Error correction code in memory

A method comprising:

• determining, by a memory controller, that a first portion of primary ECC is not sufficient to correct an error within a first data block, wherein a first region of memory allocated for primary error correcting code (ECC) is spread across at least a first subset of a first memory die belonging to a plurality of memory die on a memory module;
• accessing, by the memory controller, a second portion of a secondary ECC, wherein a second region of memory allocated for the secondary ECC is spread across at least a second subset of the first memory die and a third subset of a second memory die belonging to the plurality of memory die and the first region is separate from the second region;
• and
• correcting, by the memory controller, the error using the primary and secondary ECC.

A system comprising:

• a primary ECC handler to determine that a first portion of primary ECC is not sufficient to correct an error within a first data block, wherein a first region of memory allocated for primary error correcting code (ECC) spread across a first subset of at least one memory die belonging to a plurality of memory die on a memory module;
• a secondary ECC handler to access a portion of a secondary ECC, wherein a second region of memory allocated for secondary ECC is spread across at least a second subset of the first memory die and a third subset of a second memory die belonging to the plurality of memory die and the first region is separate from the second region;
• and
• an error corrector to correct the error using the primary and secondary ECC.