Ok, thanks for your time Reindl Harald, I'll consider your ideas!
On Mon, Oct 21, 2013 at 2:29 PM, Reindl Harald <[email protected]>wrote: > fine - so i make my answer more precise: > > if it comes to that you should re-think your achitecture instead > seek for workarounds which will hide the problem for some time > and sonner or later make a re-design of the architecture much > harder than starting to do so earlier > > but your choice..... > > Am 21.10.2013 22:25, schrieb Reymer Antonio Vargas Solano: > > I know how HA n LB works, is just that is not what I'm looking for for > example if you have and imap server that > > stores the mailboxes in a LUNs of a SAN, that only store the emails > received for the postfix servers, transfered by > > LMTP way, how you can configure another IMAP server that use POP and > IMAP protocols without access the SAN just > > communicating with the other Dovecot server... > > > > On Mon, Oct 21, 2013 at 2:20 PM, Reindl Harald > > <[email protected]<mailto: > [email protected]>> wrote: > > > > no i am not kidding you > > > > what i linked is how in professional environments typically things > > are done - virtually nobody would talk from one IMAP server to > > another one to deliver mails to the client > > > > with clustedred and replicated filesystems you have all servers > > accesing the same mail storage and your DNS-record has all of > > the servers listed > > > > http://en.wikipedia.org/wiki/Round-robin_DNS > > > > so before you assume someone is kidding you google how load balancing > > is done in large environments, read the links others provide and if > > you are not on a that large environment one server would be enough > > > > Am 21.10.2013 22:10, schrieb Reymer Antonio Vargas Solano: > > > Are you kidding me? Is not how or where to store the mailboxes... > is how to connect an imap server to another > > IMAP > > > server that have mailboxes! > > > > > > On Mon, Oct 21, 2013 at 1:30 PM, Reindl Harald < > [email protected] <mailto:[email protected]> > > <mailto:[email protected] <mailto:[email protected]>>> > wrote: > > > > > > > > > > > > Am 21.10.2013 21:23, schrieb Reymer Antonio Vargas Solano: > > > > At my university we are trying to implement a distributed > email backend, > > > > but I have some troubles, > > > > > > > > The topology: > > > > > > > > Server A: Postfix+LMTP # MTA > > > > Server B: Dovecot+LMTP # Just mailboxes > > > > Server C: Dovecot # POP3/IMAP > > > > > > > > Right now the Server A can leave a received email to the > Server B, but I > > > > don't know how to communicate Server C to the Server B to > retrieve the > > > > emails. > > > > > > > > I think that we should use IMAP protocol, but I am confused > about how to > > > > connect them, I don't know if we have to use a proxy IMAP > server, or > > > > another thing. > > > > > > > > Can anyone give me an idea? > > > > > > http://en.wikipedia.org/wiki/Storage_area_network > > > http://en.wikipedia.org/wiki/Clustered_file_system > >
