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Track (disk drive)

Figure 1. Disk structures:(A) Track(B) Geometrical sector(C) Track sector(D) Cluster
Figure 1. Disk structures:
(A) Track
(B) Geometrical sector
(C) Track sector
(D) Cluster
A disk drive track is a circular path on the surface of a disk or diskette on which information is magnetically recorded and from which recorded information is read.

A track is a physical division of data in a disk drive, as used in the Cylinder-Head-Record (CCHHRR) addressing mode of a CKD disk. The concept is concentric, through the physical platters, being a data circle per each cylinder of the whole disk drive. In other words, the number of tracks on a single surface in the drive exactly equals the number of cylinders of the drive.

Tracks are subdivided into blocks (or sectors, pages) (see: Storage block and Virtual page).

The term track is sometimes prefaced with the word logical (ie: "3390-9 has 3 logical tracks per physical track") to emphasize the fact when used as an abstract concept, not a track in the physical sense.

See also

ja: ( ) pt:Trilha (disco)






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