When using NFS on RHEL (any version) what is the difference between FS-Cache and Page Cache?

Solution Verified - Updated -

Issue

  • I thought NFS caching was not enabled by default in RHEL6, however it does seem as if the input file is NOT read from the NFS directly on each cycle when I don't manipulate the cache. Can you explain what's going on?

Environment

  • Red Hat Enterprise Linux 6.4

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