Your Veritas file system for /tmp is full - no more space left. This could possibly (probably) hang your system unless you fix it.
If you are not the administrator - then contact that person.
If you are the admin - well, it looks like you have some learning to do since you didn't know about vxfs and a full file system.
Some links that could possibly help -
Veritas Support (click on the knowledge base search).
Post what OS and version you are running (along with Veritas version) and maybe someone can give more info.
Check with your boss - see if you have a contract with your vendor or Veritas.
Since it's /tmp that is full, you can cd /tmp and see if there is anything you could possibly delete (rm). Try ls -ltcar to list the files in /tmp from oldest to newest. You may have a core file or a temporary file someone is using to build a report...
