Need guidance for migrating data's fom piler version 1.3.0 to 1.4.1.

[B.JEGADEESAN]

Hi,

In our production environment we had piler version 1.3.0 rhel 7.9 OS with (httpd-2.4.6, php-5.4.16 and sphinx-2.3.2) and now we are installed and configured latest piler version 1.4.1 in rhel 8.7 OS with (nginx-1.14.1, mysql-10.6, php-8.0.28 and sphinx-2.2.11) successfully. Our existing piler data should be more than 10TB, We are planned to migrating the data's from existing environment to our new environment. So we need your guidance and what are the prevention steps we can follow while migrating the whole data without any data lose.

[Janos SUTO]

Check out https://www.mailpiler.org/wiki/current:migration-to-new-host