Dell EMC Unity™ Family Third-Party System Migration using SAN Copy Pull User Guide

High-level overview

Before you begin the migration process:

• Using either the FC or iSCSI protocol, set up a data path connection between the source and destination systems. Do not configure both FC and iSCSI to the same source.
• For either the FC or iSCSI protocol, both destination Unity Storage Processors (SPA and SPB) need to have access to the source storage devices, such as LUNs or volumes. This means that each destination Unity SP should be zoned or connected to ports on the source system that will provide the Unity system access to the source storage devices.
• Create LUNs or VMFS Datastores on the destination Dell EMC Unity system that is running software version 4.4 or later. Create the destination LUN slightly larger (such as 1 GB larger) than the source LUN.
  NOTE Data cannot be migrated from the source system to a consistency group on the destination system. However, once the data has been migrated to a LUN on the destination system, the LUN can be moved into a consistency group.
• Remove host access to the resource on the source system, and add the destination Dell EMC Unity system as a host to the same resource on the source system. This allows the Dell EMC Unity system to access the source resource.

After the migration operation is completed, you must configure host I/O operations on the destination LUN that resides on the destination Dell EMC Unity system.