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Learning OpenStack High Availability by Rishabh Sharma

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Geo-replication

Geo-replication is a continuous, distributed, synchronous, and incremental replication service used to replicate from one host/site to another. The mirror process and the replication process are done among the master and slave agents using a graphical replication approach to represent the master and slave.

The master stores volumes. The slaves store local volumes or remote volumes. The replication of data across the geographically distributed storage pools is done through mirroring the data. Thus, this produces a backup of data for disaster recovery.

Creating geo-replication sessions

To create a common pem file, we need to run the following command on the master, and it should have a password-less SSH connection configuration:

gluster ...

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