Delaying requested deletion of datasets

Patent metadata

Field	Value
Publication number	US-12443359-B2
Application number	US-202318449814-A
Country	US
Kind code	B2
Filing date	Aug 15, 2023
Priority date	Jan 10, 2013
Publication date	Oct 14, 2025
Grant date	Oct 14, 2025

Abstract

Delaying deletion of a dataset, including: determining that deletion of a dataset at a storage system should be delayed by an amount of time representing a time period between a requested deletion time and a delayed deletion time; and delaying deletion of the dataset based on the determined amount of time.

First claim

What is claimed is:

1. A method comprising:
determining to delay deletion of a dataset at a storage system by an amount of time corresponding to a time period between a requested deletion time for the dataset and a delayed deletion time for the dataset, wherein the delayed deletion time is modifiable after the requested deletion time; and
delaying deletion of the dataset based on the amount of time.

2. The method of claim 1 further comprising modifying the amount of time based on an analysis of storage system capacity at a plurality of storage systems that includes the storage system.

3. The method of claim 2 further comprising obtaining the amount of time using an artificial intelligence model trained on capacity data for the plurality of storage systems.

4. The method of claim 1 further comprising:
associating, with the dataset, an eradication timer that corresponds to the amount of time;
detecting that the dataset has become unavailable; and
pausing expiration of the eradication timer until the dataset has become available again.

5. The method of claim 4 further comprising:
detecting that the eradication timer has expired;
determining, based on a retention policy, that the dataset can be retained beyond the expiration of the eradication timer; and
continuing to delay the deletion of the dataset after the expiration of the eradication timer.

6. The method of claim 4 further comprising:
receiving a request to restore the dataset prior to the expiration of the eradication timer; and
disregarding the request to delete the dataset.

7. The method of claim 1 , further comprising determining that the amount of time to delay the requested deletion of the dataset should be modified, wherein the determination is carried out in dependence upon on one or more eradication timer modification policies.

8. An apparatus comprising:
a memory; and
a processing device, operatively coupled to the memory, the processing device configured to:
determine to delay deletion of a dataset at a storage system by an amount of time corresponding to a time period between a requested deletion time for the dataset and a delayed deletion time for the dataset, wherein the delayed deletion time is modifiable after the requested deletion time; and
delay deletion of the dataset based on the amount of time.

9. The apparatus of claim 8 , wherein the processing device is further configured to:
modify the amount of time based on an analysis of storage system capacity at a plurality of storage systems that includes the storage system.

10. The apparatus of claim 9 , wherein the processing device is further configured to:
obtain the amount of time using an artificial intelligence model trained on capacity data for the plurality of storage systems.

11. The apparatus of claim 8 , wherein the processing device is further configured to:
associate, with the dataset, an eradication timer that corresponds to the amount of time;
detect that the dataset has become unavailable; and
pausing expiration of the eradication timer until the dataset has become available again.

12. The apparatus of claim 11 , wherein the processing device is further configured to:
detect that the eradication timer has expired;
determine, based on a retention policy, that the dataset can be retained beyond the expiration of the eradication timer; and
continue to delay the deletion of the dataset after the expiration of the eradication timer.

13. The apparatus of claim 11 , wherein the processing device is further configured to:
receive a request to restore the dataset prior to the expiration of the eradication timer; and
disregard the request to delete the dataset.

14. The apparatus of claim 11 , wherein the processing device is further configured to:
determine that the amount of time to delay the requested deletion of the dataset should be modified, wherein the determination is carried out in dependence upon on one or more eradication timer modification policies.

15. A non-transitory computer readable storage medium having instructions stored thereon that, when executed by a processing device, cause the processing device to:
determine to delay deletion of a dataset at a storage system by an amount of time corresponding to a time period between a requested deletion time for the dataset and a delayed deletion time for the dataset, wherein the delayed deletion time is modifiable after the requested deletion time; and
delay deletion of the dataset based on the amount of time.

16. The non-transitory computer readable storage medium of claim 15 , wherein the processing device is further configured to:
modify the amount of time based on an analysis of storage system capacity at a plurality of storage systems that includes the storage system.

17. The non-transitory computer readable storage medium of claim 16 , wherein the processing device is further configured to:
obtain the amount of time using an artificial intelligence model trained on capacity data for the plurality of storage systems.

18. The non-transitory computer readable storage medium of claim 15 , wherein the processing device is further configured to:
associate, with the dataset, an eradication timer that corresponds to the amount of time;
detect that the dataset has become unavailable; and
pause expiration of the eradication timer until the dataset has become available again.

19. The non-transitory computer readable storage medium of claim 18 , wherein the processing device is further configured to:
detect that the eradication timer has expired;
determine, based on a retention policy, that the dataset can be retained beyond the expiration of the eradication timer; and
continue to delay the deletion of the dataset after the expiration of the eradication timer.

20. The non-transitory computer readable storage medium of claim 18 , wherein the processing device is further configured to:
receive a request to restore the dataset prior to the expiration of the eradication timer; and
disregard the request to delete the dataset.

Assignees

• Pure Storage Inc

Inventors

• Sun Chenguang
• Habraken Jeroen Antonius Egidius
• Kan Chia-Hao
• Zhang Qingyu
• Grunwald David
• Touchette Larry
• Colgrove John

Classifications

• G06F16/23

  Updating · CPC title

• G06F2212/261

  Storage comprising a plurality of storage devices · CPC title

• G06F2212/163

  Server or database system · CPC title

• G06F2212/154

  Networked environment · CPC title

• G06F2212/152

  Virtualized environment, e.g. logically partitioned system · CPC title