Using the Main Menu
NOTE: The DVR supports a single external hard drive up to a maximum size of 2TB. The external hard drive must be
NOTE: Footage on the external hard drivecanonlybeaccessedusing the DVR or a Windows PC. The footage cannot be accessed on a Mac.
HDD Extension allows you to expand the total storage capacity of your DVR, so you can record longer durations of video. When HDD extension is enabled, the DVR will first record until the internal hard drive is full before it begins to record to the external hard drive. Once the internal and external hard drives are full, it will begin to overwrite the oldest available recordings on the internal hard drive (first in, first out).
HDD Mirroring is useful if you want to create an automatic backup of your video footage on your external hard drive. This allows you to secure your external hard drive in a locked box or cabinet. This way, if an intruder removes or damages the DVR, you will have a secure backup of the saved footage.
The external hard drive you use for mirroring must be the same size or larger than the internal hard drive to maintain a complete backup of your internal hard drive.
NOTE: HDD Mirroring does not backup data from before HDD mirroring is enabled. The DVR begins parallel recording to both hard drives when HDD mirroring is enabled.
If the external hard drive is larger than the internal hard drive, the DVR will do the following:
1Record in parallel to both hard drives until the internal hard drive is full.
2Begin to overwrite the oldest recordings (first in first out) on the internal hard drive, while continuing to record on the additional capacity of the external hard drive.
3When the external hard drive is full, overwrite the oldest recordings on the external hard drive.
This allows you to keep a backup of your most recent footage as well as a single copy of your oldest available footage on the external hard drive.
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