Patent ID: 6282609
Filing Date: 2001-08-28
Classification: G06F

Abstract:
A computer implemented method of locating a machine-readable target data record stored on a direct access storage device (DASD), said DASD containing a portion of a logically ordered sequence of digital data stored on a backup sequential storage medium, the portion of the logically ordered sequence including:at least one data record;a record header preceding each data record, each data record and each record header having a beginning address in the direct access storage device;said method of locating the target data record comprising:reading a first record header at a first address to determine whether the first record header corresponds to a target data record;if the first record header does not correspond to the target data record, repeatedly advancing to succeeding record headers one record header at a time; andreading the succeeding record headers to find a record header corresponding to the target data record.