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Thanks, The 3 servers are new Lenovo units with redundant PS backed by two huge UPS units (on for each bank of power supplies). I think the chances of losing two nodes is incredibly slim, and in that case a Disaster Recovery from offsite backups would be reasonable. My requirements are about 2TB, highly available (so that I can reboot one of the 3 servers without taking down services). Beyond

On 09/04/18 19:02, Vincent Royer wrote: > Thanks, > > I suppose what I'm trying to gain is some clarity on what choice is > best for a given application.? How do I know if it's better for me to > use a raid card or not, to include flash-cache on it or not, to use > ZFS or not, when combined with a small number of SSDs in Replica 3. > > How few is "small