So if your entire data center loses power... If you have any notice (local UPS, etc), you snapshot to disk. If you have no notice, you lose some number of trans

So if your entire data center loses power... If you have any notice (local UPS, etc), you snapshot to disk. If you have no notice, you lose some number of transactions depending on your data size, snapshot frequency and disk speed. Seconds or minutes, but probably not hours. Future versions of VoltDB will do more address this single-data-center catastrophe scenario.