[Linux-cluster] stress-testing GFS ?

[Birger Wathne]

I would like to put my cluster through a little controlled hell before 
declaring it ready for production.

Is there any kind of stress-test/verification procedure to 'certify' 
shared storage with GFS?
Ideally there would be some distributed software that could be run in a 
cluster to check that the shared storage behaves as expected under all 
kinds of load. Throughput, concurrent writing, GFS locking, file system 
locking, etc...
Something that could interface with GFS internals to see that everything 
was 'right' at every step.

Since I have seen nothing about the issue, I assume something like that 
doesn't exist, so... Any ideas on how to stress test GFS?
Homegrown scripts? Known problems with hardware that a test should look for?


-- 
birger