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How do I tune the size of the DLM hash table to increase the performance of my GFS/GFS2 filesystem in a RHEL 5 or 6 cluster?

Solution Verified - Updated 2017-07-25T15:31:34+00:00 -

Issue

How do I tune the size of the DLM hash table to increase the performance of my GFS/GFS2 filesystem?
I want to increase the size of the DLM hash table on my cluster but I cannot go over 2048.
How can I increase the GFS2 locktable buffers?

Environment

Red Hat Enterprise Linux (RHEL) 5 or 6 with the High Availability or Resilient Storage Add On
- RHEL 5: cman-2.0.115-118.el5_10.1 or higher
- RHEL 6: All cman releases

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