Rebuilding redundant disk arrays using distributed hot spare...

Details Rebuilding redundant disk arrays using distributed hot spare... Rebuilding redundant disk arrays using distributed hot spare...

2005-12-13

2005-12-13

Iqbal, Nadeem (Department: 2114)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C711S133000

Reexamination Certificate

active

06976187

ABSTRACT:
A method and system that allows the distribution of hot spare space across multiple disk drives that also store the data and redundant data in a fully active array of redundant independent disks, so that an automatic rebuilding of the array to an array of the identical level of redundancy can be achieved with fewer disk drives. The method configures the array with D disk drives of B physical blocks each. N user data and redundant data blocks are allocated to each disk drive, and F free blocks are allocated as hot spare space to each disk drive, where N+F<=B, and ((D−M)×F)>=N. Thus, rebuilding of data and redundant blocks of a failed disk drive in the free blocks of the remaining disk drives is enabled after M disk drive failures.

REFERENCES:
patent: 5265098 (1993-11-01), Mattson et al.
patent: 5479653 (1995-12-01), Jones
patent: 5485571 (1996-01-01), Menon
patent: 5689678 (1997-11-01), Stallmo et al.
patent: 5941994 (1999-08-01), DeKoning et al.
patent: 5959860 (1999-09-01), Styczinski
patent: 6079029 (2000-06-01), Iwatani et al.
patent: 6092215 (2000-07-01), Hodges et al.
patent: RE36846 (2000-08-01), Ng et al.
patent: 6154853 (2000-11-01), Kedem
patent: 6609213 (2003-08-01), Nguyen et al.

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