RAID 0 regardless of instance type* On Friday, January 29, 2016, Eric Plowe <eric.pl...@gmail.com> wrote:
> 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 > <javascript:_e(%7B%7D,'cvml','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> 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 >>> >> >>
