Dahua NVR4104HS-P-EI 4CH Compact 1U 4PoE 1HDD WizSense Network Video Recorder

Dahua Network Video Recorder User's Manual V2.3.4 - Page 449

For NVR4104HS-P-EI.

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No. Icon Description
7 None
Includes eight function tiles: LIVE, PLAYBACK, AI, ALARM, POS,
OPERATION, BACKUP, DISPLAY, and AUDIO. Click each tile to
open the conguration page of the tile.
LIVE: You can perform the operations such as viewing real-time
video, conguring channel layout, setting PTZ controls, and
using smart talk and instant record functions if needed.
PLAYBACK: Search for and play back the recorded video saved
on the Device.
ALARM: Search for alarm information and congure alarm
event actions.
AI: Congure and manage articial intelligent events. It
includes smart search, parameters, and database.
POS: View POS information and congure related settings.
OPERATION: View system information, import/export system
conguration les, or update system.
BACKUP: Search and back up the video les to the local PC or
external storage device such as USB storage device.
DISPLAY: Congure the display eect such as displaying
content, image transparency, and resolution, and enable the
zero-channel function.
AUDIO: Manage audio les and congure the playing schedule.
The audio le can be played in response to an alarm event if the
voice prompts function is enabled.
6.4 Cluster Service
The cluster function, also known as cluster redundancy, is a kind of deployment method that can
improve the reliability of the device. In the cluster system, there is a number of main devices and
another number of sub devices (the N+M mode), and they have a virtual IP address (the cluster IP).
When the main device fails, the corresponding sub device will take over the job automatically.
When the main device recovers, the sub device will transmit the conguration data, cluster IP
address and videos recorded during the failure to the main device which then takes over the job
again.
In the N+M cluster system, there is a management server, the DCS (Dispatching Console) server,
which is responsible for timely and correct scheduling management of the main and sub devices.
When you create a cluster, the current device is used as the rst sub device and the DCS server by
default.
This function is available on select models.
6.4.1 Conguring Cluster IP
Background Information
When the main device malfunctions, the sub device can use the main device conguration and
virtual IP address to replace the work (monitor or record) accordingly. When you use the virtual IP
to access the device, you can still view the real-time video and there is no risk of record loss.
User's Manual
435
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