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Dell PowerStore: Replication Technologies
Executive summary Introduction Remote system configuration Native replication for block and file Asynchronous replication for vVol based VMs Metro Volume System limits Integration with PowerStore Conclusion
Conclusion
Not Appendix A: Replication support across platforms References

Conclusion

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Conclusion

  • This paper describes the various native replication solutions that are provided with PowerStore. Configuring a data-protection solution helps guard against unforeseen situations, such as data loss or site-wide outages. PowerStore provides a remote data-protection solution to help minimize the costs that are associated with downtime and provides easy recovery in a disaster. With asynchronous replication solutions, data protection can be configured to meet the needs of the application and organization.

    Native asynchronous replication is a data-protection solution that replicates storage resources remotely to other remote PowerStore systems. Asynchronous replication uses the PowerStore snapshot technology to provide consistent point-in-time replicas that can be used in a disaster. With asynchronous replication, no impact to host I/O is seen because data is not immediately replicated as it enters the system. Asynchronous replication uses a customizable RPO, which automatically replicates changes in data at consistent intervals. When data must be replicated over long distances, asynchronous replication can meet the needs of an organization.

    PowerStore provides synchronous replication with native Metro Volumes or with the metro node solution. Native Metro Volumes are spanned across two PowerStore clusters and supported for a vSphere Metro Storage cluster configuration. For mapped hosts, a Metro Volume provides fully active/active workloads for high availability and load-balancing of data center resources.

    RecoverPoint for Virtual Machines support allows PowerStore to use its enhanced replication features. Virtual machines running on PowerStore can be replicated locally or remotely to another supported system. With RecoverPoint functionality, such as point-in-time data recovery, PowerStore can be protected from disaster scenarios.