On 2014.11.20 07:21, T L wrote: > Andrew - > Thanks. My main box also has an AMD CPU, as it was the most cost effective way > to get ECC RAM. Hmmm -- speaking of which, I'd be interested in your and > Linda's thoughts on the necessity of ECC when using ZFS. ZFS doesn't make a difference. ECC RAM is better than non-ECC RAM, and your data will be messed up if your non-ECC RAM fails regardless. ZFS will usually see that something is wrong and complain about it, even if it can't fix the problem.