high availability and DR architecture

Posted by Roshan on Jun 30, 2017; 8:42am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/high-availability-and-DR-architecture-tp2874.html

Hi,

We have a production environment (2 nodes RAC with grid ASM 12c), OS: Red Hat Linux.

We are planning to implement a DR(Dataguard) with it.

First option is we use a shard VSAN storage
DR.png

Second option is we use extended RAC cluster but this technology does not support full DR.
extendedracversion11-435972.pdf
On page 16, it says look for alternatives to mirroring the storage in addition to a full DR solution.
Should I user VSAN storage for production site and SAN storage for second site(DR) for mirroring?

To implement full DR, the doc says to use RAC One node. How is it different from Extend RAC cluster?

Please advise.

Regards,
ROshan