Am Sat, 19 Oct 2013 23:22:12 -0700 schrieb John R Pierce pierce@hogranch.com:
In our development lab, I am installing 4 new servers, that I want to use for hosting KVM. each server will have its own direct attached raid. I'd love to be able to 'pool' this storage, but over gigE, I probably shouldn't even try.
I'm not sure if somebody has re-built RHEV on CentOS (couldn't find it with a quick google-search).
RHEV = http://www.redhat.com/products/cloud-computing/virtualization/
Then, on top of that you'd need RedHat Storage Server. It's a stabilized build of GlusterFS with Enterprise-Support - and Enterprise-price...
Also, you could try OpenStack - but I'm not sure if it's worth the hassle and if four noodes is actually enough to have a usable setup.
RedHat Storage Server recommends 10G ethernet, BTW.
For your setup, I'd invest more in the hardware itself (redundant PSU, more redundancy in the disks, more powerful RAID-controller with battery-backed cache, the more hardware is hot-pluggable, the better etc..)
Oh, and I'd love to hear success-stories of people who actually use RHEV+RHSS. Any kind of distributed storage, actually.