The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Oct. 19, 2010

Filed:

Nov. 27, 2006
Applicants:

Zvi Gabriel Benhanokh, Brookline, MA (US);

Michael Scharland, Franklin, MA (US);

Ran Margalit, Swarthmore, PA (US);

Ishay Kedem, Brookline, MA (US);

Leonard R. Linkens, Charlton, MA (US);

William P. Powers, Jr., Sutton, MA (US);

Inventors:

Zvi Gabriel Benhanokh, Brookline, MA (US);

Michael Scharland, Franklin, MA (US);

Ran Margalit, Swarthmore, PA (US);

Ishay Kedem, Brookline, MA (US);

Leonard R. Linkens, Charlton, MA (US);

William P. Powers, Jr., Sutton, MA (US);

Assignee:

EMC Corporation, Hopkinton, MA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A method for managing data in a computer system comprises identifying a data-set that has data unit protection that is suspected of having been corrupted, suspending a data unit protection process for the data-set; deferring re-establishing the data unit protection process for the data-set until issuance of a request for an I/O operation for the data unit; and re-establishing the data unit protection process for the data-set in response to the request and before the I/O operation is conducted. The data has a data unit protection invalidity indicator for indicating that the data-set has data unit protection that is suspected of having been corrupted; and the data unit protection process is suspended in the presence of the data-set protection invalidity indicator. Meta-data protection that is suspected of having been corrupted may be used to identify a corrupted data-set.


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