System Design Concept
28

When using multiple Storage Servers

If multiple Storage Servers are being used, you should decide which one is the Master
Storage Server. A typical multiple Storage Server arrangement could be.
Viewer
Master Storage Server
Storage Server #2
Storage Server #3
Play Video to Viewer
Play Video to Viewer
Play Video to Viewer
Load Camera Server information
Load Zones and Locations
Load Viewer Layouts
Save Camera Server information
Save Zones and Locations
Save Viewer Layouts

When using Viewer alone

The Viewer can be used by itself without connecting to the Storage Server. Although there
are some restrictions on functions such as recording and Event Search, Viewer-Only mode
allows to view live videos (➝P. 151).

About the Master Storage Server

A Master Storage Server is the Storage Server which a Viewer will connect to in the first
place. Information about Camera Servers, Locations and Zones and Viewer Layouts are
stored on the Master Storage Server. The Viewer extracts the information from the Master
Storage Server.
It is recommended that all Viewers within a system use the
same Storage Server as a Master Storage Server. This ensures
that all Viewers use the same Zones, Locations and Viewer
Layouts.
For correct operation, the time setting of all PCs within a
system (including Storage Servers and Viewers) must be
correct. We recommend that you use NTP function to set the
time for Storage Server automatically.
Adjusting the time of Storage Server during recording may
cause problems to the recording video.
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When multiple Storage Servers are operated, if the Storage
Servers other than the Master Storage Server are stopped, it
takes time to display the Configuration and Preferences screen
(approximately up to 30 seconds).
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