Source note · Unified CM virtualization and sizing
To change a Unified CM VM's vCPU, vRAM or vDisk, the Release 15 upgrade guide says to take a DRS backup, shut down the VM, then edit the settings in the vSphere Client, updating the reservation value to match the new release's specifications.
Checked 2026-09-25
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- VM lifecycle
- Deployment
- on-premises
- Region
- not restricted
- Release range
- 15 and SUs (VMware ESXi)
- Checked
- 2026-09-25
Sources
- Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs - Change the Virtualization Software — Cisco Systems · tier 2 current vendor documentation · Change Virtual Machine Configuration Specifications
Cite this note
APA
WarmTransfer. (2026, September 25). Unified CM virtualization and sizing: source note cucm-virtualization-sizing-resize-procedure-order. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-virtualization-sizing-resize-procedure-order
BibTeX
@misc{warmtransfer-claim-cucm-virtualization-sizing-resize-procedure-order,
title = {Unified CM virtualization and sizing: source note cucm-virtualization-sizing-resize-procedure-order},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-virtualization-sizing-resize-procedure-order},
note = {Source note cucm-virtualization-sizing-resize-procedure-order, checked 2026-09-25}
}