Cucm: Hardware Requirements Upd
Disk is often the bottleneck. The OVA reserves specific virtual disk sizes (e.g., 110 GB for boot/logs, plus separate data disks). Don’t reduce them to save space—CUCM will eventually fail to write logs or updates.
Here’s what you actually need to know. cucm hardware requirements
While CPU and RAM dictate performance, storage requirements dictate the stability of the system. CUCM requires specific disk configurations. Historically, hardware RAID controllers were mandatory to create RAID 1 (mirroring) or RAID 5/10 arrays to protect against disk failure. In a virtualized environment, the requirement shifts to the underlying storage array. Disk is often the bottleneck