Recovering multi-volume data sets during volume recovery

Details Recovering multi-volume data sets during volume recovery Recovering multi-volume data sets during volume recovery

1995-06-06

1997-07-01

Beausoliel, Jr., Robert W.

G06F 1100

Patent

active

056446969

ABSTRACT:
A system for recovering multi-volume data sets that are stored in one or more volumes that have failed with a substantial level of automation and flexibility. Data can be recovered from backup storage when multiple volumes fail, as in a "catastrophic" data loss. For each volume, all data sets partially or completely stored on the selected volume prior to a failure of that volume are identified. Each single-volume data set stored on the selected volume prior to the failure is restored from backup storage. Upon identifying a multi-volume data set whose beginning segment was stored on the selected volume, the entire data set is restored. Data can also be recovered from backup storage when a particular volume fails, such as after a "head crash." All data sets partially or completely stored on the selected volume prior to a failure of that volume are identified. Each single volume data set stored on the selected volume prior to the failure is recovered from backup storage. For each multi-volume data set having a segment stored on the selected volume prior to the failure, a predetermined message is issued to a human operator. Alternatively, multi-volume data sets are recovered if consistent. Otherwise, if valid data has been lost, a warning message is issued.

REFERENCES:
patent: 4310883 (1982-01-01), Clifton et al.
patent: 4408276 (1983-10-01), Plow
patent: 4507751 (1985-03-01), Gawlick et al.
patent: 4587628 (1986-05-01), Archer et al.
patent: 4601012 (1986-07-01), Aiken
patent: 4750106 (1988-06-01), Aiken
patent: 4868744 (1989-09-01), Reinsch et al.
patent: 4908826 (1990-03-01), Hertrich
patent: 4916605 (1990-04-01), Beardsley et al.
patent: 4935941 (1990-06-01), Jones
patent: 4974156 (1990-11-01), Harding et al.
patent: 5138710 (1992-08-01), Kruesi et al.
patent: 5239649 (1993-08-01), McBride et al.
patent: 5321570 (1994-06-01), Behr et al.
patent: 5321832 (1994-06-01), Tanaka et al.
patent: 5327570 (1994-07-01), Foster et al.
patent: 5379418 (1995-01-01), Shimazaki et al.
patent: 5388258 (1995-02-01), Larsson et al.
patent: 5388260 (1995-02-01), Monahan et al.
patent: 5404502 (1995-04-01), Warner et al.
patent: 5454099 (1995-09-01), Myers et al.
patent: 5535381 (1996-07-01), Kopper
IBM Technical disclosure Bulletin, "Fault-tolerant Binary Search for Indexed Sequential Files", vol. 25, No. 3A, Aug. 1982.
IBM Technical disclosure Bulletin, "Material Logistics System", vol. 29, No. 4, Sep. 1986.
IBM Technical disclosure Bulletin, "Restoring data From DASD Volumes Having Hardware Errors", vol. 31, No. 7, Dec. 1988.
IBM Technical Disclosure Bulletin, "Bus Data Integrity and Fault Tolerance", vol. 34, No. 12 May 1992.
IBM Technical Disclosure Bulletin, "Multiple Levels of Serialization for Backing Up open Data Sets", vol. 37, No. 06A, Jun. 1994.

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