On 6/29/2011 11:12 PM, Timo Sirainen wrote:
On Wed, 2011-06-29 at 18:40 -0500, Stan Hoeppner wrote:
Since maildir is IOPS heavy and NFS/GFS/OCFS don't seem to like high IOPS workloads that make heavy use of locking, mbox becomes very attractive due to it's very low IOPS demands. If you can live with the folder tree limitations of mbox, along with a higher probably of mailbox file corruption, mbox is likely the best format for NFS/GFS/OCFS.
You shouldn't equate NFS with GFS/OCFS. They have very little in common. The above is more or less true for GFS/OCFS, but definitely not NFS.
I was under the impression that some NFS server implementations don't have stellar maildir performance with Dovecot clusters due to the NFS caching problem, and locking, which is why I made the distinction between something like a NetApp and a DIY NFS server. Is this not true? Or is this NFS version dependent? Or is my recollection simply faulty?
-- Stan