Hello Marc, In my beliefs that's exactly the main reason why people use Ceph: its gets more reliable the more nodes we put in the cluster. You should take a look in documentation and try to make use of placement rules, erasure codes or whatever fits your needs. I'm yet new in Ceph (been using for about 1 year) and I strongly tell you that your ideia just *may be* good, but may be a little overkill too =D
Regards, On Mon, May 14, 2018 at 2:26 PM Michael Kuriger <mk7...@dexyp.com> wrote: > The more servers you have in your cluster, the less impact a failure > causes to the cluster. Monitor your systems and keep them up to date. You > can also isolate data with clever crush rules and creating multiple zones. > > > > *Mike Kuriger* > > > > *From:* ceph-users [mailto:ceph-users-boun...@lists.ceph.com] *On Behalf > Of *Marc Boisis > *Sent:* Monday, May 14, 2018 9:50 AM > *To:* ceph-users > *Subject:* [ceph-users] a big cluster or several small > > > > > Hi, > > > > Hello, > > Currently we have a 294 OSD (21 hosts/3 racks) cluster with RBD clients > only, 1 single pool (size=3). > > > > We want to divide this cluster into several to minimize the risk in case > of failure/crash. > > For example, a cluster for the mail, another for the file servers, a test > cluster ... > > Do you think it's a good idea ? > > > > Do you have experience feedback on multiple clusters in production on the > same hardware: > > - containers (LXD or Docker) > > - multiple cluster on the same host without virtualization (with > ceph-deploy ... --cluster ...) > > - multilple pools > > ... > > > > Do you have any advice? > > > > > > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- João Paulo Bastos DevOps Engineer at Mav Tecnologia Belo Horizonte - Brazil +55 31 99279-7092
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