Please Help me

[Marc Roos]

If you plan on using distributed storage, enable this on the old 
environment so you can move messages to the distributed storage (I have 
archive mailboxes there). This way you are only spending time copying 
recent email.





-----Original Message-----
From: Kishore Potnuru [mailto:kishore.reachme at gmail.com] 
Sent: zondag 12 juli 2020 22:18
To: Dovecot Mailing List
Subject: Please Help me

Hi All,

I need to migrate the complete data & setup/environment from an old 
dovecot environment to a new dovecot environment. 

Old environment details:
========================

Linux OS        -  Red Hat Enterprise Linux Server release 6.5 
(Santiago)
Dovecot version -  2.0.9
Postfix version -  2.6.6

New Environment details: ( 2 systems)
========================

Linux OS        -  Red Hat Enterprise Linux Server release 7.7 (Maipo)
Dovecot version -  2.2.36 (1f10bfa63)
Postfix version -  2.10.1

In the new environment, I have 2 servers. I have got 2 of the above 
servers with above configuration and need to create HA/Resilience. I 
know there is advanced versions in Redhat and Dovecot. As per my 
organisation's existing support/policy, that is what maximum supported 
RHEL and official version of dovecot as per RHEL 7.7.

Now my questions are:

1. I will stop the dovecot/postfix services on the server in old 
environment. Is it possible to move/copy the complete configuration 
along with data  (directories/sub-directories/users/groups/existing 
email in new or cur folders/complete email domains along with complete 
structure) to the other 2 servers in new env? Could you please suggest 
me the commands or steps follow that?

2. Now, With the above 2 servers, I would like to create the 
HA/Resilience. I know there is a Replication options which are there. 
Could you please provide me the steps/video, how it needs to be done?

I have got the systems and I need to move/copy the environment to a new 
environment and create the HA/Resilience. I am not sure, how to proceed 
and what needs to be done clearly? I am stuck here. 

Please help me in this step by step procedure.

Thanks,
Kishore Potnuru