Disaster Recovery
Everpure® Purity 6.0, the latest version of the operating environment for FlashArray™, delivered a major new replication feature called ActiveDR™. ActiveDR is a continuous, asynchronous replication between FlashArrays. Host write operations are acknowledged as soon as they are safely persisted on the replication source array without the need to wait for an acknowledgement from the replication target array. This approach removes the potential write performance penalty related to the replication network latency in synchronous replication environments, such as ActiveCluster™, while delivering near zero recovery point objective (RPO). ActiveDR provides a simple and reliable disaster recovery capability. ActiveDR also includes replicating more than just volumes, corresponding snapshot histories, snapshot schedules, volume settings (like QoS limits), protection groups, and user defined volume tags are also copied to the target array.
MongoDB also includes an increased data availability solution with replica set. In the MongoDB replica set, data is asynchronously copied between primary and one or more secondary nodes. With the built-in protection for a single node failure replica set can be also deployed as a disaster recovery solution. In this article we explore the possibility of deploying MongoDB on FlashArray with ActiveDR as a disaster recovery solution and investigate associated benefits.