Substitution of a target volume of a secondary storage controller for a source volume of a primary storage controller for executing a write operation

A method for deploying computing infrastructure, comprising integrating computer-readable code into a computational system, wherein the code in combination with the computational system performs operations, the operations comprising:

• receiving, by a secondary storage controller, metadata that uniquely identifies a source volume of a primary storage controller;
• synchronously copying data stored in the source volume of the primary storage controller to a target volume of the secondary storage controller;
• receiving, at the secondary storage controller, a command from a primary host to write selected data to the source volume;
• and
• in response to receiving the command at the secondary storage controller, writing the selected data to the target volume of the secondary storage controller.