* Understanding the Scenario:
* The customer has mission-critical applications that need to be backed up to a remote location with a latency of 7 ms.
* Nutanix Technology Options:
* AsyncDR: Provides asynchronous replication with typically higher RPO (Recovery Point Objective) than NearSync.
* NearSync: Offers near-synchronous replication with RPO as low as 1 minute, suitable for low-latency connections like the 7 ms latency mentioned.
* Metro Availability: Provides synchronous replication with zero RPO but requires a higher bandwidth and lower latency connection (typically sub-millisecond).
* Leap: A comprehensive DR orchestration solution that includes AsyncDR and NearSync but is not a standalone replication technology.
* Evaluation of NearSync:
* NearSync is designed to provide low RPO (as low as 1 minute) by taking frequent lightweight snapshots.
* It is well-suited for environments with moderate latency (like 7 ms) and can handle the backup
* requirements efficiently without the need for extremely low latency and high bandwidth required by synchronous replication solutions like Metro Availability.
* Conclusion:
* Given the latency of 7 ms and the need for short RPO, NearSync is the most suitable Nutanix technology to provide the shortest RPO.
References: Nutanix Bible and Nutanix NDB User Guide details on NearSync and its operational parameters.