SYSTEM AND METHOD FOR CREATING SELECTIVE SNAPSHOTS OF DATABASE Russian patent published in 2018 - IPC G06F17/30 G06F12/08 

FIELD: data processing.

SUBSTANCE: group of inventions relates to tools for creating selective snapshots of a database. Technical result is achieved by a disclosed system, which comprises: a determining unit for determining whether a snapshot process is configured to access a selected segment of one or more segments, an assigning unit for assigning a positive mapping status to an accessed segment for which the determining unit has determined that it is accessed by the snapshot process and for assigning a negative mapping status to a non-accessed segment for which the determining unit has determined that it is not accessed by the snapshot process, a snapshot unit for creating a snapshot, wherein creating the snapshot comprises a step of forking the snapshot process with an address space that comprises a subset of the one or more segments, wherein a non-mapped segment that has been assigned a negative mapping status is not mapped in the address space.

EFFECT: reduced computational cost when creating a snapshot.

13 cl, 9 dwg