@Anshul_Lokras  Could you please give me the steps for in place upgrade from 6.4 to 6.5.  Thanks.

@shelly-goel : Thank you very much for the info and the suggestions. Really appreciated.

@shelly-goelThanks for the response.  I am not looking for snapshot or storage backup.Our environment is having only one author. so if that author goes down, immediately to switch over to any secondary author( which has same information like mirror of primary author).  Usually in databases we have p...

How can I Implement a secondary dynamic backup server for an AEM Author ? During disaster recovery times, I can switch the secondary author server to the primary author in such instance.  Any suggestions, would be much appreciated.TIA.