Incremental backup system
First Claim
1. A non-transitory computer-readable storage medium one or more computer-executable instructions that, when executed by at least one processor of a computing device, cause the computing device to carry out operations comprising:
- performing an incremental backup of a database relative to a previous backup, including;
initiating monitoring of a dirty list indicative of one or more portions of the database that have been modified since the previous backup, wherein initiating monitoring the dirty list includes sending, to a filter driver, a request to monitor the dirty list;
causing a reset of the dirty list;
obtaining a copy of the dirty list, wherein the copy is representative of the dirty list immediately prior to the reset, and wherein obtaining the copy of the dirty list includes receiving the copy of the dirty list from the filter driver; and
backing up only portions of the database identified by the copy of the dirty list.
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Accused Products
Abstract
Techniques relating to performing an incremental backup of a database relative to a previous backup are disclosed. The incremental backup may include initiating monitoring of a dirty list indicative of one or more portions of the database that have been modified since the previous backup, causing a reset of the dirty list, obtaining a copy of the dirty list, and backing up only portions of the database identified by the copy of the dirty list. The copy may be representative of the dirty list immediately prior to the reset.
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Citations
19 Claims
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1. A non-transitory computer-readable storage medium one or more computer-executable instructions that, when executed by at least one processor of a computing device, cause the computing device to carry out operations comprising:
performing an incremental backup of a database relative to a previous backup, including; initiating monitoring of a dirty list indicative of one or more portions of the database that have been modified since the previous backup, wherein initiating monitoring the dirty list includes sending, to a filter driver, a request to monitor the dirty list; causing a reset of the dirty list; obtaining a copy of the dirty list, wherein the copy is representative of the dirty list immediately prior to the reset, and wherein obtaining the copy of the dirty list includes receiving the copy of the dirty list from the filter driver; and backing up only portions of the database identified by the copy of the dirty list. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A non-transitory computer-readable storage medium one or more computer-executable instructions that, when executed by at least one processor of a computing device, cause the computing device to carry out operations comprising:
generating an incremental backup of a database, including; sending, to a filter driver, a request to monitor a dirty block list indicative of one or more particular files of the database that have been modified since a previous backup of the database; sending, to a database manager, a request for a full backup of the database, wherein the full backup causes a reset of contents of the dirty block list; receiving, from the filter driver, a copy of the dirty block list, wherein the copy includes the contents of the dirty block list immediately prior to the reset; and saving, as part of the incremental backup, a copy of the one or more particular files indicated by the copy of the dirty block list. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A method, comprising:
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receiving, at a filter driver from an incremental backup manager, a request to monitor a dirty list indicative of one or more pages of a database that have been modified since a previous backup of the database; saving, by the filter driver, a copy of the dirty list immediately prior to the dirty list being reset; and in response to the dirty list being reset, sending, by the filter driver, the copy of the dirty list to the incremental backup manager. - View Dependent Claims (17, 18, 19)
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Specification