A client just experienced a complete failure of an APC AP7911A switched/metered rack power distribution unit (PDU). This obviously took all of the connected equipment down with it. The equipment is fine, as well as the upstream UPS units.
In situations where it's not possible to balance devices across multiple power feeds/PDUs/UPS units (e.g. switches with single power supplies, lack of high-line power feeds, etc.), how do you mitigate failures like this? This was a single rack installation in a less-than-ideal computer room, but typical for most small/medium businesses. Should one plan for individual PDU failure, or is it just something that gets dealt with when it happens?