Client has a NetWare 6.5 server SP 7 or last one put out. Lately the server performance would drop to almost half the speed it was running after about 3 hrs of up time, I cannot see anything that point to any module or hardware that is causing this.
The PRB are where they are suppose to be.
The Dirty Cache is 0%
The only thing I can see is in the Busiest thread on the Kernel screen there is a Server [numbered anywhere from 01 to 20] that shows up with some fairly large numbers for memory usage. What i'm trying to do is to nail this down to what the actual application/module is.

On other screens there are supended semaphore. Can anyone explain this to me?

Any help would be greatly appreciated.