Bryan, Correct, I should have clarified that. I'm evaluating instance types based on one SSD or two in RAID 0. I thinking its going to be two in RAID 0, but as I've had no experience running a production C* cluster in EC2, I wanted to reach out to the list.
Sorry for the half-baked question :) Eric On Friday, January 29, 2016, Bryan Cheng <br...@blockcypher.com> wrote: > 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 > <javascript:_e(%7B%7D,'cvml','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 >> > >
