Disk array apparatus

Details Disk array apparatus Disk array apparatus

1994-11-03

1995-12-26

Beausoliel, Jr., Robert W.

Excavating

39518204, 371 491, G06F 1134, G06F 1110, H03M 1302

Patent

active

054796113

ABSTRACT:
In a disk array apparatus, a microprocessor includes a repairing section for causing, upon receiving the report of the content of occurrence of an error from a physical device interface controller unit, an array data controller unit to repair read data by using received data from physical devices except for the one which has reported an unrecoverable read error. The microprocessor also includes a transfer section for transferring the repaired data obtained by the repairing section to a host apparatus as read data, a writing section for writing the repaired data in a data buffer unit, a write end determining section for determining the end of the write of the repaired data from the count value of a data block counter unit, a reallocating section for reallocating a replacement sector to the physical device which has reported the error, and a readout section for reading out the repaired data written in the data buffer unit and storing the readout data in the replacement sector allocated by the reallocating section, after the write end determining section determines the end of the write.

REFERENCES:
patent: 5210860 (1993-05-01), Pfeffer et al.
patent: 5220569 (1993-06-01), Hartness
patent: 5233618 (1993-08-01), Glider et al.
patent: 5333305 (1994-07-01), Neufeld
patent: 5341381 (1994-08-01), Fuller
patent: 5373512 (1994-12-01), Brady
patent: 5392244 (1995-02-01), Jacobson et al.
patent: 5396620 (1995-03-01), Burghart et al.
patent: 5402428 (1995-03-01), Kakuta et al.
Patterson, et al.; "A Case for Redundant Arrays of Inexpensive Disks (RAID)"; Report No. UCD/CSD 87/391, Dec. 1987, Computer Science Division (EECS), University of California, Berkeley.

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