Quoting Tomasz Chmielewski <mangoo@xxxxxxxx>:
On 28.09.2010 15:01, John Madden wrote:Still, we need to have Cyrus database, mail storage accessible for both servers. I though using glusterfs for it would be a good idea (assuming Cyrus only runs on one of the servers at a given time).IMO, don't use glusterfs for this. I found it to not even be sufficient for a PHP session store; it'll certainly fall over with IMAP loads.Any other suggestions? There is an alternatives like Ceph[1], but it is just too new (and potentially can have some edge cases). DRBD + GFS/OCFS2 just seem too complex for such setup. Other than that, I use glusterfs in several setups, and I don't have any dramatic performance problems with it (still slower than bare metal of course) - will depend on workload and expected performance of course. [1] http://ceph.newdream.net/about/
Most Cluster-/Sharedfilesystems are good with few big files. But because of the metadatahandling these FS all lose performance if you have many small files, and cyrus has many files.
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