This message was generated by the smartd daemon running on:

host name: vdr-box
DNS domain: home

The following warning/error was logged by the smartd daemon:

Device: /dev/sdb [SAT], 2 Offline uncorrectable sectors

Device info:
WDC WD20EARX-00PASB0, S/N:WD-WCAZAC550662, WWN:5-0014ee-2b115b55f, FW:51.0AB51, 2.00 TB

For details see host's SYSLOG.

You can also use the smartctl utility for further investigation.
The original message about this issue was sent at Sun Jan 22 22:15:10 2017 CET
Another message will be sent in 24 hours if the problem persists.