I'm looking to get your opinion on a disaster recovery option for DB2 running on AIX.
I have a production data center and a disaster recovery site 12 miles away. The SLA to get the DR site up and running is 4 hours. We have been told we can do disk mirroring….the entire AIX server will be copied to the DR site via hardware replication. I also have the ability to use HADR. Primary in the production site. Secondary server will be in the DR site. Which is best, hardware disk mirroring, or HADR? The application we will be supporting will be using hardware replication. What would you recommend and why?