METHOD AND APPARATUS FOR A VOLUME MANAGEMENT SYSTEM IN A NON-VOLATILE MEMORY DEVICE

摘要

Embodiments for partitioning a non-volatile memory device is described. In one embodiment a memory system includes a first addressable range of memory blocks for storing different types of data. The memory system is partitioned to include a second addressable range of memory blocks capable of storing data indicating attributes of the first addressable range of memory blocks. The second addressable range of memory blocks may also be periodically updated such that the capacities of the first addressable range of memory blocks may be dynamically adjusted depending on application needs and changes to the non-volatile memory device over time In some embodiments, one partition of a memory device may be configured for high reliability data storage while a second partition is configured for normal reliability storage.

主权项

1. A system comprising:
a memory array of multi-level memory cells; a first addressable range of memory blocks of the memory array, the first addressable range of memory blocks configured as single level memory cells, and further configured to store read data, the first addressable range comprising a first error correcting code (“ECC”) to correct errors in the read data; a second addressable range of memory blocks of the memory array, the second addressable range of memory blocks configured to store user data, the second addressable range comprising a second ECC to correct errors in the user data; and a third addressable range of memory blocks of the memory array, the third addressable range of memory blocks configured to:
store first device information regarding the first addressable range and second device information regarding the second addressable range, wherein a partition size of the first addressable range and the second addressable range are included the first and second device information; andtrack an update to the first device information and the second device information according to a block map including partition information regarding the first addressable range and the second addressable range, and wherein the third addressable range is located at a fixed location in the system.