Dell EMC Unity: Replication Technologies

1 Dell Unity: Replication Technologies | Technical White Paper Dell Unity: Replication Technologies A Detailed Review Abstract This white paper explains the Replication solutions for Dell Unity systems. This paper outlines the native and non-native options available for replicating data. It also includes information about managing Replication , and the benefits that Replication provides. Native file synchronous Replication is covered separately in the Dell Unity: MetroSync white paper which can be found on Dell Technologies Info Hub. April 2022 Revisions Dell Unity: Replication Technologies | Revisions Date Description May 2016 Initial release Operating Environment version December 2016 Updated for Operating Environment version July 2017 Updated for Operating Environment version March 2018 Updated for Operating Environment version August 2018 Updated for Operating Environment version January 2019 Updated for Operating Environment version June 2019 Updated for Operating Environment version January 2021 Metro node updates June 2021 Template and format updates.

2 Updated for Operating Environment version April 2022 Updated for Operating Environment version Acknowledgments Author: Ryan Poulin Updated by: Kenneth Avil s Padilla The information in this publication is provided as is. Dell Inc. makes no representations or warranties of any kind with respect to the information in this publication, and specifically disclaims implied warranties of merchantability or fitness for a particular purpose. Use, copying, and distribution of any software described in this publication requires an applicable software license. This document may contain certain words that are not consistent with Dell's current language guidelines.

3 Dell plans to update the document over subsequent future releases to revise these words accordingly. This document may contain language from third party content that is not under Dell's control and is not consistent with Dell's current guidelines for Dell's own content. When such third party content is updated by the relevant third parties, this document will be revised accordingly. Copyright 2016-2022 Dell Inc. or its subsidiaries. All Rights Reserved. Dell Technologies , Dell, EMC, Dell EMC and other trademarks are trademarks of Dell Inc. or its subsidiaries. Other trademarks may be trademarks of their respective owners. [4/29/2022] [Technical White Paper] [ ] Table of contents Dell Unity: Replication Technologies | Table of contents 2 Acknowledgments.

4 2 Table of contents .. 3 Executive summary .. 6 Audience .. 6 1 Introduction .. 7 Terminology .. 7 2 Native synchronous block Replication .. 10 Licensing .. 10 Theory of operation .. 10 Synchronous Replication 10 Synchronous Replication Management Ports .. 11 Replication Connections .. 12 Replication Sessions .. 12 Storage Resources .. 13 Replication Roles .. 13 Replication Operations .. 14 Pause and Resume .. 14 Failover and Failback .. 14 Delete .. 15 Data Protection Mechanisms .. 16 Fracture Log .. 16 Write Intent Log .. 16 Supported Replication Configurations .. 17 Unisphere Management .. 18 Configuring Replication .

5 18 Synchronous Replication Management Ports .. 18 Creating a Replication Connection .. 20 Creating a Replication Session .. 21 Viewing the Replication Sessions .. 26 System Maximums .. 27 3 Native Asynchronous 28 Licensing .. 28 Theory of Operation .. 28 Replication Interfaces .. 28 Table of contents Dell Unity: Replication Technologies | Replication Connections .. 30 Replication Sessions .. 35 Asynchronous Replication Internal Snapshots .. 36 Storage Resources .. 37 Replication Roles .. 38 Replication Operations .. 39 Pause and Resume .. 39 Sync .. 40 Failover with Sync, Failover, and Failback .. 40 Delete.

6 42 Group Operations .. 42 Supported Replication Configurations .. 44 Local Replication .. 44 Remote Replication .. 45 MetroSync .. 46 Advanced File Remote Replication .. 46 Snapshot Replication .. 53 Unisphere Management .. 54 Configuring Replication .. 54 Creating Replication Interfaces .. 55 Creating a Replication Connection .. 56 Creating a Replication Session .. 58 Restore from a replicated 68 Override network address for file Replication .. 68 Enable NDMP on NAS Server .. 69 Viewing the Replication Sessions .. 70 System Maximums .. 71 4 Proxy NAS Servers .. 72 5 Interoperability .. 73 Common Base Snapshots.

7 73 Create Replication session by reusing destination resource .. 73 Accelerating Failback/Resume after unplanned failover with common base snapshots .. 77 File Import .. 78 Data Reduction .. 78 Dynamic Pools .. 79 6 Upgrades .. 81 Table of contents Dell Unity: Replication Technologies | 7 RecoverPoint with Dell Unity .. 82 8 Metro node .. 83 9 Conclusion .. 84 A Technical support and resources .. 85 Related 85 B Appendix: Replication Maximums .. 86 C Appendix: Replication Support Across 87 Executive summary Dell Unity: Replication Technologies | Executive summary Data is often one of the most valuable assets to an organization.

8 It is being accessed constantly by the various applications, users, and sometimes directly by customers of the organization. This makes data a crucial part of the day-to-day operations of an organization. Outages can happen at any time, and can be restricted to a single system, or an entire data center or location. Whether they are planned outages, such as regular maintenance, or unplanned such as a power outage, ensuring that data critical to the organization is available at all times is a top priority. A business continuity plan for critical data is suggested to prevent costly outages. To protect against the different scenarios, an organization should plan and implement a data protection strategy.

9 A data Replication solution can ensure business continuity, high availability, and data protection. Dell Unity provides native and non-native solutions that will help you protect your data and meet the goals of your business for both data availability and protection. Dell Unity systems provide synchronous and asynchronous Replication solutions which allow you to replicate data locally within the same system, or to other systems, whether they are located at the same site or a remote facility. Having remote replicas of data protects you against outages on the main system and allows you to recover quickly and easily on a destination system with minimal to no data loss depending on the Replication method selected.

10 This white paper describes the following Replication Technologies for Dell Unity: Native Synchronous Block Replication Native Asynchronous Block and File Replication Dell EMC RecoverPoint Dell Unity also supports native file synchronous Replication . For information about native file synchronous Replication and MetroSync Manager, reference the Dell Unity: MetroSync white paper on Dell Technologies Info Hub. Synchronous Block Replication , Asynchronous Block and File Replication , and Manual Replication can easily be configured and managed in Unisphere, Unisphere CLI, or REST API. Unisphere is a simple and intuitive HTML5 web-based interface which not only allows users to configure and manage their Replication setup, but also provides a visual representation of the configuration.