7 Dec
2019
7 Dec
'19
1:13 a.m.
Hi,
I think option-2 below seems better or am I missing something with director concept.
- 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).
- 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.
-- Sincerely, Soumitri Mishra