Adding more nodes from the beginning would probably be a good idea.
On Wed, Jun 20, 2018 at 12:58 PM Nick A wrote:
>
> Hello Everyone,
>
> We're planning a small cluster on a budget, and I'd like to request any
> feedback or tips.
>
> 3x Dell R720XD with:
> 2x Xeon E5-2680v2 or very similar
The
Another great thing about lots of small servers vs. few big servers is that
you can use erasure coding.
You can save a lot of money by using erasure coding, but performance will
have to be evaluated
for your use case.
I'm working with several clusters that are 8-12 servers with 6-10 SSDs each
runn
This is true, but misses the point that the OP is talking about old
hardware already - you're not going to save much money on removing a 2nd
hand CPU from a system.
On Wed, 20 Jun 2018 at 22:10, Wido den Hollander wrote:
>
>
> On 06/20/2018 02:00 PM, Robert Sander wrote:
> > On 20.06.2018 13:58,
On 06/20/2018 02:00 PM, Robert Sander wrote:
> On 20.06.2018 13:58, Nick A wrote:
>
>> We'll probably add another 2 OSD drives per month per node until full
>> (24 SSD's per node), at which point, more nodes.
>
> I would add more nodes earlier to achieve better overall performance.
Exactly. No
* More small servers give better performance then few big servers, maybe
twice the number of servers with half the disks, cpus and RAM
* 2x 10 gbit is usually enough, especially with more servers. that will
rarely be the bottleneck (unless you have extreme bandwidth requirements)
* maybe save money
On 20.06.2018 13:58, Nick A wrote:
> We'll probably add another 2 OSD drives per month per node until full
> (24 SSD's per node), at which point, more nodes.
I would add more nodes earlier to achieve better overall performance.
Regards
--
Robert Sander
Heinlein Support GmbH
Schwedter Str. 8/9b,
Hello Everyone,
We're planning a small cluster on a budget, and I'd like to request any
feedback or tips.
3x Dell R720XD with:
2x Xeon E5-2680v2 or very similar
96GB RAM
2x Samsung SM863 240GB boot/OS drives
4x Samsung SM863 960GB OSD drives
Dual 40/56Gbit Infiniband using IPoIB.
3 replica, MON
