We're wondering, if we restore the latest offline backup taken from PRD server and restore into the new DR server, will it work? Is it not necessary to install SAP again in DR server? Kindly clarify.
In an Informix or Oracle environment, you only need the BRBACKUP log files, the database backup and archive logs to get the system up and running again. In other environments, in which native database tools are used, the database backup and archive logs should be sufficient. It is more or less the same as when you are doing a homogeneous system copy. You don't need to re-install SAP when rebuilding acceptance with a backup of production. The big difference between a system copy and a DRP is that no or few post-processing is needed as the system SID does not change.
Needless to say, the DRP scenario needs to be rehearsed on a regular basis.
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