Method and system for incremental time zero backup copying of data
a backup copying and data technology, applied in the field of incremental time zero backup copying of data, can solve the problems of requeuing data, affecting and high cost of backing up data within datasets, so as to maintain the availability of datasets
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With reference now to the figures and in particular with reference to FIG. 1, there is depicted a multiprocessing, multiprogramming data processing system according to the prior art. Such systems typically include a plurality of processors 1 and 3 which access external storage units 21, 23, 25, 27, and 29 over redundant channel demand / response interfaces 5, 7 and 9.
The illustrated embodiment in FIG. 1 may be provided in which each processor within the data processing system is implemented utilizing an IBM / 360 or 370 architected processor type having, as an example, an IBM MVS operating system. An IBM / 360 architected processor is fully described in Amdahl et al., U.S. Pat. No. 3,400,371, entitled Data Processing System, issued on Sep. 3, 1968. A configuration in which multiple processors share access to external storage units is set forth in Luiz et al., U.S. Pat. No. 4,207,609, entitled Path Independent Device Reservation and Reconnection in a Multi-CPU and Shared Device Access Syst...
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