Just my quick two cents here. Technically this is possible which doesn't mean it's a good idea. I wouldn't use such a setup in a productive environment. I don't think they'll really save a lot and adding the latency etc on top not sure this is what they're really looking for.
Just for testing and for giving it a try, sure but for the rest I would go with a clear "no" instead of encouraging them to do that. Maybe you can tell use more about their use-case? What are they looking for, how large should this get, access protocols etc. Kai On 22.08.19 17:12, Brett Chancellor wrote: > It's certainly possible. It makes things a little more complex though. > Some questions you may want to consider during the design.. > - Is the customer aware this won't preserve any data on the luns they > are hoping to reuse. > - Is the plan to eventually replace the SAN with JBOD, in the same > systems? If so you may want to make your luns look like the eventual > drive size and count. > - Is the plan to use a few systems with SAN and add standalone systems > later? Then you need to calculate expected speeds and divide between > failure domains. > - Is the plan to use a couple of hosts with SAN to save money, and > have the rest be traditional Ceph storage? If so consider putting the > SAN hosts all in one failure domain. > - Depending on the SAN you may consider aligning your failure domains > to different arrays, switches, or even array directors. > - Remember to take the hosts network speed into consideration when > calculating how many luns to put on each host. > > Hope that helps. > > -Brett > > On Thu, Aug 22, 2019, 4:14 AM Mohsen Mottaghi > <mohsenmotta...@outlook.com <mailto:mohsenmotta...@outlook.com>> wrote: > > Hi > > > Yesterday one of our customers asked us a strange request. He > asked us to use SAN as the Ceph storage space to add the SAN > storages it currently has to the cluster and reduce other disk > purchase costs. > > > Anybody know can we do this or not?! And if this is possible how > we should start to architect this Strange Ceph?! Is it good or not?! > > > > Thanks for your help. > > Mohsen Mottaghi > > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > <mailto:ceph-users@ceph.io> > To unsubscribe send an email to ceph-users-le...@ceph.io > <mailto:ceph-users-le...@ceph.io> > > > _______________________________________________ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io -- SUSE Software Solutions Germany GmbH, Maxfeldstr. 5, D 90409 Nürnberg GF:Geschäftsführer: Felix Imendörffer, (HRB 247165, AG München)
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