[LUDOC-301] Expand the How to Test Lustre wiki page

Wed, 21 Sep 2022 20:00:48 +0000

The public wiki page which describes how to test Lustre, https://wiki.hpdd.intel.com/display/PUB/Testing+a+Lustre+filesystem, is missing some very critical details. Namely:

The fact that you need to install "pdsh" on all nodes.
How you get can "pdsh" especially if on RHLE 7.x (I ended up just building it manually)
The best approach to dealing with auto-logging in with pdsh (i.e. setting up SSH for auto-login)
The need to install "ssh-askpass" if it is not present yet
Changes required if the default first user is not user/group 500:500. RHEL 7.1 has first user as 1000:1000.
The need to add TCP port 988 to the firewall exceptions list when using TCP
An example test config file if using real nodes and not just running in loopback.
Where the tests directory gets installed from the RPM (/lib64/lustre).
Where do tests get logged by default. It is not at all obvious.

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