Milestone XProtect Advanced VMS 2014 User Manual Page 16

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Milestone XProtect
®
Advanced
VMS 2014
Administrator's Manual
www.milestonesys.com
16
System overview
you can run several management servers as a Milestone Federated Architecture™. The management
server runs as a service, and is typically installed on a dedicated server.
Users connect to the management server for initial authentication, then transparently to the recording
servers for access to for video recordings, etc.
Failover management server
Failover support on the management server is achieved by installing the management server in a
Microsoft Windows Cluster. The cluster will then ensure that another server take over the
management server function should the first server fail.
Recording server
The recording server is responsible for communicating with the network cameras and video encoders,
recording the retrieved audio and video as well as providing client access to both live and recorded
audio and video.
Furthermore, the recording server is responsible for communicating with other Milestone products
connected via the Milestone Interconnect technology.
Device Drivers
Communication with the network cameras and video encoders are done through a device
driver developed specifically for individual devices or a series of similar devices from the same
manufacture.
The device drivers are by default installed when the recording server is installed, but can later
be updated by downloading and installing a newer version of the device pack.
Media Database
The retrieved audio and video data is stored in the tailor-made high performance Milestone
media database optimized for recording and storing audio and video data.
The media database supports various unique features like; multistage archiving, video
grooming, encryption and adding a digital signature to the recordings.
Failover recording server
The failover recording server is responsible for taking over the recording task should a recording
server fail.
The failover recording server can operator in two modes:
Standard failover for monitoring multiple recording servers
Hot-standby for monitoring a single recording server
The difference between the standard and hot-standby failover modes is that in the standard failover
mode the failover recording server does not know which server to take over from, so it cannot start
until a recording server fails. In the hot-standby mode the failover time is significantly shorter, as the
failover recording server already knows which recording server it should take over from and thus can
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