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Message: <blockquote data-quote="Nisala88" data-source="post: 26188573" data-attributes="member: 8045">you have a primary site with production servers.You have a near-site environment configured with servers just as the primary site close to the primary site. There may be more than one near-site.You have a disaster recovery site (dr site) configured with servers just as the primary site mostly on a remote data centre away from the primary site.Production servers replicate their data to the near-site and dr site on a real-time/daily/monthly/quarterly basis.If something happens to the production site, the connection switches to the near-site (this happens automatically or manually based on the configuration)If something happens to both the primary site and the near-site, the connection has to be switched to the dr site. most of the time dr site is not configured to automatically linked - this may be based on the architecture and the requirement.This is the most basic explanation for doing this. there are things like load balancing with multiple servers, fault tolerance techniques are using based on the architecture.</blockquote>

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