I have a Dell-branded EMC AX150i disk array that refuses to enable its write cache. After calling Dell support, it turns out that the system will refuse to enable its write cache unless an APC SmartUPS is connected to the system.
However, the AX150 is in a data center and the data center won't allow UPSes to be installed in a customer cabinet; that is, to be attached to their UPSes. (I'm not an electrical engineer, but there's something about UPSes confusing the main DC UPS to think that there's a power fault.)
So I need to know if there is a way to force-enable the write cache on an AX150. (The Dell tech says no.)
Failing that, does anyone know of a SmartUPS communication emulator that I can use to fake the AX150 into thinking that there's a UPS there?