System for efficiently transferring data between a high speed ch

Details System for efficiently transferring data between a high speed ch System for efficiently transferring data between a high speed ch

1986-05-22

1989-08-22

Williams, Jr., Archie E.

Boots, shoes, and leggings

G06F 300, G06F 1312, G06F 1314

Patent

active

048601934

ABSTRACT:
A buffer memory is used to store data from the input/output device arrayed corresponding to the data rate of said input/output data device. A threshold is selected for beginnig an unload cycle of the buffer memory which will permit said buffer memory contents to be completely transferred at the higher channel data rate to the channel during the remaining time additional data is being accumulated in the memory. The threshold selection is adaptive such that subsequent data block lengths are utilized to calculate a new threshold maintaining data transfer rates from the input/output device into the channel at an optimum value.

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Brochure "4500 Tape Subsystem" Technical Data, Mar. 1982, Storage Technology Corporation.

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