Hi, all -
A RedHat server has storage from a network-attached storage array mounted over NFS. Read/writes to this mount are slow. How would you go about diagnosing the issue, what commands would you use and why? If you had access to the NFS-storage system what general things could you check for here?
This is an "exam cram" question (i.e. "homework"). I don't believe the OP doesn't really has a RedHat server; I don't think there's actually any performance issue. He's just looking for a stock answer to a test question.
In the real world, "facts" that you can "memorize" are FAR less important than "concepts" that you "learn". If you haven't already done so, I strongly urge you to get ahold of a Linux system (and, perhaps, a JBoss server) and experiment with them.