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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.

Patent No.:

US 6957301 B1

PDFFull Text
Expired
Date of Patent:
Oct. 18, 2005

Filed:

Sep. 18, 2002

System and method for detecting data integrity problems on a data storage device

Applicants:

Veera W. Deenadhayalan, Fremont, CA (US);

Mark A. Johnson, Rochester, MN (US);

Carlos Querol, Rochester, MN (US);

Michael Roble, Mazeppa, MN (US);

Mohan Rowlands, Union City, CA (US);

Inventors:

Veera W. Deenadhayalan, Fremont, CA (US);

Mark A. Johnson, Rochester, MN (US);

Carlos Querol, Rochester, MN (US);

Michael Roble, Mazeppa, MN (US);

Mohan Rowlands, Union City, CA (US);

Assignee:

International Business Machines Corporation, Armonk, NY (US);

Attorney:

Arthur J. Samodovitz

Primary Examiner:

Brian R Peugh

Int. Cl.
CPC ...
G06F012/00 ;
U.S. Cl.
CPC ...
Abstract

A storage controller and associated disk or disk portion where after the controller terminates its access to said disk or disk portion, data integrity problems in the disk or disk portion can be detected. Before host data associated with a write command is written from the cache memory to the disk or disk portion, an identity of the storage controller as a current user of the disk or disk portion and indication that the controller is operating in a mode it stores data in a cache is recorded on the disk or disk portion. If the storage controller is shut down abnormally, the record of the identity of the controller and the indication are not cleared. The storage controller is restarted or rebooted and the record is read to learn that the controller was using the disk or disk portion and operating in the foregoing mode before the shutdown.

Find Patent Forward Citations

Deenadhayalan, Veera. (2005). System and method for detecting data integrity problems on a data storage device (U.S. Patent No. 6957301). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6957301

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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