[c-nsp] ASR1006 Hardware redundancy question

[Satish Patel]

I am new to ASR1006 and i never work on router with hardware
redundancy so i just want some input and understanding how does it
work. currently we have single component so its not a 100% redundant.

ESP40  - 1
RP2 - 1
SIP - 1
SPA - 4  ( 1x10GB SPA)

Question:

Do i need to configure or run some command to tell router related
redundancy or  its builtin function and it will auto detect number of
component and take decision related Action-Hot standby. Let say in
future i purchase RP2 component and plug into router does my router
auto detect two RP2 processor and enable Redundancy?

Just want to understand how Hardware redundancy will work.

In my current setup where we have all single component in that case we
have single SIP with 4 SPA cards, If one of SPA failed how does it
provide redundancy?