Apparatus and storage system for controlling acquisition of snapshot
Patent 7017076 Issued on March 21, 2006. Estimated Expiration Date: 
February 2, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 2, 2024. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesRecovery logging in the presence of snapshot files by ordering of buffer pool flushing Method and system for dynamic allocation of buffer storage space during backup copying Method of processing a synchronization point in a database management system to assure a database version using update logs from accumulated transactions Backup system that takes a snapshot of the locations in a mass storage device that has been identified for updating prior to updating Patent #: 5835953 InventorsAssigneeApplicationNo. 10768173 filed on 02/02/2004US Classes:714/15, State recovery (i.e., process or data file)707/202, Recoverability707/204, Archiving or backup714/6, Redundant stored data accessed (e.g., duplicated data, error correction coded data, or other parity-type data)714/19, Undo record711/162, Backup711/135Cache flushingExaminersPrimary: Beausoliel, RobertAssistant: Duncan, Marc Attorney, Agent or FirmForeign Patent References
International ClassG06F 11/00AbstractA DBMS performs a checkpoint process for maintaining consistency of data. A snapshot acquisition control program detects the checkpoint process externally to the DBMS and creates a snapshot in an external storage according to the timing of the checkpoint. Correspondence between checkpoints and snapshots is maintained in a CP-SH correspondence management table to make it possible to restore in a short time data at the time of an arbitrary checkpoint. | |
