Using the Main Menu15
How hard drive mirroring works:
1. Security system.
2. Primary hard drive.
3. Mirror hard drive.
Note
• The mirror hard drive must be as large or larger than primary hard drive to backup all recordings.
• HDD mirroring begins from when mirror hard drive is installed and configured.
• Two hard drives must be installed in the system to use HDD mirroring. For details on installing hard
drives, see 24 DNR500 Series Hard Drive Installation, page 176.
To set up hard drive mirroring:
1. From the Main Menu, click
and then click Storage>HDD Manager.
2. Click the Type drop-down under the second hard drive and select Mirror HDD.
CAUTION
Setting a hard drive for mirroring erases all data on the hard drive. This step cannot be undone.
3. Click OK to apply changes. Click Yes to confirm. The system will format the hard drive
and restart.
4. When the system restarts, click
and then click Storage>Schedule>Record.
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