Night Owl ADV1-168500 user manual - Manual (Page 65)

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To access the Disk Management menu, select the Disk Management
button.

Status: Indicates whether the HD is working (recording) or not
working (no disk).

Capacity Total/Free: Shows the total HD space available and how
much free space is on the HD. The maximum HD capacity is 2
terabytes.

Format: Check this box to enable the HD to be formatted.

Format Button: Select this button to format the HD. Formatting the
HD will erase all data and allow the DVR to read and write files to
and from the HD.

Overwrite: Choose one of three options: By days, By capacity, or
Never). This will write over the oldest files first.

Max Reserved Days: This will only be shown if you choose the By
days option in the overwrite feature.
Chapter 17: Disk Management Menu