All,
We tried using Double-Take to replicate our DataWarehouse box containing 20TB of data to our DR site but it has failed many times to even do the initial synch up. Every time it breaks during this phase, it restarts the whole syncing process from beginning.
AlwaysOn came up as an option to maintain the DR environment but I told them it is not the right technology for a system like DataWarehouse. Every night we have the daily loads running for 6hrs in addition to the monthly loads that take a lot more time. If we go this route, we have to, change the recovery mode to Full, have the tape backup team backup the database and then restore it on the secondary and eventually synch up and if anything happens to the synch later in the worst case we might have to redo the synch up. The good thing is after the load there are no activities for the replicas to catchup. But I don’t know what the ramifications, in terms of the Transaction Log, are. We could also direct all backups against the DR replica.
I just want to know what technology is being used in other companies/setups.
Thanks,
rajee