Error detection/correction and fault detection/recovery – Data processing system error or fault handling – Reliability and availability
Reexamination Certificate
2006-11-27
2010-10-19
Duncan, Marc (Department: 2113)
Error detection/correction and fault detection/recovery
Data processing system error or fault handling
Reliability and availability
C714S015000
Reexamination Certificate
active
07818609
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.
REFERENCES:
patent: 5684944 (1997-11-01), Lubbers et al.
patent: 6014756 (2000-01-01), Dottling et al.
patent: 6446237 (2002-09-01), Menon
patent: 6904547 (2005-06-01), Gittins et al.
patent: 7337371 (2008-02-01), Kuo et al.
patent: 7487394 (2009-02-01), Forhan et al.
patent: 7529982 (2009-05-01), Coatney et al.
patent: 2005/0283650 (2005-12-01), Zhang et al.
patent: 2008/0201608 (2008-08-01), Forhan et al.
patent: 2009/0254721 (2009-10-01), Suzuki et al.
Benhanokh Zvi Gabriel
Kedem Ishay
Linkens Leonard R.
Margalit Ran
Powers, Jr. William P.
Duncan Marc
EMC Corporation
Muirhead and Saturnelli LLC
LandOfFree
Methods and systems for managing corrupted meta-data in a... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Methods and systems for managing corrupted meta-data in a..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Methods and systems for managing corrupted meta-data in a... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4211137