Re: replication and high availability architecture

Posted by ErmanArslansOracleBlog on Apr 26, 2019; 11:54am
URL: http://erman-arslan-s-oracle-forum.124.s1.nabble.com/replication-and-high-availability-architecture-tp7360p7363.html

I checked your powerpoint. It seems this is a alternative solution for high availability.
It seems, there is software layer on top of storage systems, which mirrors data between storage space and/or storage devices.
As I see, you mirror the data between the storage spaces using Hypermirror, and you replicate the data between storages using Smartvirtualization.

Although I don't even know these products, this architecture reminds me my old Netapp Storage admin days.
In those times, we were implementing a similar architecture using Netapp snapshot and snapmirror techonologies.

Your architecture seems correct in theory. But I m not a hypermirror expert.
What domain are you talking about? This domain is a hypermirror related thing, I guess..
Using SAS disks for archive data and using SSD disks for  up-to-date/hot data is a good idea, but this domain thing is  another story.
So  I'm not the one who can answer your hypermirror related questions.

Still, I recommend you to have a dataguard configuration for DR. This is because you need to have your database vendor support when something fails during the replication, or when you encounter a problem while you are trying to switch over or fail over to the disaster site.