GeoVision GV-Tower System V2 User Manual page 42

GV-Tower NVR/VMS System V2 (Rev. C) hard disk corrupts.
If you are experiencing file system corruption problems, such as lost clusters, cross-linked
files or invalid files or directories, try these steps:
1. Use the HD Tune utility to scan the hard disk for errors. Follow these steps:
A. Download and install HD Tune from
B. Click the Error Scan tab and click Start to scan. Any found defects will be shown as
red blocks as below.
C. If your hard disk drive is damaged, replace a new one.
http://www.hdtune.com/
Figure 4-2
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