Encode server, Media store, Live sources – Grass Valley iTX System v.2.6 User Manual
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System resilience
3.
The command prompt will then confirm the name of the chosen channel and ask the
question ‘Activate config for (channel name) on back up machine (Y/N)? check the
name is correct and hit ‘Y’ if you wish to continue.
4.
The batch file will then copy the xml configuration file into the TX Play folder on the
standby server where the default configuration file is kept, overwriting it. It then
restarts the Output Server services, forcing the channel to load the new configuration.
5.
You then use the channel status indicator to observe the back-up server coming on
line. When all the service lights are green and you are able to check the output server
has loaded the correct schedule and begun to play out, you manually route the
standby channel into your transmission circuit, using the routing controls on your Back
Up Channel Assignment layout.
For more information on routing in an iTX system, see "Using iTX with a matrix router", page
Encode Server
For the Encode Server, you may run a back-up machine in parallel with the main one.
To cover for the potential failure of an Encode Server, you may use either of these methods:
•
Use a tee connection to connect a feed to both the main Encode Server and the back-
up Encode Server. This is the preferred method.
•
Connect the main Encode Server and the back-up Encode Server to the same feed via
two separate connections.
With either method, two files are created in the Media Store – one by each Encode Server; iTX
considers both files to be the same. If the main file fails during playout, iTX continues playout
with the back-up file.
Media Store
The most common option is to use a mirrored RAID storage system to hold media files.
As another option, it is possible for a second complete iTX system to run in parallel with the
main system. In this case, you may use the Media Watcher in one system to copy the contents
of the main Media Store onto a back-up Media Store in the back-up system.
, page
Live Sources
The live source (usually from a satellite) is duplicated to produce two independent signals. One
of the signals provides the main live source; the other, the back-up. The signals are connected
to separate router sources. When a schedule event features the live source, iTX routes the
main and back-up live sources to the main and back-up Output Servers.
iTX uses live aliases – alternative names for the router crosspoints – to identify the live sources.
To allow it to treat the two separate signals as the same live source, the live aliases must be
identical for both sources.
March 2015
System Administrator Guide
Page 304 of 404