HAC has limited support on spare scenarios. It can be used in a spare, but before HAC in the Primary node is able to start monitoring the HSB state of the spare server, the connect information for the Primary HAC (RemoteDB.Connect) must be updated. You must update the solidhac.ini file and restart the HAC in the Primary node.

Similarly, the HAC in the spare node needs the connect information of the Primary server. If the connect information is not known beforehand, the information must be added in the solidhac.ini file. After you have added the information to solidhac.ini, you must restart HAC.