Methods and systems for managing I/O requests to minimize disruption required for data migration

A method, comprising:

• enabling evaluation of a target logical unit associated with a source logical unit after synchronizing the target logical unit with the source logical unit, the enabling comprising:
• redirecting a first plurality of I/O requests that were directed to the source logical unit to the target logical unit, wherein the first plurality of I/O requests comprises write I/O requests;
• redirecting a second plurality of I/O requests that were directed to the target logical unit to the source logical unit;
• preventing the second plurality of I/O requests that were redirected to the source logical unit from accessing the source logical unit;
• and
• directing clones of the write I/O requests in the first plurality of I/O requests to the source logical unit.

A method, comprising:

• enabling evaluation of a target logical unit after encapsulating a source logical unit in a virtual storage device as the target logical unit, the enabling comprising:
• redirecting a first set of I/O requests that were directed to the source logical unit to the target logical unit;
• redirecting a second set of I/O requests that were directed to the target logical unit to the source logical unit;
• and
• preventing the second set of I/O requests that were redirected to the source logical unit from accessing the source logical unit.