Under one COS, you can dedicate more than one mailbox servers. Whenever an account is created, Zimbra will decide which mailbox to put the new account in.
I want to know because currently I want to add one more hi-end mailbox server, in addition to our current low-end mailbox server.
Purely based on no of accounts? or storage left? or zimbra also consider the CPU and RAM of the server?
How about you guys? Do you create COS dedicated for one mailbox server (standardA for serverA , standardB for serverB)? or you just let zimbra decided for you?