Garbage collection in a memory sub-system during a low battery state
Systems, apparatuses, and methods related to media management, including “garbage collection,” in memory or storage systems or sub-systems, such as solid state drives, are described. For example, a battery state associated with the memory system or sub-system may be used as an indicator or basis for managing a garbage collection operation on a data block. A controller or the system or sub-system may determine that a battery state or condition satisfies a criterion. Based on determining that the criterion is satisfied the, the garbage collection operation may be postponed until the battery state changes to satisfy a different battery condition.
1. A system comprising:
a physical interface configured to be coupled to a memory device of a memory sub-system; and
a processing device coupled with the physical interface and configured to:
determine that an amount of invalid data of a first block stored on the memory device satisfies a threshold level for attempting to perform a garbage collection operation for the first block, the garbage collection operation for the first block comprising a migration of one or more pages of the first block that contain valid data to a second block stored on the memory device;
determine a battery life state of a battery associated with the memory sub-system;
postpone the garbage collection operation for the first block based at least in part on a determination that the battery life state is below a first battery life threshold;
determine whether the battery life state changes to be equal to or above a second battery life threshold; and
perform the garbage collection operation for the first block based at least in part on a determination that the battery life state changes to be equal to or above the second battery life threshold.
2. The system of claim 1 , wherein the threshold level corresponds to a threshold amount of data that indicates that the garbage collection operation can be optionally performed for the first block.
3. The system of claim 1 , wherein the first battery life threshold is equal to the second battery life threshold.
4. The system of claim 1 , wherein the first battery life threshold is different from the second battery life threshold.
5. The system of claim 1 , wherein the processing device is further configured to continue postponing the garbage collection operation for the first block based at least in part on a determination that the battery life state is below the second battery life threshold.
6. The system of claim 1 , wherein the processing device is further configured to perform the garbage collection operation for the first block based on a determination that the amount of invalid data on the first block satisfies a second threshold level, and wherein the second threshold level corresponds to a threshold amount of data that indicates that the garbage collection operation for the first block must be performed.
7. A method comprising:
determining, by a processing device, that an amount of invalid data on a first block stored on a memory device of a memory sub-system satisfies a threshold level for attempting to perform a garbage collection operation for the first block, the garbage collection operation for the first block comprising a migration of one or more pages of the first block that contain valid data to a second block stored on the memory device;
determining, by the processing device, a battery life state of a battery associated with the memory sub-system;
postponing, by the processing device, the garbage collection operation for the first block based at least in part on a determination that the battery life state is below a first battery life threshold;
determining, by the processing device, whether the battery life state changes to be equal to or above a second battery life threshold; and
performing, by the processing device, the garbage collection operation for the first block based at least in part on a determination that the battery life state is equal to or above the second battery life threshold.
8. The method of claim 7 , wherein the threshold level corresponds to a threshold amount of data that indicates that the garbage collection operation can be optionally performed for the first block.
9. The method of claim 7 , further comprising continuing, by the processing device, postponing the garbage collection operation for the first block based at least in part on a determination that the battery life state is below the second battery life threshold.
10. The method of claim 7 , wherein the garbage collection operation for the first block is further performed based on a determination that the amount of invalid data on the first block satisfies a second threshold level, and wherein the second threshold level corresponds to a threshold amount of data that indicates that the garbage collection operation for the first block must be performed.
11. The method of claim 7 , wherein the first battery life threshold is equal to the second battery life threshold.
12. The method of claim 7 , wherein the first battery life threshold is different from the second battery life threshold.
13. A non-transitory computer-readable storage medium comprising instructions that, when executed by a processing device, cause the processing device to:
determine that an amount of invalid data of a first block stored on a memory device of a memory sub-system satisfies a threshold level for attempting to perform a garbage collection operation for the first block, the garbage collection operation for the first block comprising a migration of one or more pages of the first block that contain valid data to a second block stored on the memory device;
determine a battery life state of a battery associated with the memory sub-system;
postpone the garbage collection operation for the first block based at least in part on a determination that the battery life state is below a first battery life threshold;
determine whether the battery life state changes to be equal to or above a second battery life threshold; and
perform the garbage collection operation for the first block based at least in part on a determination that the battery life state is equal to or above the second battery life threshold.
14. The non-transitory computer-readable storage medium of claim 13 , wherein the threshold level corresponds to a threshold amount of data that indicates that the garbage collection operation can be optionally performed for the first block.
15. The non-transitory computer-readable storage medium of claim 13 , wherein the processing device is further configured to continue postponing the garbage collection operation for the first block based at least in part on a determination that the battery life state is below the second battery life threshold.
16. The non-transitory computer-readable storage medium of claim 13 , wherein the processing device is further configured to perform the garbage collection operation for the first block based on a determination that the amount of invalid data on the first block satisfies a second threshold level, and wherein the second threshold level corresponds to a threshold amount of data that indicates that the garbage collection operation for the first block must be performed.
17. The non-transitory computer-readable storage medium of claim 13 , wherein the first battery life threshold is equal to the second battery life threshold.
18. The non-transitory computer-readable storage medium of claim 13 , wherein the first battery life threshold is different from the second battery life threshold.