> > You are right - it would indeed be desirable to have more than 3 GB of > RAM on that system. However it is not obvious to me that having that > little RAM should cause I/O failure? Why? That it would make the > machine slow is to be expected - and especially so given that I had to > jack the swap up to some 40 GB. But I do not necessarily see why I > should have outright failures due solely to not having more RAM. > If I were you, I would be monitoring the system's memory usage. Maybe some software component has a memory leak which keeps worsening until a reboot cleans it. Also, I wouldn't discard the possibility of a physical memory problem. Can you test it?