Proactive loss notification and handling in data storage devices
Devices, systems, and methods with proactive data loss notification and handling. A data storage device includes a memory and a controller. The controller includes a processor and controller memory. The controller memory stores a set of instructions that, when executed by the processor, instruct the controller to: detect an uncorrectable error correction code (UECC) during an internal data movement process of the storage device memory, modify a metadata field associated with a logical block address corresponding to the UECC, inform a host device about the UECC, and determine whether data stored in at least one adjacent region to the logical block address is lost.
1. A data storage device comprising:
a non-volatile memory; and
a controller comprising an electronic processor and a controller memory, the controller memory storing a set of instructions that, when executed by the electronic processor, instruct the controller to:
detect, with the electronic processor, an uncorrectable error correction code (UECC) during an internal data movement process of the non-volatile memory,
modify a metadata field associated with a logical block address (LBA) corresponding to the UECC,
inform an external electronic device about the UECC, and
determine whether data stored in at least one adjacent region to the LBA is lost.
2. The data storage device of claim 1 , wherein the internal data movement process is a garbage collection process, a wear levelling process, or a read scrub process.
3. The data storage device of claim 1 , wherein, when the electronic processor determines that the data stored in the at least one adjacent region is lost, the instructions further instruct the controller to:
translate a physical address of the at least one adjacent region to a second LBA corresponding to the at least one adjacent region, and
inform the external electronic device that the data stored in the at least one adjacent region is lost.
4. The data storage device of claim 3 , wherein translating the physical address to the second LBA is based on a reverse mapping operation.
5. The data storage device of claim 1 , wherein, when the electronic processor determines that the data stored in the at least one adjacent region is not lost, the instructions further instruct the controller to process a command received from the external electronic device.
6. The data storage device of claim 1 , wherein the non-volatile memory is a NAND memory.
7. The data storage device of claim 1 , wherein the instructions further instruct the controller to:
receive, from the external electronic device, lost data associated with the LBA corresponding to the UECC; and
write the lost data to the non-volatile memory.
8. The data storage device of claim 7 , wherein writing the lost data to the non-volatile memory includes receiving, from an external electronic device, a new write command to write the lost data to the LBA corresponding to the UECC.
9. A method of handling data loss, the method comprising:
detecting, with an electronic processor, an uncorrectable error correction code during an internal data movement process of a data storage device;
modifying a metadata field associated with a logical block address corresponding to the UECC;
informing an external electronic device about the UECC; and
determining whether data stored in at least one adjacent region to the LBA is lost.
10. The method of claim 9 , wherein the internal data movement process is a garbage collection process, a wear levelling process, or a read scrub process.
11. The method of claim 9 , wherein, when the data stored in the at least one adjacent region is lost, the method further comprises:
translating a physical address of the at least one adjacent region to a second LBA corresponding to the at least one adjacent region; and
informing the external electronic device that the data stored in the at least one adjacent region is lost.
12. The method of claim 11 , wherein translating the physical address to the second LBA is based on a reverse mapping operation.
13. The method of claim 9 , wherein, when the data stored in the at least one adjacent region is not lost, the method further comprises processing a command received from the external electronic device.
14. A data storage system comprising:
a data storage device including a memory controller and a memory, the memory controller including an electronic processor and a controller memory; and
an external electronic device including an external electronic device processor and an external electronic device memory;
wherein the controller memory stores a set of instructions that, when executed by the electronic processor, instruct the data storage device to:
detect, with the electronic processor, an uncorrectable error correction code during an internal data movement process of the data storage device,
modify a metadata field associated with a logical block address corresponding to the UECC,
generate a notification to be sent to the external electronic device about the UECC, and
determine whether data stored in at least one adjacent region to the LBA is lost.
15. The data storage system of claim 14 , wherein the internal data movement process is a garbage collection process, a wear levelling process, or a read scrub process.
16. The data storage system of claim 14 , wherein, when the electronic processor determines that the data stored in the at least one adjacent region is lost, the instructions further instruct the data storage device to:
translate a physical address of the at least one adjacent region to a second LBA corresponding to the at least one adjacent region based on a reverse mapping operation, and
inform the external electronic device that the data stored in the at least one adjacent region is lost.
17. The data storage system of claim 14 , wherein, when the electronic processor determines that the data stored in the at least one adjacent region is not lost, the instructions further instruct the data storage device to process a command received from the external electronic device.
18. The data storage system of claim 14 , wherein the external electronic device memory stores a set of instructions that, when executed by the external electronic device processor, instruct the external electronic device to:
receive, with the external electronic device processor, the notification from the electronic processor about the UECC, and
check, with the external electronic device processor, whether the data storage device includes a redundant array of independent disks (RAID) mechanism.
19. The data storage system of claim 18 , wherein, when the external electronic device processor determines that the data storage device includes the RAID mechanism, the instructions further instruct the external electronic device to:
trigger, with the external electronic device processor, the RAID mechanism to recover the data stored in the LBA, and
write, with the external electronic device processor, the data to the data storage device.
20. The data storage system of claim 18 , wherein, when the external electronic device processor determines that the data storage device does not include a RAID mechanism, the instructions further instruct the external electronic device to:
circumvent the UECC, and
reconstruct the data stored in the LBA.