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The Backup Administrator migrates a vProxy VM to a new vCenter server. The NetWorker server /nsr/logs/daemon.raw shows repeated error messages every few seconds: MM/DD/YYYY HH:MM:SS [NETWORKER_SERVER_NAME] nsrd NSR error vProxy '[VPROXY_NAME]' VM not found for instance UUID '50154b1e-4727-a71a-20a6-90b793ffe33d'. The VM backups running on the reported vProxy still complete successfully. The error does not prevent backup operations but generates continuous log noise.
VMware vCenter assigns a UUID to every VM at creation. The vProxy was deployed on the original vCenter and registered with NetWorker using that UUID. When the vProxy migrates to a new vCenter, the new vCenter assigns a different UUID. The registered UUID in NetWorker no longer matches the vProxy VM. The vProxy certificate is tied to the original UUID, and a mismatch causes NetWorker to report the VM is not found.
The vProxy must be re-registered against the new vCenter server to generate a new certificate. The steps to re-register are documented in the "Unregistering and re-registering a vProxy after removal" section of the Dell NetWorker VMware Integration guide and in article: NVP vProxy: How To Unregister/Re-Register a vProxy Appliance?
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