Accelerated tape backup restoration

Details Accelerated tape backup restoration Accelerated tape backup restoration

2005-09-06

2011-11-29

Tsai, Henry W (Department: 2184)

Electrical computers and digital data processing systems: input/

Input/output data processing

Input/output command process

C711S137000, C711S213000, C712S207000, C712S237000

Reexamination Certificate

active

08069270

ABSTRACT:
According to the present invention, methods and apparatus are provided improving reading of a remote tape device by a host through multiple fibre channel switches. A fibre channel switch preemptively sends read requests to a tape device before read requests are received from a host. Flow control, buffer management, and error handling mechanisms are implemented to allow accelerated tape back up restoration while working to prevent buffer overflow and underflow.

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