Bill, that is for sharing your findings I've also been curious as well and
haven't had much luck finding reference hardware or expected performance
from HCI builds. I just put together three top end r720s with 256gb ram
and two 2tb SSDs in jbod per host with 10gbe backend for gluster. I just
finished racking the servers and haven't had a chance to start the Ovirt
install yet but hope to get to it within the next couple of weeks.. I've
been a bit worried about the performance of gluster, I'm hoping I won't be
disappointed.
Jayme
On Sat, Jun 23, 2018, 10:45 AM , <william.dossett(a)gmail.com> wrote:
I have deployed a HCI environment several times now as I wanted to
get
some idea of disk performance with Gluster/
On a Dell R720 3 node cluster with H710 PERC controller and 8 x 2TB 7200
RPM SATA drives.
My first test was with the 8 drives configured as H/W RAID 6 and I
configured Gluster as RAID 6 – quite a lot of redundancy but that was just
my first deployment
Running IOMeter for 24 hours using all in one access specification I got
240 IOPs. Pretty good for SATA drives.
I then broke the RAID and configured 8 virtual disks, one per physical and
then deployed Gluster as JBOD – I am not sure how resilient that is, but I
assume in a 3 node cluster failures to tolerate would be one.
This gave me 267 IOPs.
I don’t know that much about the internals of Gluster, but when I first
asked about this there didn’t seem to be much knowledge of what
configuration would be best for HCI. I plan to do more research and tests
on this, but for what its worth for now, I am going down the JBOD route
with no H/W RAID.
Regards
Bill
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