Data storage array apparatus storing error information...

Details Data storage array apparatus storing error information... Data storage array apparatus storing error information...

2005-02-22

2005-02-22

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C714S006130, C714S006130, C714S054000, C711S114000, C711S154000, C711S168000

Reexamination Certificate

active

06859888

ABSTRACT:
A data storage array apparatus including multiple disks and writing/reading striped data and parity data onto/from the multiple disk devices, each having a storage area divided into multiple blocks, blocks across the multiple disks forming a group, the apparatus made up of: writing/reading means for writing/reading the striped data and the parity data in a group in accordance with an access request from the outside; error information generation means for generating error information indicating the presence/absence of an error caused by a writing operation by the writing/reading means and storing the error information in a memory; judgement means for, at each writing operation, judging whether the error information should be written to a predetermined group; and control means for controlling the writing/reading means to read error information from the memory and write the error information to the predetermined group according to a result obtained from the judgement means.

REFERENCES:
patent: 5581690 (1996-12-01), Ellis et al.
patent: 5838891 (1998-11-01), Mizuno et al.
patent: 6330693 (2001-12-01), Lindsay
patent: 6629273 (2003-09-01), Patterson
patent: 6725392 (2004-04-01), Frey et al.

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