Method of allowing point-in-time view of data on a disk

Method of allowing point-in-time view of data on a disk

A method allows point-in-time viewing of session data for multiple sessions being stored on a disk. Session bits are set for the session data in memory which points to the data at any particular point in time, and this can be done for multiple sessions. In order to make the session data persistent,...

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Hauptverfasser: MYERS J. BRANDON, KEESEE BRUCE ALLEN, MCGRATH PAUL THOMAS, WAGNER MICHAEL PAUL
Format: Patent
Sprache:eng
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INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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creator MYERS J. BRANDON
KEESEE BRUCE ALLEN
MCGRATH PAUL THOMAS
WAGNER MICHAEL PAUL
description A method allows point-in-time viewing of session data for multiple sessions being stored on a disk. Session bits are set for the session data in memory which points to the data at any particular point in time, and this can be done for multiple sessions. In order to make the session data persistent, separate session bits are stored in a portion of a disk reserved for such session bits. Thus, in the event of failure where session bits which are stored in volatile memory such as RAM, are lost, the duplicate copy set in the non-volatile memory can be used to recreate the session once the failure is corrected.
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subjects INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
title Method of allowing point-in-time view of data on a disk
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