That doesn't really address my point. I'm talking about the mainframe (or other high-end server) situation. Granted, you were specifically referring to "mid-r

That doesn't really address my point. I'm talking about the mainframe (or other high-end server) situation. Granted, you were specifically referring to "mid-range Compaq/HP servers", so perhaps I didn't understand what mid-range meant. If they're just a branded/enterprise version of commodity servers, I'm missing how those are representative of hardware HA of the kind that the OC finds almost always terrible. If they're non-commodity, then I'm curious what their price tags are and if "far more than one box" equates to at least several hundred (else there's still a decent enough chance of not getting bitten by even a 1% failure rate).