InterspaceKnowledgebaseDocumentationCloudDisaster Recovery Replication for a Web Site
Disaster Recovery Replication for a Web Site
Replication is a process of continuous creation of an identical standby web server (called replica) of the primary web server in another data center located at a safe distance of at least 100 km. The replication is enabled for every web server, including every web site. You do not need to configure anything or do regular maintenance activities for the replication, the Interspace Cloud Platform automatically runs all the complex operations in the background.

The replica and the primary web server are kept in sync by constant data transfer between them. The transfer is carried over geo redundant ultra high speed lines (Nx100Gbps), to ensure creation of replica in real time, even when the primary server undergoes intensive writes on super fast NVMe disks and even when one of the redundant lines is down. The replication does not affect the web server performance nor it slows down the connection, as it uses independent dedicated resources.

In the case of an incident in the primary data center, the replica starts and continue to run from the disaster recovery data center, without the need of preparing new web servers and related infrastructure, as well as restoring from backup copies.

Please note that replication is not a substitute for a website backup. If there is an incident at the primary data center and the current state of the web site is "faulty", as in the case where the Content Management System is already running with errors or certain web scripts are misconfigured, the replica will contain only the last "faulty" condition of the web site. For such cases you can protect the data by activating the Automatic Backups feature, which will enable you to restore the web site to an earlier "good" version.

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