Using zones to manage capacity reduction due to storage device failure
A system and method for managing a reduction in capacity of a memory sub-system. An example method involving a memory sub-system: configuring the memory device with a zoned namespace comprising a plurality of zones; notifying a host system of a failure associated with a zone of the plurality of zones, wherein the failure affects stored data; receiving from the host system an indication to continue at a capacity that is reduced; recovering the stored data of the zone affected by the failure; and updating the set of memory devices to change the capacity to a reduced capacity.
1. A system comprising:
a memory device; and
a processing device, operatively coupled with the memory device, to perform operations comprising:
configuring the memory device with a zoned namespace comprising a plurality of zones;
notifying a host system of a failure associated with a zone of the plurality of zones, wherein the failure affects stored data;
receiving from the host system an indication to continue at a capacity that is reduced;
recovering the stored data of the zone affected by the failure; and
updating the set of memory devices to change the capacity to a reduced capacity.
2. The system of claim 1 , wherein recovering the stored data comprises:
accessing recovery data stored by the memory device, wherein the recovery data comprises parity data; and
generating the stored data affected by the failure based on the recovery data.
3. The system of claim 1 , wherein the operations further comprise:
locking the zone associated with the failure, wherein the locking comprises a write lock that enables reads by the host system and disables writes by the host system;
providing the host system with data that is recovered in response to a read request for the zone;
deleting all the data in the zone; and
generating recovery data for the set of memory devices based on the reduced capacity.
4. The system of claim 1 , wherein updating the set of memory devices to change the capacity to a reduced capacity comprise updating the zoned namespace to deactivate the zone.
5. The system of claim 1 , wherein the operations further comprise:
indicating to the host system that the capacity of the set of memory devices is unable to store recovered data;
receiving from the host system a storage location to store the recovered data, wherein the storage location is in a main memory of the host system; and
providing the recovered data for storage at the storage location.
6. The system of claim 1 , wherein the notifying comprises transmitting a message that indicates to the host system a set of one or more zones of the plurality of memory devices that are affected by the failure.
7. The system of claim 1 , wherein the system comprises a solid state drive (SSD) and wherein the processing device is a memory controller of the solid state drive.
8. A method comprising:
configuring the memory device with a zoned namespace comprising a plurality of zones;
notifying a host system of a failure associated with a zone of the plurality of zones, wherein the failure affects stored data;
receiving, by a processing device, from the host system an indication to continue at a capacity that is reduced;
recovering the stored data of the zone affected by the failure; and
updating, by the processing device, the set of memory devices to change the capacity to a reduced capacity.
9. The method of claim 8 , wherein recovering the stored data comprises:
accessing recovery data stored by the memory device, wherein the recovery data comprises parity data; and
generating the stored data affected by the failure based on the recovery data.
10. The method of claim 8 , further comprising:
locking the zone associated with the failure, wherein the locking comprises a write lock that enables reads by the host system and disables writes by the host system;
providing the host system with data that is recovered in response to a read request for the zone;
deleting all the data in the zone; and
generating recovery data for the set of memory devices based on the reduced capacity.
11. The method of claim 8 , wherein updating the set of memory devices to change the capacity to a reduced capacity comprise updating the zoned namespace to deactivate the zone.
12. The method of claim 8 , further comprising:
indicating to the host system that the capacity of the set of memory devices is unable to store recovered data;
receiving from the host system a storage location to store the recovered data, wherein the storage location is in a main memory of the host system; and
providing the recovered data for storage at the storage location.
13. The method of claim 8 , wherein the notifying comprises transmitting a message that indicates to the host system a set of one or more zones of the plurality of memory devices that are affected by the failure.
14. The method of claim 8 , wherein the processing device is a memory controller of a solid state drive.
15. A non-transitory computer-readable medium storing instructions, which when executed by a processing device, cause the processing device to perform operations comprising:
configuring a set of memory devices with a zoned namespace comprising a first zone and a second zone;
notifying a host system of a plurality of failures associated with the plurality of zones, wherein a first failure affects stored data of the first zone and a second failure affects stored data of the second zone;
receiving from the host system an indication to continue at a capacity that is reduced after each of the plurality of failures;
recovering the stored data of the first zone that was affected by the failure; and
updating the set of memory devices to change the capacity to a reduced capacity after each of the plurality of failures.
16. The non-transitory computer-readable medium of claim 15 , wherein recovering the stored data comprises:
accessing recovery data stored by the set of memory devices, wherein the recovery data comprises parity data; and
generating the stored data of the first zone based on the recovery data.
17. The non-transitory computer-readable medium of claim 15 , further comprising:
locking the first zone, wherein the locking comprises a write lock that enables reads by the host system and disables writes by the host system;
providing the host system with data that is recovered in response to a read request for the first zone;
deleting all the data in the first zone; and
generating recovery data for the set of memory devices based on the reduced capacity.
18. The non-transitory computer-readable medium of claim 15 , wherein updating the set of memory devices to change the capacity to a reduced capacity comprise updating the zoned namespace to deactivate the first zone.
19. The non-transitory computer-readable medium of claim 15 , wherein the operations further comprise:
indicating to the host system that the capacity of the set of memory devices is unable to store recovered data;
receiving from the host system a storage location to store the recovered data, wherein the storage location is in a main memory of the host system; and
providing the recovered data for storage at the storage location.
20. The non-transitory computer-readable medium of claim 15 , wherein the notifying comprises transmitting a message that indicates to the host system that the first zone is affected by the first failure.