Do you have any idea what kind of disk performance you need? Cassandra with RAID 0 is a fairly common configuration (Al's awesome tuning guide has a blurb on it https://tobert.github.io/pages/als-cassandra-21-tuning-guide.html), so if you feel comfortable with the operational overhead it seems like a solid choice.
To clarify, though, by "just one", do you mean just using one of two available ephemeral disks available to the instance, or are you evaluating different instance types based on one disk vs two? On Fri, Jan 29, 2016 at 4:33 PM, Eric Plowe <eric.pl...@gmail.com> wrote: > My company is planning on rolling out a C* cluster in EC2. We are thinking > about going with ephemeral SSDs. The question is this: Should we put two in > RAID 0 or just go with one? We currently run a cluster in our data center > with 2 250gig Samsung 850 EVO's in RAID 0 and we are happy with the > performance we are seeing thus far. > > Thanks! > > Eric >
