Efficient mechanisms for detecting phantom write errors

Details Efficient mechanisms for detecting phantom write errors Efficient mechanisms for detecting phantom write errors

2006-03-28

2006-03-28

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

Reexamination Certificate

active

07020805

ABSTRACT:
A method for detecting a phantom write error in a data storage system is described. In one embodiment, upon receiving a read command pertaining to a data block stored on a storage medium, two version identifiers associated with the data block are compared. A first version identifier is stored within the data block and a second version identifier is stored outside of the data block. If the version identifiers do not match, the possible occurrence of a phantom write error is detected.

REFERENCES:
patent: 5197148 (1993-03-01), Blount et al.
patent: 5201044 (1993-04-01), Frey et al.
patent: 5206939 (1993-04-01), Yanai et al.
patent: 5720026 (1998-02-01), Uemura et al.
patent: 5796934 (1998-08-01), Bhanot et al.
patent: 5889934 (1999-03-01), Peterson
patent: 5995308 (1999-11-01), Assouad et al.
patent: 6009542 (1999-12-01), Koller et al.
patent: 6343343 (2002-01-01), Menon et al.
patent: 6347359 (2002-02-01), Smith et al.
patent: 6397309 (2002-05-01), Kedem et al.
patent: 6408416 (2002-06-01), Morley et al.
patent: 6418519 (2002-07-01), Cadden et al.
patent: 6467060 (2002-10-01), Malakapalli et al.
patent: 6484185 (2002-11-01), Jain et al.
patent: 6553511 (2003-04-01), DeKoning et al.
patent: 6584544 (2003-06-01), Morley et al.
patent: 6587962 (2003-07-01), Hepner et al.
patent: 6606629 (2003-08-01), DeKoning et al.
patent: 6629273 (2003-09-01), Patterson
patent: 6684289 (2004-01-01), Gonzalez et al.
patent: 6687791 (2004-02-01), Morrison
patent: 6728922 (2004-04-01), Sundaram et al.
patent: 6874001 (2005-03-01), Narang et al.
patent: 6880060 (2005-04-01), Talagala et al.
patent: 2003/0070042 (2003-04-01), Byrd
patent: 2003/0140299 (2003-07-01), Duncan et al.
patent: 2003/0145270 (2003-07-01), Holt et al.
patent: 2003/0163777 (2003-08-01), Holt
patent: 2003/0188216 (2003-10-01), Elko et al.
patent: 2003/0221155 (2003-11-01), Weibel et al.
patent: 2004/0123032 (2004-06-01), Talagala et al.
patent: 2004/0153746 (2004-08-01), Talagala et al.
EMC, “The EMC CLARiiON Data Integrity Difference”, (May 2001),pp 1-11.

Affiliated with

Also associated with

Rating

Efficient mechanisms for detecting phantom write errors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Efficient mechanisms for detecting phantom write errors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Efficient mechanisms for detecting phantom write errors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3595020