we have upgrade CUCM from 4.x to6.x version. the hardware is a MCS 7945 HP with four Disk.
In windows platform, we have access to all Partition Disk of raid controller.
We want to know if in CUCM 6.x the all disk is used (other word if the second controller serves in CUCM 6.x). If so it's possible to have access on theses Disk or if we can remove thes Disk from MCS server for backup purpose?