Storage controller for performing dump processing

Details Storage controller for performing dump processing Storage controller for performing dump processing

1994-07-05

1996-09-10

Black, Thomas G.

Boots, shoes, and leggings

39518211, 39518203, 395600, 395650, 364DIG1, 3642384, 3642685, 3642821, G06F 1300

Patent

active

055553893

ABSTRACT:
A storage controller for controlling a storage device storing a plurality of data records and a dump process executed by using this storage device, the storage controller, before a dump process, setting data records to be dumped in a generation fixed status in response to a request from the processor, and when an update request is made on a data record set in a generation fixed status, stores a before-update data record as a generation fixed data record in an unused area of the storage device or in a cache memory or the like before starting an update process, and when receiving a data record read request for the dump process from the processor, examining the presence of a stored generation fixed data record corresponding to the data record specified by the request, and if there is the corresponding generation fixed data record, transferring the data record to the processor in reply to the read request.

REFERENCES:
patent: 4618926 (1986-10-01), Kubo et al.
patent: 5109336 (1992-04-01), Guenther et al.
patent: 5193171 (1993-03-01), Shinmura et al.
patent: 5252812 (1993-10-01), Nakamura
patent: 5377353 (1994-12-01), Yamaguchi

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