Abstract: A method includes, for a memory die including at least first and second memory planes, each including multiple physical memory blocks, holding a definition of a redundancy mapping between first memory blocks in the first memory plane and respective second memory blocks in the second memory plane, such that a physical separation on the die between each first physical memory block and a corresponding second physical memory block meets a predefined criterion. Data is stored in one or more first physical memory blocks in the first memory plane. Redundancy information is stored relating to the data in one or more second physical memory blocks in the second memory plane that are mapped by the redundancy mapping to the one or more first physical memory blocks.

Abstract: A method includes, for a memory die including at least first and second memory planes, each including multiple physical memory blocks, holding a definition of a redundancy mapping between first memory blocks in the first memory plane and respective second memory blocks in the second memory plane, such that a physical separation on the die between each first physical memory block and a corresponding second physical memory block meets a predefined criterion. Data is stored in one or more first physical memory blocks in the first memory plane. Redundancy information is stored relating to the data in one or more second physical memory blocks in the second memory plane that are mapped by the redundancy mapping to the one or more first physical memory blocks.

Abstract: A method includes calculating redundancy information over a set of data items, and sending the data items for storage in a memory. The redundancy information is retained only until the data items are written successfully in the memory, and then discarded. The data items are recovered using the redundancy information upon a failure in writing the data items to the memory.