Method of making a backup copy of a memory over a plurality of copying sessions
First Claim
1. A method for making a backup copy in an archive memory of at least one computer memory comprised of a number of blocks of memory, comprising the steps of:
- partitioning the computer memory into a plurality of segments, each of which constitutes a predetermined percentage of said computer memory;
making individual partial backup copies of the blocks in each of said segments during a respective one of a plurality of spaced intervals separated over periods of time; and
making incremental backup copies within each interval of all blocks other than the blocks for which a partial backup copy is made and whose addresses are in a predetermined address range that have changed since the last interval.
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Accused Products
Abstract
A method is provided for making a backup copy of the content of a memory, e.g., a database, such that the memory is divided into a plurality of segments and a backup copy of individual ones of the segments is made during a respective one of a plurality of independent backup sessions. Each segment may be a predetermined percentage of the memory, and the independent sessions may be separated from one another by a predetermined duration of time, e.g., a day. A full backup of the memory is thus completed during a last one of the backup sessions. An incremental backup copy may be made for each of the blocks of segments whose contents has changed since a previous backup session.
719 Citations
7 Claims
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1. A method for making a backup copy in an archive memory of at least one computer memory comprised of a number of blocks of memory, comprising the steps of:
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partitioning the computer memory into a plurality of segments, each of which constitutes a predetermined percentage of said computer memory; making individual partial backup copies of the blocks in each of said segments during a respective one of a plurality of spaced intervals separated over periods of time; and making incremental backup copies within each interval of all blocks other than the blocks for which a partial backup copy is made and whose addresses are in a predetermined address range that have changed since the last interval. - View Dependent Claims (2, 3, 4)
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5. A method for making a backup copy in an archive memory of a computer memory which includes a plurality of blocks, comprising the steps of:
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partitioning the computer memory into a plurality of segments; making partial backup copies of the blocks in each of the segments within respective spaced intervals that occur in a sequence; and making incremental backup copies within each interval of changes in blocks other than those for which a partial backup copy is made and whose addresses are in a predetermined address range that have occurred since the last interval. - View Dependent Claims (6, 7)
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Specification