A variety of tests can be run or environments set up. 

1. runregression-net

Usage on server:
   llsetup.sh  marcus-echo-server.cfg

with marcus-echo-server.cfg:

   NETWORK=elan
   LOCALHOST=4
   SERVER=4
   SETUP_OST=y
   OSTTYPE=obdecho


Usage on client: 
runregression-net  marcus-echo-client.cfg

with marcus-echo-client.cfg:

   NETWORK=elan
   LOCALHOST=5
   SERVER=4
   SETUP_OSC=y

If things are alright it goes through all the tests single threaded,
multithreaded, getattr and brw (both read and write).

2. How to build .cfg scripts:
The various .cfg scripts in the tests/ directory can be used as building
blocks for full configurations.  For example, the above configurations are:

   cat elan-server.cfg obdecho.cfg > marcus-echo-server.cfg
   cat elan-client.cfg client-echo.cfg > marcus-echo-client.cfg

You _could_ specify multiple .cfg files as the parameters to llsetup if
you are doing something uncommon, but it is probably just easer to build
a whole config file in one shot, edit it as needed, and use that file instead.

For a loopback setup with a mounted filesystem, you could do something like:

   cat net-local.cfg mds.cfg obdext2.cfg client-mount.cfg > uml.cfg

The order of the specified .cfg files does not matter.

Since the .cfg script is a shell script, you can add conditional setup in
case you want to avoid changing your configuration if you need to run on
a different host.  You could, for example, have marcus-echo-server.cfg:

   NETWORK=elan
   HOST=`hostname | sed "s/\..*//"`
   case $HOST in
   dev*) LOCALHOST=`echo $HOST | sed "s/dev//"`
         SERVER=$LOCALHOST
	 NETWORK=elan ;;
   *)    LOCALHOST=$HOST
         SERVER=$LOCALHOST
         NETWORK=tcp ;;
   esac
   SETUP_OST=y
   OSTTYPE=obdecho

You would, of course, need a marcus-echo-client.cfg to match.

3. runtests

The runtests script does a series of simple file-based tests using
a filesystem.  You need to use a configuration which includes a real
OST and MDS setup, and an OSC mount.  For example, a configuration
marcus-obd-server.cfg:

   SETUP_MDS=y
   NETWORK=elan
   LOCALHOST=4
   SERVER=4
   MDSFS=ext3
   MDSDEV=/tmp/mds
   MDSSIZE=10000
   OSTDEV=/tmp/ost
   OSTSIZE=10000
   OSTFS=ext2
   OSTTYPE=obdext2
   SETUP_OST=y
   SETUP_LDLM=y

As with the echo test, you run "sh llsetup.sh marcus-obd-server.cfg" on
the server to configure it.

For marcus-obd-client.cfg you only need to include the client data:

   NETWORK=elan
   LOCALHOST=5
   SERVER=4
   SETUP_OSC=y
   OSCMT=/mnt/lustre
   SETUP_MOUNT=y
   SETUP_LDLM=y

You run the test via "sh runtests marcus-obd-client.cfg".