What Does This Error Mean?

[Drpepper99uk]

Hi,

Just went to visit my forum today and I get this error text appear:

Database error in vBulletin 4.0.3:

MySQL Error : Can't create/write to file '/tmp/#sql_759f_0.MYI' (Errcode: 30)
Issue Now Resolved!!!

Mike.

[Videx]

You should post what the solution was and how you found it, for the benefit of future searchers.