Then FreePBX HA isn't for you! You can do what you want with the Backup module, for free, in that case 
(Edit: On re-reading, I should clarify, HA doesn't need any special hardware. It'll work with two of anything that's reasonably similar. But for people that DO care about less-than-a-second-per-year outages, you do want to get proper hardware, with IPMI support. HA supports DRAC, ILO, VMware and Generic IPMI)
Use the 'Restore to this server' option in Backup, and you can have a warm standby machine ready to go, and completely up to date (possibly missing some voicemails) that'll only need you to log in and change the IP address to get your phone system up and working.