On 20/08/2010 at 12:35 AM we took backup from NMX main server for 12 channels
At 12:40 AM removed server redundancy between both servers
At 12:50 AM restored 14 channels database in standby NMX server
We checked all parameters & changed channel name, video PID, Audio PID and PMT PID
Then started Domain Manager in standby server
Observed glitches, white frames and blanks randomly about 2 min at 1:03 AM (we suspecting problem in 14 channel database)
We stopped Domain Manager of standby server and restored to previous database.
Then we created 13th and 14th channels manually & made necessary connections in main NMX server Digital Service Manager etc.,(Statmux rate adjusted to 30.90 from 30.99 mbps to increase null rate for CAS).
We rebuilt service configuration in Digital Service Manager. At this we observed 15 sec blank which is compulsory.
Then 13th & 14th channels are added to statmux pool. At this time we observed glitches, blanks and white frames about 2 min while configuring bitrates in statmux.
Then 14th channel was disabled.
Verified all PID's and necessary tests are done.
Then redundancy added for both servers and tested successfully.
After this,new services was added and configured in PISYS (13th channel) and tested successfully with regular commands.
At 3:45 am transmission chain changed to Standby path(MUX,SAS,MOD)
At 4:00 am we disabled 13th channel in NMX server and verified all PID's at the downlink.
At 4:15 am transmission chain changed to main path(SAS,MUX,MOD).
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