Preservation of file locks during checkpoint and restart of...

Details Preservation of file locks during checkpoint and restart of... Preservation of file locks during checkpoint and restart of...

2011-04-26

2011-04-26

Bengzon, Greg (Department: 2444)

Electrical computers and digital processing systems: multicomput

Computer network managing

Computer network access regulating

C709S219000, C707S609000, C707S674000, C707S690000, C707S809000, C707S827000, C707S704000, C707S821000

Reexamination Certificate

active

07933991

ABSTRACT:
A computer-implemented method, apparatus, and computer-usable program code for preserving file locks while moving a software partition from an origination network file system client data processing system to a destination network file system client data processing system is provided. A request for a file is received. A determination is made as to whether the request is for a file that is within a software partition. Responsive to a determination that the request is for a file within a software partition, a determination is made as to whether the request is a lock request. Responsive to a determination that the request is a lock request, a determination is made as to whether the software partition is being restarted. Responsive to a determination that the software partition is being restarted, the lock request is blocked from being sent to a remote network file system server.

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