Error detection/correction and fault detection/recovery – Pulse or data error handling – Error/fault detection technique
Reexamination Certificate
2006-03-21
2006-03-21
Lamarre, Guy J. (Department: 2133)
Error detection/correction and fault detection/recovery
Pulse or data error handling
Error/fault detection technique
C711S114000
Reexamination Certificate
active
07017107
ABSTRACT:
A storage system comprises a storage array controller and a storage array, which includes multiple disk drives and disk drive controllers. The storage array controller issues scrubbing operation commands to one or more of the disk drive controllers. In response, each disk drive controller that receives a scrubbing operation command reads data from within a data range from at least one of the disk drives, calculates a new checksum for the data, and compares the new checksum to a preexisting checksum for the data. If the new checksum doesn't equal the preexisting checksum, the data within the data range is determined to be erroneous.
REFERENCES:
patent: 5195100 (1993-03-01), Katz et al.
patent: 5289478 (1994-02-01), Barlow et al.
patent: 5479651 (1995-12-01), Nakaguchi
patent: 5487160 (1996-01-01), Bemis
patent: 5588012 (1996-12-01), Oizumi
patent: 5596708 (1997-01-01), Weber
patent: 5632012 (1997-05-01), Belsan et al.
patent: 5819109 (1998-10-01), Davis
patent: 6148414 (2000-11-01), Brown et al.
patent: 2001/0047497 (2001-11-01), Larson et al.
patent: 2002/0016942 (2002-02-01), MacLaren et al.
patent: 2002/0032808 (2002-03-01), Verinsky et al.
patent: 467 706 (1991-07-01), None
patent: 519 670 (1992-06-01), None
patent: 547 844 (1992-12-01), None
“scsi—disk—SCSI direct access (disk) device driver,” HP-UX Release 9.0, Aug. 1992, 4 pages.
“Method and Means for Enhanced Data Scrubbing of RAID 0, and 5 Arrays,” Anonymous, XP-002251241, Research Disclosure, Mar. 2000.
Rettberg Randall D.
Talagala Nisha D.
Wu Chia Y.
Kowert Robert C.
Lamarre Guy J.
Meyertons Hood Kivlin Kowert & Goetzel P.C.
Sun Microsystems Inc.
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