A5000 random errors - How do I find out what it is?

[Ronin47]

So, I left my A5000 running the other day, came back to it later to find this:

And when I clicked on 'Describe' I got this:

It did allow me to continue as normal, but I have had it in the past where the machine is completely frozen and needs a power cycle to start again.

So the question is, where in RISC O/S can I find any logs that might help me get to the bottom of this? In Windows I'd be off to Event Viewer, and in anything Unixy, it's be /var/log/.

Does RISC O/S have an equivalent of event logs or /var/log/?

The machine is a fairly simple build, but has networking via an AKA 25 NIC and runs off a BlueSCSI with 2 drives. Other than that it is fairly standard.

Thanks