On 05/20/15 23:34, Trevor Robinson - Key4ce wrote: > > Hello, > > > > Could somebody please advise me if Ceph is suitable for our use? > > > > We are looking for a file system which is able to work over different > locations which are connected by VPN. If one locations was to go > offline then the filesystem will stay online at both sites and then > once connection is regained the latest file version will take priority. >
CephFS won't work well (or at all when the connections are lost). The only part of Ceph which would work is RGW replication but you don't get a filesystem with it and I'm under the impression that a multi-master replication might be tricky (to be confirmer). Coda's goals seems to match your needs. I'm not sure if it's still actively developped (there is a client distributed with the Linux kernel though). http://www.coda.cs.cmu.edu/ Last time I tried it (several years ago) it worked well enough for me. > > > The main use will be for website files so the changes are most likely > to be any uploaded files and cache files as a lot of the data will be > stored in a SQL database which is already replicated. > If your setup is not too complex, you might simply handle this with rsync or unison. Best regards, Lionel
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