Redundancy and load balancing in D2000

Does D2000 support redundancy? Like, redundant application servers or redundant processes or communication via redundant network?
If so, what are the limits - e.g. how many redundant application servers can there be? Can they be in geographically different locations (if so, are there any latency requirements?)

All necessary answers are located here :
https://doc.ipesoft.com/display/D2DOCV12EN/Redundancy+of+Application+Server
https://doc.ipesoft.com/display/D2DOCV12EN/Redundant+Archiving
https://doc.ipesoft.com/display/D2DOCV12EN/Redundancy+of+communication+process+KOM
and ones very nice article :