
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Digital Equipment Corporation
Digital Equipment Corporation (DEC ), using the trademark Digital, was a major American company in the computer industry from the 1960s to the 1990s. The company was co-founded by Ken Olsen and Harlan Anderson in 1957. Olsen was president unt ...
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Digital Linear Tape
Digital Linear Tape (DLT; previously called CompacTape) is a magnetic-tape data storage technology developed by Digital Equipment Corporation (DEC) from 1984 onwards. In 1994, the technology was purchased by Quantum Corporation, who manufacture ...
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Linear Tape-Open
Linearity is the property of a mathematical relationship (''function
Function or functionality may refer to:
Computing
* Function key, a type of key on computer keyboards
* Function model, a structured representation of processes in a syste ...
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Digital Tape Format
Digital Tape Format is a magnetic tape data storage format developed by Sony. It uses a 1/2" wide tape, in a cassette with two reels, which is written and read with a helical scan process. The format is described by the ECMA 248 (adopted June 19 ...
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Helical scan
Helical scan is a method of recording high-frequency signals on magnetic tape. It is used in open-reel video tape recorders, video cassette recorders, digital audio tape recorders, and some computer tape drives.
History
Earl E Masterson from ...
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Magnetic tape
Magnetic tape is a medium for magnetic storage made of a thin, magnetizable coating on a long, narrow strip of plastic film. It was developed in Germany in 1928, based on the earlier magnetic wire recording from Denmark. Devices that use magne ...
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Magnetic tape data storage
Magnetic-tape data storage is a system for storing digital information on magnetic tape using digital recording.
Tape was an important medium for primary data storage in early computers, typically using large open reels of IBM 7 track, 7-track, ...
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Storage Technology Corporation
Storage media
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