Redmine

Hi everyone,

I'm an apprenticeship student in a IT society who wants to work with Redmine. I need to send them the hardware requirements for 30 simultaneous connexions. They ask me to size database PostgreSQL (disk, CPU, RAM), server (disk, CPU, RAM) on Windows server 2012 R2, and a sizing for the bandwidth.

Redmine has to read and write in another MS SQL database.

Unfortunately I have no knowledge on how to calculate hardware requirements...

I ask your help because I didnt find all answers:

Database (PostgreSQL)
Disk: 2GB
CPU: ???
RAM: 3Gb

Server application
Disk: 100Go for shared documents
CPU: dual-core 2.6Ghz
RAM: 4Gb

Bandwidth: ???

Am I right on what I found ?
If someone has the approximately tge same use, it would be really helpful for my project. Thanks a lot in advance.

Best regards.