Log for selective management of specific address in a shadow sto

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395489, 39518216, 39518204, 395488, 371 32, 371 402, 364DIG1, G06F 1108, G06F 1114

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active

055465366

ABSTRACT:
A log for managing data in a shadow set of storage media includes a system for maintaining a log of address information associated with at least one write command received from one of a plurality of data processing devices. The system for maintaining a log of address information includes a device for receiving a write command from a data processing device, a device which writes data associated with the write command in a section of one of the storage media, and a device which writes address information in a log indicative of the location of that section. A device is provided which then implements a management operation on data stored on one of the storage media in accordance with the address information stored in the log.

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Research Disclosures No. 296, Dec. 1988, New York, N.Y., US; RD 29647 (Anonymous): "Data Integrity During Mirror Synchronisation".
Haskin, "Virtual Disk Casts a Long Shadow" (Aug. 1988), pp. 49-52.

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