Source note · Unified CM backup and upgrade
A fresh Disaster Recovery System backup should be taken before upgrading, because an outdated backup can cause data loss or make the system impossible to restore.
Checked 2026-09-24
You may lose data or you may be unable to restore your system if your backup is outdated.
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- Disaster Recovery System
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 guide
- Checked
- 2026-09-24
Sources
- Upgrade and Migration Guide for Cisco Unified Communications Manager and the IM and Presence Service, Release 15 and SUs - Pre-Upgrade Tasks (Manual Process) — Cisco Systems · tier 2 current vendor documentation · Pre-Upgrade Tasks chapter, back up the system task
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM backup and upgrade: source note cucm-backup-upgrade-fresh-drs-backup. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-backup-upgrade-fresh-drs-backup
BibTeX
@misc{warmtransfer-claim-cucm-backup-upgrade-fresh-drs-backup,
title = {Unified CM backup and upgrade: source note cucm-backup-upgrade-fresh-drs-backup},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-backup-upgrade-fresh-drs-backup},
note = {Source note cucm-backup-upgrade-fresh-drs-backup, checked 2026-09-24}
}