Hierarchy of a structure of a volume

Details Hierarchy of a structure of a volume Hierarchy of a structure of a volume

2007-01-16

2011-10-11

Patel, Hetul (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S162000

Reexamination Certificate

active

08037262

ABSTRACT:
A method, apparatus and system of a hierarchy of a structure of a volume is disclosed. In one embodiment, a system includes a physical volume, a structure to provide a mapping to a location of a data segment of the physical volume that may include a table having a hierarchy, a logical volume management module to define a logical volume as an arrangement of the physical volume, a snapshot module that may automatically generate a point-in-time image of the logical volume, may prompt the logical volume management module to create and insert a first table and a second table into the hierarchy of the structure, the first table may provide a set of updates to the logical volume, the second table may provide a set of updates to the point-in-time image, and a data processing system to perform a write IO (Input/Output) operation and a read IO operation.

REFERENCES:
patent: 7111136 (2006-09-01), Yamagami
patent: 7197502 (2007-03-01), Feinsmith
patent: 7694090 (2010-04-01), Hosouchi et al.
patent: 2007/0016754 (2007-01-01), Testardi

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