Memory system and method of operating the same

A memory system, comprising:

• a memory device including a plurality of memory blocks;
• and
• a controller configured to control the memory device so that a program operation is performed on a first memory block, among the plurality of memory blocks, based on a request from a host,
• wherein, when a program fail occurs during the program operation that is performed on the first memory block, the controller is configured to control the memory device so that a test read operation is performed on second memory blocks in a same super block as the first memory block and configured to control the memory device so that a data shift operation is performed on the second memory blocks based on a result of the test read operation.

A method of operating a memory system, comprising:

• performing a program operation on a memory block that is selected from among a plurality of memory blocks;
• when a program fail occurs in the selected memory block, performing a test read operation on remaining memory blocks, besides the selected memory block, included in a same super block as the selected memory block;
• and
• performing a data shift operation on memory blocks, among the remaining memory blocks, in which a read fail has occurred as a result of the test read operation.