Data storage system with dynamic erase block grouping mechanism and method of operation thereof

A data storage system, comprising:

• one or more processors;
• and
• memory storing one or more programs to be executed by the one or more processors, the one or more programs comprising instructions for:
• maintaining metadata for each erase block of a plurality of erase blocks in the data storage system, wherein a respective metadata for a respective erase block includes one or more characteristics of the respective erase block;
• allocating a set of erase blocks, of the plurality of erase blocks, as unassociated erase blocks;
• selecting two or more unassociated erase blocks in accordance with characteristics of the unassociated erase blocks so as to select unassociated erase blocks with similar characteristics, wherein the selecting includes enforcing a minimum amount of dwell time for the unassociated erase blocks, wherein dwell time is the amount of time between operations on a respective erase block;
• and
• grouping the two or more unassociated erase blocks with similar characteristics to form a super block.

A non-transitory computer readable storage medium, storing one or more programs configured for execution by one or more processors of a data storage system, the one or more programs including instructions for:

• maintaining metadata for each erase block of a plurality of erase blocks in the data storage system, wherein a respective metadata for a respective erase block includes one or more characteristics of the respective erase block;
• allocating a set of erase blocks, of the plurality of erase blocks, as unassociated erase blocks;
• selecting two or more unassociated erase blocks in accordance with characteristics of the unassociated erase blocks so as to select unassociated erase blocks with similar characteristics, wherein the selecting includes enforcing a minimum amount of dwell time for the unassociated erase blocks, wherein dwell time is the amount of time between operations on a respective erase block;
• and
• grouping the two or more unassociated erase blocks with similar characteristics to form a super block.