Source note · Unified CM backup and upgrade
No OS Administration tasks should be performed while a backup is running, because DRS locks the platform API and blocks OS Administration requests.
Checked 2026-09-24
Do not perform any OS Administration tasks while a backup is running
- Vendor
- Cisco
- Product
- Unified Communications Manager
- Subsystem
- Disaster Recovery System
- Deployment
- on-premises
- Region
- not restricted
- Release range
- Release 15 and SUs
- Checked
- 2026-09-24
Sources
- Administration Guide for Cisco Unified Communications Manager, Release 15 and SUs - Back Up the System — Cisco Systems · tier 2 current vendor documentation · Backup restrictions / prerequisites
Cite this note
APA
WarmTransfer. (2026, September 24). Unified CM backup and upgrade: source note cucm-backup-upgrade-drs-no-os-admin. WarmTransfer. https://warmtransfer.net/knowledge/claims/cucm-backup-upgrade-drs-no-os-admin
BibTeX
@misc{warmtransfer-claim-cucm-backup-upgrade-drs-no-os-admin,
title = {Unified CM backup and upgrade: source note cucm-backup-upgrade-drs-no-os-admin},
author = {{WarmTransfer}},
year = {2026},
url = {https://warmtransfer.net/knowledge/claims/cucm-backup-upgrade-drs-no-os-admin},
note = {Source note cucm-backup-upgrade-drs-no-os-admin, checked 2026-09-24}
}