Network Video Recorder User Manual   
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 Bad Sector Detection 
  You can also pause/resume or cancel the detection. 
  After testing completed, click Error information to see the detailed damage information. 
HDD Health Detection 
Purpose: 
You can view the health status of Seagate HDD that generated after October 1th, 2017 and 
provides capacity ranges from 4 TB to 8 TB. The function helps you to troubleshoot HDD problems. 
Compared with S.M.A.R.T function, health detection shows HDD status with more details. 
 Go to Maintenance > HDD Operation > Health Detection. 
 
 Health Detection