It is not so simple as "not supported". It usually works and only occasionally fails. LSF (Load Sharing Facility) is just a mechanism for controlling and dispatching multiple jobs to linux servers. The significance of the LSF component is just that multiple jobs on multiple machines may be trying to access the same file. Also, the "Input/output error" sounds like a very different message than I would get if it were not supported at all.

In reply to Re^2: flock "Input/output error" by Anonymous Monk
in thread flock "Input/output error" by Anonymous Monk

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