Check out the Isilon Advisor tool:
Recommended for best practices:
I don't know if the feature only shows up in 22.214.171.124 and later (this is where I found out about it), but there is a command called "isi healthcheck"
you can run it to check all by typing:
isi healthcheck run --checklist=all
then run (until you see a completed status):
isi healtcheck list
It will give you a list of what is "wrong" with your hardware... You can then view the file that is listed at the top of your evaluation (in /ifs/.ifsvar/modules/health-check/results/evaluations/)
I am running into some minor issue with it, but so far, so good.