Data processing: database and file management or data structures – Database design – Data structure types
Reexamination Certificate
2010-05-27
2011-10-11
Nguyen, Kim (Department: 2163)
Data processing: database and file management or data structures
Database design
Data structure types
C707S793000
Reexamination Certificate
active
08037013
ABSTRACT:
Locking allocated data space is disclosed. An indication is received that certain previous version data is required to be retained. A map of metadata records, each associated with a journaling process write of previous version data which write includes previous version data required to be retained, is built. In some embodiments, the map associates a write time with each record in the map. A reclamation process checks to determine whether any storage proposed to be reclaimed is included in the map of record identifiers. In some embodiments, the determination is made based at least in part on the write time associated in the map with at least a first record identifier in time-sorted order.
REFERENCES:
patent: 5465120 (1995-11-01), Schultheiss
patent: 5778392 (1998-07-01), Stockman et al.
patent: 6507847 (2003-01-01), Fleischman
patent: 6564215 (2003-05-01), Hsiao et al.
patent: 6571260 (2003-05-01), Morris
patent: 6704755 (2004-03-01), Midgley et al.
patent: 6950833 (2005-09-01), Costello et al.
patent: 7124272 (2006-10-01), Kennedy et al.
patent: 7647466 (2010-01-01), Rao et al.
patent: 2002/0029227 (2002-03-01), Multer et al.
patent: 2002/0083037 (2002-06-01), Lewis et al.
patent: 2002/0138544 (2002-09-01), Long
patent: 2003/0097360 (2003-05-01), McGuire et al.
patent: 2004/0030951 (2004-02-01), Armangau
patent: 2004/0049507 (2004-03-01), Cole
patent: 2004/0068501 (2004-04-01), McGoveran
patent: 2004/0168058 (2004-08-01), Margolus
patent: 2004/0220931 (2004-11-01), Guthridge et al.
patent: 2004/0267745 (2004-12-01), HoogerBrugge et al.
patent: 2005/0149525 (2005-07-01), Verma et al.
patent: 2005/0193236 (2005-09-01), Stager et al.
patent: 2005/0223004 (2005-10-01), McKenney et al.
patent: 2006/0161821 (2006-07-01), Oshins et al.
patent: 2007/0276878 (2007-11-01), Zheng et al.
EMC Corporation
Nguyen Kim
Van Pelt & Yi & James LLP
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