Don't let equipment failure on your server put your business on hold.
A BDR appliance will allow you to continue to run while your equipment is repaired or replaced. Read more here.
A power surge hits, your server's power supply quits working but you still have business to do. It could be several days before the new power supply arrives. What do you do?
Well, you could panic, get mad, scream, etc....but that won't do you any good.
If you have a BDR (backup and disaster recovery) appliance in place, you will do none of the above. You can simply "spin up" your failed server on the BDR and operate as usual while your server is being repaired.
The time to think about putting in a BDR is not when you actually need to use it and when everyone's in a panic , but NOW while your systems are up and operational.