Electrical computers and digital processing systems: multicomput – Multicomputer data transferring via shared memory
Reexamination Certificate
2008-07-15
2008-07-15
Nguyen, Phuoc H (Department: 2143)
Electrical computers and digital processing systems: multicomput
Multicomputer data transferring via shared memory
C709S216000, C711S004000, C711S005000, C711S111000, C711S154000, C711S171000
Reexamination Certificate
active
07401124
ABSTRACT:
A method to write information to two geographically separated virtual tape servers, where the method provides a file to a virtual tape controller, writes that file to a first virtual tape server, and queues a copy job for the file in the virtual tape controller. Subsequently, the method provides the file to a second virtual tape server. The method sets a throughput threshold, determines the actual VTC throughput, and determines if the actual VTC throughput exceeds the throughput threshold. The method sets an age threshold and determines if the copy job age is greater than that age threshold. If the actual VTC throughput is greater than the throughput threshold and the copy job age is greater than the age threshold, then the method decreases the first adjustable host bandwidth and/or the second adjustable host bandwidth, otherwise the method restores the bandwidth to a nominal value.
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Bello Keith A.
Hanson Dean L.
Kishi Gregory T.
Peake Jonathan W.
International Business Machines - Corporation
Nguyen Phuoc H
Quarles & Brady LLP
Regelman Dale F.
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