Non-disruptive data migration among storage devices using integrated virtualization engine of a storage device

Computer software, stored in a non-transitory computer-readable storage medium, that transfers I/O from a first storage device coupled to a storage area network to a second storage device coupled to the storage area network, the software comprising:

• executable code that blocks I/O operations for a first port of the first storage device coupled to the storage area network, wherein the first port of the first storage device is associated with an identifier;
• executable code that establishes a connection between the second storage device and the storage area network via a first port of the second storage device associated with the identifier;
• executable code that establishes a connection between a host and the first port of the second storage device to cause I/O operations by the host to be routed to the second storage device, wherein the second storage device appears to the host to be the first storage device;
• and executable code that establishes a connection between a second port of the first storage device and the storage area network and that migrates data from the first storage device to the second storage device through the second port of the first storage device following blocking I/O operations for the first port of the first storage device and using the first port of the second storage device associated with the identifier.

A system for redirecting I/O operations, comprising:

• a storage area network;
• a first storage device coupled to the storage area network via a first port of the first storage device associated with an identifier;
• and
• a second storage device coupled to the storage area network via a first port of the second storage device associated with the identifier, wherein the first port of the first storage device is blocked and I/O operations are routed to the second storage device through the storage area network, wherein the second storage device appears to an external device to be the first storage device, and wherein, following blocking I/O operations for the first port of the first storage device, a second port of the first storage device is coupled to the storage area network and data is migrated from the first storage device to the second storage device through the second port of the first storage device and using the first port of the second storage device associated with the identifier.