GRASS VALLEY Encore, Руководство по настройке

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Encore — Configuration Manual 33
Overview
Redundancy
To ensure reliable Encore system operation, various forms of redundancy
are available. For example, System Controller frames can be equipped with
redundant power supplies. The power supply with the greatest load is
automatically used by the frame. Providing power from separate circuits to
each power supply helps ensure power to the frame will not be interrupted.
System Controller frame cans also be equipped with two System Controller
Boards (SCBs). Applications running on different SCBs can be configured
in Master/Slave pairs, such that if one SCB fails the applications on the
other SCB automatically take control without any interruption of system
operation. In Encore 1.7.3 and newer software, redundancy mode informa-
tion is stored in the memory of the frame and validated. This ties redun-
dancy mode settings to the frame slot, not the SCB. Applications can be
Master/Slave paired on SCBs in the same frame, or SCBs in different
frames can be used to provide even more robust redundancy. When SCB
redundancy is being used, the databases on both SCBs must remain syn-
chronized for proper operation should a change-over occur (
Figure 17 ).
Figure 17. Encore Redundancy
Database Backups
The Encore system’s comprehensive database is an extremely important set
of information, since it supplies data to all the other system components.
This database can be backed up by copying the OMN directory and its col-
Mi rr o r Ma s te r
Pa n el Se r ve r
Mi rr o r Ma s te r
Ro u te r Co n t r olle r
P r ima r y SCB (left s lot)
Mi rr o r Slave
Pa n el Se r ve r
Powe r S u pply #1
Powe r S u pply #2
Mi rr o r Slave
Ro u te r Co n t r olle r
Back u p SCB ( r ight s lot)
Enco r e Sys t em Con tr olle r F r ame
Rou t e r Ma tr ix F r ame
Mat r ix
Co n t r olle r #1
Mat r ix
Co n t r olle r #2
Powe r S u pply #1
Powe r S u pply #2
8531_05
r
0
Enginee r ing Wo r ks t a t ion PC
E n co r e Sy s tem databa s e
Sha r e r
Each powe r su pply ca n
i n depe n de n tly powe r
that e n ti r e f r ame.
Whe n device s come
o n -li n e thei r applicatio ns
r eceive co n fig ur atio n
i n fo r matio n f r om
the Sha r e r .
Mi rr o r ed Ma s te r a n d Slave applicatio ns each hold a complete s et of
co n fig ur atio n i n fo r matio n fo r what they co n t r ol.
Fail ur e of o n e mi rr o r ed device immediately make s it s twi n take co n t r ol.
Ethe rn et
Netwo r k
Rou t e r Con tr ol
Panel
Rou t e r Con tr ol
Panel
If the Sha r e r i s n ot available
whe n a n applicatio n come s
o n -li n e, it will us e it s local
ve rs io n of co n fig ur atio n
i n fo r matio n .
If n eithe r the Ma s te r o r Mi rr o r
Ro u te r Co n t r olle r i s available,
the Mat r ix r etai ns it s c urr e n t
c r o ss poi n t s etti n g s .