That's not a hardware issue, therefore it's outside the scope of these particular forums.
Your brief description appears to talk about a network configuration,
or at least a resource sharing issue (the impact of one system's access to other systems).
Consider posting your question in the Network Forums.
<a href="http://supportforum.sun.com/network/" target="_blank">http://supportforum.sun.com/network/</a>
Specifically, there is a forum for Naming and NFS issues.