Thanks koitsu! BTW, do you ever sleep?
The system is on a UPS and write caching is disabled, just in case. High performance isn't an issue, but high availability is, so I try to keep it running all the time.
I'll keep an eye on things and see if perhaps upgrading to 11.2 of RST makes any difference. (Reading through the RST forums on Intel's site really makes it seem like a buggy POS).