System for delaying acknowledgements on open NAND locations until durability has been confirmed

1. A system comprising:

a plurality of solid-state storage devices; and

a storage controller coupled to the plurality of solid-state storage devices, the storage controller comprising a processing device, the processing device to:

receive a write request from a host computing device, the write request comprising data to be stored at one or more of the plurality of solid-state storage devices;

send an acknowledgement to the host computing device in response to receipt of the write request;

store the data at the one or more of the plurality of solid-state storage devices;

determine whether the data stored at the one or more of the plurality of solid-state storage devices is readable by determining whether a number of subsequent programming operations have been performed since the data was stored at the one or more of the plurality of solid-state storage devices; and

notify, by the processing device, the host computing device that the stored data is readable from the one or more of the plurality of solid-state storage devices upon determining that the data is readable.

2. The system of claim 1 , wherein the number of subsequent programming operations is based on a type of programming operation utilized to store the data at the one or more of the plurality of solid-state storage devices.

3. The system of claim 1 , wherein the processing device is further to:

notify the host computing device that the stored data is readable by successfully reading back at least a portion of other data stored at the one or more of the plurality of solid-state storage devices, wherein the other data is stored at the one or more of the plurality of solid-state storage devices after the stored data.

4. The system of claim 1 , wherein the processing device is further to:

maintain an event log to identify locations in the one or more of the plurality of solid-state storage devices where the stored data is readable in the event of a power loss to the system.

5. The system of claim 1 , wherein the processing device is further to:

after the acknowledgment to the host computing device has been sent, buffer the data in a data buffer, wherein the buffered data is to be sent to the one or more of the plurality of solid-state storage devices for storage.

6. The system of claim 5 , wherein the processing device is further to:

assign a sequence number to the previously stored data that is readable upon receiving an acknowledgment from the one or more of the plurality of solid-state storage devices that the previously stored data is readable.

7. The system of claim 5 , wherein the processing device is further to:

receive an acknowledgement from the one or more of the plurality of solid-state storage devices that the sent buffered data has been received.

8. A method comprising:

receiving a write request from a host computing device, the write request comprising data to be stored at one or more of a plurality of solid-state storage devices;

sending an acknowledgement to the host computing device in response to receipt of the write request;

storing the data at the one or more of the plurality of solid-state storage devices;

determining whether the data stored at the one or more of the plurality of solid-state storage devices is readable by determining whether a number of subsequent programming operations have been performed since the data was stored at the one or more of the plurality of solid-state storage devices; and

notifying the host computing device that the stored data is readable from the one or more of the plurality of solid-state storage devices upon determining that the data is readable.

9. The method of claim 8 , wherein the number of subsequent programming operations is based on a type of programming operation utilized to store the data at the one or more of the plurality of solid-state storage devices.

10. The method of claim 8 , further comprising:

notifying the host computing device that the stored data is readable by successfully reading back at least a portion of other data stored at the one or more of the plurality of solid-state storage devices, wherein the other data is stored at the one or more of the plurality of solid-state storage devices after the stored data.

11. The method of claim 8 , further comprising:

maintaining an event log to identify locations in the one or more of the plurality of solid-state storage devices where the stored data is readable in the event of a power loss to a system.

12. The method of claim 8 , further comprising:

after the acknowledgment to the host computing device has been sent, buffering the data in a data buffer, wherein the buffered data is sent to the one or more of the plurality of solid-state storage devices for storage.

13. The method of claim 12 , further comprising:

assigning a sequence number to the previously stored data that is readable upon receiving an acknowledgment from the one or more of the plurality of solid-state storage devices that the previously stored data is readable.

14. The method of claim 12 , further comprising:

receiving an acknowledgement from the one or more of the plurality of solid-state storage devices that the sent buffered data has been received.

15. A non-transitory computer readable storage medium storing instructions, which when executed, cause a processing device to:

receive a write request from a host computing device, the write request comprising data to be stored at one or more of a plurality of solid-state storage devices;

send an acknowledgement to the host computing device in response to receipt of the write request;

store the data at the one or more of the plurality of solid-state storage devices;

determine whether the data stored at the one or more of the plurality of solid-state storage devices is readable by determining whether a number of subsequent programming operations have been performed since the data was stored at the one or more of the plurality of solid-state storage devices; and

notify, by the processing device, the host computing device that the stored data is readable from the one or more of the plurality of solid-state storage devices upon determining that the data is readable.

16. The non-transitory computer readable storage medium of claim 15 , wherein the processing device is further to:

notify the host computing device that the stored data is readable by successfully reading back at least a portion of other data stored at the one or more of the plurality of solid-state storage devices, wherein the other data is stored at the one or more of the plurality of solid-state storage devices after the stored data.

17. The non-transitory computer readable storage medium of claim 15 , wherein the processing device is further to:

maintain an event log to identify locations in the one or more of the plurality of solid-state storage devices where the stored data is readable in the event of a power loss to a system.

18. The non-transitory computer readable storage medium of claim 15 , wherein the processing device is further to:

after the acknowledgment to the host computing device has been sent, buffer the data in a data buffer, wherein the buffered data is to be sent to the one or more of the plurality of solid-state storage devices for storage.

19. The non-transitory computer readable storage medium of claim 18 , wherein the processing device is further to:

assign a sequence number to the previously stored data that is readable upon receiving an acknowledgment from the one or more of the plurality of solid-state storage devices that the previously stored data is readable.

20. The non-transitory computer readable storage medium of claim 18 , wherein the processing device is further to:

receive an acknowledgement from the one or more of the plurality of solid-state storage devices that the sent buffered data has been received.