Vivotek NR9682-v2 64-Channel NVR (No HDD) - Manual (Page 178)

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178 - User's Manual
3-2. Configuring Redundant Servers - Failover
VAST2 servers can be configured into two groups: Active and Redundant. The Active group
performs daily recording and monitoring tasks, while the Redundant group acts as the standby
servers. In the event of server failures, the Redundant group becomes active, and takes over
the recording task.
The Redundant server group configuration consists of the following:
1. One VAST2 s erver designated as the CMS (Central Management server) VAST central
management server.
2. At least one VAST2 server in the Active group.
3. At least one VAST2 server in the Redundant group.
4. Gb/s network or higher-speed connection among the servers. All Active and Redundant
groups can reside in different subnets, provided that static IPs are configured for these
servers.
Active VAST servers Redundant VAST servers
CMS VAST
Active Group Redundant Group
Node 1
Node 2
Node 1
Node 2
Node 3
External storage /
NAS
Network Cameras
LAN
. . . . .
Server Group
IMPORTANT:
For a Redundant server configuration, you must first enlist VAST servers in the Sites
configuration page before configuring the Redundant server groups. See the Sites
configuration page.