Re: Why are my boxes sooo slow sometimes? (w/ detailed 'Monitor' output)
Posted in 1996
Topics: Networking & sqlhosts Configuration, Platform-Specific Issues
> 'images' drives mounted (tabletop). Also 'ls' seems > to work fine but when I use 'ls -al' it take several minutes > to come back.(what is the difference?). This happens on 'tabletop' > (the main box) and 'image' (legacy names). When I've seen this problem it was related to NFS and TCP/IP. For some reason under AIX 3.2 there is a problem when you take a machine down to "init 0" and are running NFS. This problem was corrected with AIX 4. The solution for AIX 3.2 is to execute /etc/nfs.clean immediately before shutting down or immediately before running "init 0". Check through the crontab processes that run (or finish) around 7PM. See if the machine is being initialized to "init 0", or if TCP/IP is shutting down. Try adding the /etc/nfs.clean to the script immediately before the "init 0". I know there are other things that might cause this but this is what I ended up doing and it did solve the problem.