Full Product Manual
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8.5 Storage
OVERWRITE - By default, HDD Overwrite is set to ON. When on, the   icon appears on the screen.
KEEP DATA LIMITS (DAYS) - Select how many days to save the recording data, from 1 to 31 days. 
Once the assigned amount of days is reached, the recorded data is removed. Select OFF to disable this 
function.
 HDD details - Check the details of the selected hard disk drive.
 HDD Format - Click to format the selected hard disk drive and erase all data. When adding a new 
hard disk drive to the DVR, it MUST be formatted to work properly.
 Mount /   Unmount HDD - HDD hot-swapping is supported for this device. There’s no need to 
power off the device first to install or remove a hard disk drive. However, Night Owl recommends 
turning the power off as a safety precaution before removing or swapping a HDD.
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