Data storage migration in replicated environment

A method, comprising:

• receiving, by a processor in a second node cluster storage system communicatively coupled to a legacy storage system and to a first cluster storage system, information from the first node cluster storage system, the information representing a virtual data structure corresponding to replicated data maintained in the legacy data storage system;
• creating a virtual data structure based on the information;
• attempting to read data from the legacy data storage system to create a real data structure corresponding to the virtual data structure;
• and
• in response to a successful attempt to read the data, verifying whether the data in the real data structure is consistent with counterpart data maintained at the first node cluster storage system.

A machine-readable storage medium, comprising executable instructions that, when executed by a processor of second node cluster storage system in a replicated storage environment, facilitate performance of operations, the operations comprising:

• receiving information from a first node cluster storage system, the information representing a virtual data structure corresponding to legacy data maintained in a legacy data storage system that is locally coupled to the second node cluster storage system;
• creating a virtual data structure based on the information;
• and
• reading a copy of the legacy data from the legacy data storage system into storage space allocated in the second node cluster storage system to provide a real data structure that maintains, in the second node cluster storage system, a replicated copy of the data.