director option

[soumitri at iitk.ac.in]

Another query: Can proxy_maybe be used with director setup.

-- 
Soumitri

On 12/7/19 4:43 AM, soumitri--- via dovecot wrote:
> Hi,
>
> I think option-2 below seems better or am I missing something with 
> director concept.
>
> 1. As director and back-end in same server (broken) not recommended, I 
> need minimum 4 servers (2 for director, 2 back-end IMAP). Indexes and 
> mail must be in NFS shared storage(not optimal), as a user may land on 
> any of the back-end servers (assuming no static mapping of user from 
> pass DB).
>
> 2) Proxy_may in passDB (static mapping of users to servers makes 
> balancing little partial but can be admin optimized) can achieve the 
> above setup with 2 servers without director. Here indexes can be on 
> their local disk (efficient)  and mail on shared storage (NFS).
>
> Both case I can use RR DNS to get users IMAP traffic to front end. Any 
> guidance on this is appreciated.
>