> -----Original Message----- > From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf Of > Rafael Coninck Teigão > Sent: 23 April 2015 22:35 > To: Nick Fisk; ceph-users@xxxxxxxxxxxxxx > Subject: Re: Serving multiple applications with a single cluster > > Hi Nick, > > Thanks for answering. > > Each application runs on its own cluster (these are Glassfish clusters, and are > distributed as nodes appA01, appA02,..., appB01, appB02, etc) and each node > on the cluster has to have access to the same files. > Currently we are using NFS for this, but it has its limitations (max size, HA). Yes this would be the main advantage of using CephFS, but as you have stated it might not give you the security functionality. > > I guess if I could just mount the same pool on each cluster node, it would > work (say poolA on appA01 and appA02, poolB on appB01 and appB02), but > this is not possible with RBD, right? RBD is not the problem, you can map it as many times as you want, but the filesystem needs to support it. The only possible option would be Pacemaker+NFS but I see above you see this as not meeting your requirements. I'm not sure what else to suggest. > > The main reason for separating the areas is security, so that the superuser of > one application cluster can't access the files of the other two. > > Thanks, > Rafael. > > On 23/04/2015 17:05, Nick Fisk wrote: > > Hi Rafael, > > > > Do you require a shared FS for these applications or would a block > > device with a traditional filesystem be suitable? > > > > If it is, then you could create separate pools with a RBD block device > > in each. > > > > Just out of interest what is the reason for separation, security or > > performance? > > > > Nick > > > >> -----Original Message----- > >> From: ceph-users [mailto:ceph-users-bounces@xxxxxxxxxxxxxx] On Behalf > >> Of Rafael Coninck Teigão > >> Sent: 23 April 2015 19:39 > >> To: ceph-users@xxxxxxxxxxxxxx > >> Subject: Serving multiple applications with a single > >> cluster > >> > >> Hello everyone. > >> > >> I'm new to the list and also just a beginner at using Ceph, and I'd > >> like > > to get > >> some advice from you on how to create the right infrastructure for > >> our scenario. > >> > >> We'd like to provide storage to three different applications, but > >> each > > should > >> have its own "area". Also, ideally we'd like to avoid using RGW, so > >> that > > we > >> can deploy the new storage without changing the applications too much. > >> > >> Is it possible to accomplish this with a single cluster? I know I > >> won't be > > able to > >> have multiple CephFS with decent isolation > >> (https://wiki.ceph.com/Planning/Sideboard/Client_Security_for_CephFS) > >> and that running multiple clusters on the same hardware involves > >> changing all the TCP ports for each instance. > >> > >> I guess the perfect solution for us would be able to create different > > pools > >> and serve them in different CephFS configurations, but that's not > >> possible > > as > >> of now right? > >> > >> How would you go in configuring Ceph for this scenario? > >> > >> Thanks, > >> Rafael. > >> _______________________________________________ > >> ceph-users mailing list > >> ceph-users@xxxxxxxxxxxxxx > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > > > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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