[Zope-dev] IOError [Errno 5]

Yo dudes, our zope server shows the following behaviour. 1) runs fine for (a few hours - a few days) 2) then starts spawning the following errors: Error Type: IOError Error Value: [Errno 5] Input/output error Does anybody know what may be causing this? the tracebacks don't make sense at all but is fails somewhere in the ZODB/Connection setstate method. Tia, Sloot.