Step1：Log in the Web interface of IPC，select Setting>Storage>Record Control
Step2：Set parameters according to actual needs
Pack Duration ：Packing time of each video file.
Pre-event Record：When an alarm occurs, advance the recording time. For example, when enter 5, the system stores the recording 5 seconds before the alarm occurs in the recording file.
When the alarm or the motion detection linkage is triggered, but the recording is not enabled, then the system will store the video data within the pre-recording time.
Stop：Stop recording when working disk is full.
Overwrite：When the working disk is full, the earliest video file will be covered cyclically。
Record Mode: Select the “manual” mode, the system starts recording. Select the “Auto” mode, the system will record according to the schedule. Select “Close”, the system will not record.
Record Stream: Select the record stream, including the main stream and the sub stream.