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From Frank Louwers <fr...@openminds.be>
Subject Re: CloudStack Design: Ceph and local storage
Date Fri, 17 Jun 2016 14:26:35 GMT
Has anyone looked at StorPool? They seem to be doing an OnApp-storage like setup…

Regards,

Frank


> On 17 Jun 2016, at 16:24, Dustin Wright <dwright@untangledtechnology.com> wrote:
> 
> Thank you for the valuable feedback. I have been considering the same setup
> Jeroen proposed.
> 
> I think what most of us want is something like onapp integrated storage. At
> least that is what it sounds like to me.
> 
> It would be neat if ACS had a system vm baked in for running ceph, or some
> type of distributed storage. Either VM or object storage. IMO, Running big
> expensive enterprise SAN for your block storage doesn't feel very
> cloud-like.
> 
> Dustin
> 
> On Fri, Jun 17, 2016 at 9:59 AM, Stephan Seitz <
> s.seitz@secretresearchfacility.com> wrote:
> 
>> Hi!
>> 
>> Independently from cloudstack, I'ld strongly recommend to not use ceph
>> and hypervisors on the very same machines. If you just want to build a
>> POC this is fine, but If you put load on it, you'll see unpredictible
>> behavior (at least on the ceph side) due to heavy I/O demands.
>> Ceph recommends at least 1 Core and 1 GB RAM as a rule of thumb for
>> each OSD.
>> BTW. I also won't run a ceph cluster with only two nodes. Your MON
>> should be able to form a quorum, so you'ld need at least three  nodes.
>> 
>> If you run a cluster with less than about 6 or 8 nodes, I'ld give
>> gluster a try. I've never tried it myself but I assume this should
>> be usable as "pre-setup" Storage at least with KVM Hosts.
>> 
>> cheers,
>> 
>> - Stephan
>> 
>> 
>> 
>> Am Freitag, den 17.06.2016, 13:36 +0200 schrieb Jeroen Keerrel:
>>> Good afternoon from Hamburg, Germany!
>>> 
>>> Short question:
>>> Is it feasible to use CloudStack with Ceph on local storage? As in
>>> “hyperconverged”?
>>> 
>>> Before ramping up the infrastructure, I’d like to be sure, before
>>> buying new hardware.
>>> 
>>> At the moment: 2 Hosts, each 2 6c XEON CPU, 24GB RAM and each have 6
>>> 300GB SAS drives.
>>> 
>>> According to CEPH, they advise bigger disks and separate storage
>>> “nodes”.
>>> CloudStack documentation says: Smaller, High RPM disks.
>>> 
>>> What would you advise? Buy separate “Storage Nodes” or  ramp up the
>>> current nodes?
>>> 
>>> Cheers!
>>> Jeroen
>>> 
>>> 
>>> 
>>> Jeroen Keerl
>>> Keerl IT Services GmbH
>>> Birkenstraße 1b . 21521 Aumühle
>>> +49 177 6320 317
>>> www.keerl-it.com
>>> info@keerl-it.com
>>> Geschäftsführer. Jacobus J. Keerl
>>> Registergericht Lubeck. HRB-Nr. 14511
>>> Unsere Allgemeine Geschäftsbedingungen finden Sie hier.
>>> 
>>> 
>> 


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