G - Physics – 06 – F
Patent
G - Physics
06
F
G06F 11/16 (2006.01) G06F 11/10 (2006.01) G06F 11/14 (2006.01) G11B 20/18 (2006.01)
Patent
CA 2095181
ABSTRACT ERROR CORRECTING CODE TECHNIQUE FOR IMPROVING RELIABILITY OF A DISK ARRAY An array of disk drives organized as a data storage system including n parity drives forming n parity chains where each parity drive maintains the parity bits of a different combination of data drives and each data drive is included in at least two parity chains, and where no two data drives are associated with the same combination of parity chains. The present ECC technique requires only n parity drives for up to 2n - n - 1 data drives for a maximum total of 2n - 1 disk drives. Each data drive is included in two or more parity chains and each parity chain is unique. The n parity drives are taken two at a time, then three at a time, and so on up to n at a time, each combination being unique, until all of the data drives are associated with parity chains. The ECC technique is implemented using a disk controller which is coupled to the array of disk drives and constantly maintains the parity information on the parity drives. The disk controller selects appropriate parity chains to reconstruct the data of any two data drives that fail, and also performs the reconstruction onto replacement disk drives. Data striping or distribution of the data and parity information on the disk drives further increases the performance of a disk array using the present ECC technique.
Krueger Mark S.
Neufeld E. David
Compaq Computer Corporation
Finlayson & Singlehurst
LandOfFree
Error correcting code technique for improving reliability 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 Error correcting code technique for improving reliability of..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Error correcting code technique for improving reliability of... will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1662018