Selective storage of address mapping metadata in a system having multiple memories

摘要

This disclosure is related to systems and methods for selective metadata storage in a system having multiple memories. In one example, a device may include a control circuit configured to selectively store a metadata base map in a first memory or a second memory. The metadata base map may include information to determine a physical memory address from a logical block address. The control circuit may also be configured to store metadata updates separately from the metadata base map. The metadata updates may comprise changes to the metadata base map. The control circuit may also be configured to selectively store the metadata updates in the first memory or the second memory based on characteristics of the device.

主权项

1. A device comprising:
a control circuit configured to:
select a memory from a first memory and a second memory in which to store a metadata base map, the metadata base map including information to determine a physical memory address from a logical block address;store metadata updates separately from the metadata base map, the metadata updates comprising changes to the metadata base map; andselect between the first memory and the second memory to store the metadata updates based on characteristics of the device.