Canon vb-s31D 手册

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The data that is saved during a backup consists of 

recording data, event data, and configuration files. The 

data is backed up from the Storage Server and saved to 

the folders described below, on the drives that are 

specified in the drive settings (p. 52).

„ Recording Data

<Destination drive>:\Canon-NVR\videofiles

The following recording data file is backed up:

Video being recorded is saved to a temporary file on the 

hard disk. By default, a recording file is created and 

saved on the destination drive when the temporary file 

size reaches 1 GB or when 24 hours have elapsed since 

the start of recording. This size can be changed using the 

[Maximum File Size/Duration] option on the [Recording 

Settings] tab in the [Storage Server Group Settings] dialog 

box (p. 47).

• Greenwich Mean Time is used for the time added to the file 

name of the recording data.

• This software uses lossy compression for the recording data. 

You do not need to compress the recording files further using a 
tape drive or other devices.

The following is a temporary file, before it is made into a 

recording data file by the system. This file cannot be 

backed up using the standard backup method.

„ Event Data

<Destination drive>:\Canon-NVR\eventfiles

The following event data file is backed up:

Greenwich Mean Time is used for the time added to the file name 

of the recording data.

„ Configuration Files

The settings for the Storage Server and the Viewer are 

saved in the following folders on the computer where the 

program is installed. You must back up all of these folders 

to completely back up the configuration files.

Configuration file path
<System drive>:\ProgramData\Canon\WebView\NVR30\

<System drive>:\Users\<user name>\AppData\Local\

Canon\WebView\NVR30\

• The configuration file names are not displayed unless [Show 

hidden files and folders] is selected in the [View] tab of 

Windows Explorer [Folder Options].

• You cannot use the shadow backup feature.

• You do not need to stop recording to back up recorded data 

that is complete. However, the frame rate may change 

because of increased disk I/O load and/or CPU load.

• If you want to restore a backed-up recording file, the computer 

you restore the backup to must have the same IP address and 
drive configuration as the original Storage Server. For 

example, if the original Storage Server includes a system drive 

and a recorded data drive, the Storage Server you restore the 
backup to must also have a system drive and a recorded data 

drive. Determine the hard disk capacity based on the volume 

of data to be restored.

NVR3_MEDIA_ xxxxxxxx _ yyyymmdd _ hhmmss .edt

Camera ID

Year, month 

and day when 

recording 

started

Time

NVR3_UNINDEXED_MEDIA_xxxxxxxx_ yyyymmdd _hhmmss.edt

Camera ID Year, month and 

day when 

recording started

Time

NVR3_EVENT_ xxxxxxxx _

yyyymmdd

_hhmmss .evt

Camera ID Year, month 

and day when 
recording 
started

Time