On 14.2.2010, at 3.31, Stan Hoeppner wrote: >> With NFS if you want to avoid random errors, you still need to do the load >> balancing in a way that user's mails are never accessed simultaneously from >> two servers at the same time. See recent "quick question" thread about this. >> Cluster filesystems should be able to handle this better, although for >> performance it's probably still a good idea to do this. > > I can't see how the metadata sharing of say GFS2 is going to create any > serious > performance impact on a cluster of dovecot servers using GFS2 and a shared SAN > array especially if using maildir. If the load balancing is implemented > correctly and a given user is only hitting one dovecot server at any one point > in time, there should be few, if any, shared file locks. Thus, no negative > impact due to shared locking.
I think that's what I said above, or at least tried to.. Well, looks like i missed a "not" there: "good idea not to do this".
