ANORDNUNG VON SÄTZEN VARIABLER LÄNGE IN FESTEN BLÖCKEN

A method and an apparatus for packing variable size user data records into fixed size blocks on a storage medium. The invention includes the steps of receiving user data of variable record lengths along with error detection information; creating a data page for each user data record; building a map...

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Bibliographic Details
Main Authors BITNER, HAIM, HALL, DANA
Format Patent
LanguageGerman
Published 05.06.2003
Edition7
Subjects
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Summary:A method and an apparatus for packing variable size user data records into fixed size blocks on a storage medium. The invention includes the steps of receiving user data of variable record lengths along with error detection information; creating a data page for each user data record; building a map entry of record packing information for each data page; and storing each data page and its associated map within the same physical record on a storage medium. The data pages being stored in consecutive order and the map entries are stored in reverse order. A predetermined number of physical blocks are combined to form a logical block and a predetermined number of logical blocks form an entity.
Bibliography:Application Number: DE19956028260T