On Tue, Apr 10, 2007 at 05:18:26 -0400, Brian Porter <brian@xxxxxxxxxx> wrote: > I disagree about the importance of a battery backed cache.. Use a UPS > and nut or something similar. Battery backed cache protects the data a lot closer to where it needs to be protected than a UPS does. This is one of the features that makes hardware raid attractive in the first place. If you don't need battery backed cache, there is a good chance that you don't need a raid controller either.