Rebooting Disk Agent host with “PsMon driver” boots host into maintenance mode
When you reboot a Windows Server 2016 or a Windows Server 2019 system having the Unified Extensible Firmware Interface (UEFI) and Secure boot enabled, the system goes into maintenance mode.
Data Protector Cell Manager or Disk Agent on Windows Server 2016 or Windows Server 2019 having UEFI and Secure boot enabled.
Data Protector Versions 10.90 (2020.11) and 10.91 (2021.02).
This is because of an expired EV certificate used for signing the Windows drivers.
To resolve the issue, complete the following steps on Cell Manager / Disk Agent Host: