Backup operation fails with error 84
Backup operation failed with error 84 media write error.
Workaround:
Run a backup using valid media server.
Stop one of the media server storage.
Run full backup again.
Ransomware attackers specifically target and attempt to destroy backup systems to increase the probability of payment. Hardening your system is critical. Please ensure you have reviewed your platform security using the Security Hardening Checklist