Method and apparatus for striping data onto a plurality of...

Details Method and apparatus for striping data onto a plurality of... Method and apparatus for striping data onto a plurality of...

2007-12-11

2007-12-11

Iqbal, Nadeem (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C711S114000

Reexamination Certificate

active

11017976

ABSTRACT:
A method and apparatus for reconstructing lost data from a failed disk drive in a disk array. The disk drive array formed into at least one parity group including data extents divided into data segments and parity segments that are generated from the data segments. The method includes providing access to the array, identifying a failed drive and failed parity group associated with the failed drive, and retrieving the parity segments from operative drives in a parity group containing the failed drive in an instance data is being read from the failed parity group. Parity information is reconstructed for the failed disk drive from the parity segments on the operative disk drives, and data segments of the extent associated with the failed disk drive is reconstructed from the reconstructed parity information, and the parity segments and data segments on the operative disk drives of the failed parity group.

REFERENCES:
patent: 4761785 (1988-08-01), Clark et al.
patent: 5305326 (1994-04-01), Solomon et al.
patent: 5581778 (1996-12-01), Chin et al.
patent: 5671377 (1997-09-01), Bleidt et al.
patent: 5954822 (1999-09-01), Yashiro et al.
patent: 6158017 (2000-12-01), Han et al.
patent: 6253375 (2001-06-01), Gordon et al.
patent: 6351838 (2002-02-01), Amelia
patent: 6353895 (2002-03-01), Stephenson
patent: 6408400 (2002-06-01), Taketa et al.
patent: 6530035 (2003-03-01), Bridge
patent: 6675318 (2004-01-01), Lee
patent: 6742081 (2004-05-01), Talaga et al.
patent: 6772286 (2004-08-01), Sasamoto et al.
patent: 6871263 (2005-03-01), Dandrea
patent: 2002/0066050 (2002-05-01), Lerman et al.
patent: 2002/0157113 (2002-10-01), Allegrezza
patent: 2003/0046497 (2003-03-01), Dandrea

Affiliated with

Also associated with

Rating

Method and apparatus for striping data onto a plurality of... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for striping data onto a plurality of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for striping data onto a plurality of... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3897980