Hi,
We are currently exploring full envelope journaling service using Exchange 2013 with Sharepoint 2013 eDiscovery suite for ALL internal and external messages for a largish enterprise ~40K mailboxes and need to accurately plan storage for the dedicated Journal
servers; we have used the standard messagestats powershell script to get send / receive and average message size and have some valid metrics to utilize however there is next to no actual guidance on how to plan storage for journaling published?
My question concerns which metric to use - unique send and receive OR total send / receive figures; I have reached out to some of my default Microsoft contacts and dug into how FE Journaling works under the hood and my understanding is that it is total send / receive for every message would be more valid to plan against?
Any guidance would be great!