We have a machine running SCO Unix Release 5. We have been having intermintent problems with it, it will freeze and the only thing we can do is switch it off and back on again. It now takes two or three attempts to reboot and once up and running it seems fine. Can anyone shed some light on this for me? Could it be a memory problem or is it more likely to be a disk problem?

Thanks in anticipation of a response.

It would be helpful to look at the log files and system messages to answer your question.

Also, we would need to know the hardware configuration, including I/O devices.