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What are the default and maximum values for rsize and wsize with NFS mounts?

Solution Verified - Updated 2017-01-09T03:07:30+00:00 -

Issue

How to increase the default read/write (block) size on RHEL with NFS.
What is the maximum rsize or wsize in Red Hat Enterprise Linux?

Environment

Red Hat Enterprise Linux 7
Red Hat Enterprise Linux 6
Red Hat Enterprise Linux 5
Red Hat Enterprise Linux 4

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