System for granting bandwidth for real time processes and assign

Details System for granting bandwidth for real time processes and assign System for granting bandwidth for real time processes and assign

1996-05-06

2000-04-25

Lee, Thomas C.

Electrical computers and digital processing systems: multicomput

Computer-to-computer protocol implementing

Computer-to-computer data transfer regulating

710107, 710110, 710113, 710 29, G08F 1314

Patent

active

060555777

ABSTRACT:
A method and apparatus for coordinating access to a storage system in a real time processing system is disclosed. In an apparatus including a file server, a storage system, a real time process, and a non-real time process, an apparatus and method is disclosed for coordinating accesses to the storage system, the method includes the steps of: 1) computing an available data rate from a peak bandwidth data transfer rate for the storage system, 2) receiving a first access request from the real time process, the first access request including a request for a requested data rate, 3) granting the first access request if the requested data rate is less than or equal to the available data rate, and 4) allowing the real time process to directly access the storage system at the requested data rate. In addition, the method of the present invention includes the steps of: 1) receiving a second access request from the non-real time process, the second access request including information indicating an identity of a desired file, 2) assigning an assigned data rate to the non-real-time process, the assigned data rate being less than or equal to the available data rate, and 3) allowing the non-real time process to directly access the storage system at the assigned data rate.

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