[cisco-voip] 11 server cluster and services

[PG]

I am currently installing a cluster with 11 nodes (8 subscriber, 2TFTP 
and 1 Pub)

Now, i haven't activated any services, but in CM Unifed CM i see all 
servers configured. I thought the CMs are only (auto-)configured as soon 
as i start CCM-service?

Also, i have now 11 MOH-servers, 11 CFB and 11 MTP-server although i 
haven't activated any Media Service on the nodes?

Can i delete the CMs, MOH, CFB, and MTP servers that i dont want to use 
or should the be kept in the datebase?

Any problems with TAC-support when 11 CMs are configured, but only 8 are 
used?

Thanks in advance.

PG