IP Library › Granted Patent US 12,242,425
Granted Patent B2
US 12,242,425 · App. 18/071,086 · Granted Mar 4, 2025

Similarity data for reduced data usage

Inventors: Ethan L. Miller (Santa Cruz, CA); Marco Sanvido (Belmont, CA)
Assignee: PURE STORAGE, INC.
G06F16/1748G06F18/24137G06F16/2246
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Quick Facts
Patent No.
US 12,242,425
App. No.
18/071,086
Granted
Mar 4, 2025
Kind
B2
Abstract

In one implementation, a method includes identifying a first content-dependent feature associated with a data sector. The method further includes determining a baseline data sector associated with the data sector. The method further includes determining, by a processing device, a content-dependent delta between the first content-dependent feature and a second content-dependent feature of the baseline data sector. The method further includes providing the content-dependent delta and an indicator to the baseline data sector for storage on a plurality of storage devices.

Claims (58)

1. A storage system comprising:

a plurality of storage devices; and

a storage system controller, operatively coupled to the plurality storage devices, the storage system controller configured to:

determine a second data segment associated with a first data segment based on a first content-dependent feature of the first data segment;

determine a content-dependent delta between the first content-dependent feature and a second content-dependent feature of the second data segment; and

utilize the content-dependent delta to reduce data stored for the first data segment, wherein the content dependent delta is stored in the storage system.

2. The method of claim 1 , wherein the storage system controller is further configured to:

provide the content-dependent delta and pointer to the second data segment for storage on the plurality of storage devices.

3. The storage system of claim 1 , wherein the storage system controller is further configured to:

assign a deduplicated data object associated with the first data segment to be the second data segment.

4. The storage system of claim 1 , wherein the second data segment is a data segment with a highest number of deduplicates.

5. The storage system of claim 1 , wherein the first data segment is a fixed size.

6. The storage system of claim 1 , wherein the first data segment is a variable size.

7. The storage system of claim 1 , wherein to determine the second data segment, the storage system controller is further configured to:

identify a snapshot data segment associated with the first data segment; and assign the snapshot data segment to be the second data segment.

8. The storage system of claim 1 , wherein the storage system controller is further configured to:

identify a plurality of data files stored on the plurality of embedded storage devices;

determine a content type of each of the plurality of data files; and

identify a first subset of the plurality of data files, wherein each data file of the first subset corresponds to a first content type.

9. The storage system of claim 8 , wherein the storage system controller is further configured to:

identify the first content-dependent feature of a first data file of the first subset of data files and a corresponding second content-dependent feature of the second data segment, wherein the first content-dependent feature and the second content-dependent feature are dependent upon a first content type; and

deduplicate the first data file based on the content-dependent delta.

10. The storage system of claim 8 , wherein the plurality of storage system controllers further configured to:

receive a request to locate a second data file from the plurality of embedded storage devices;

determine, based on metadata associated with the second file, that the second data file corresponds to a second content type;

search a second subset of data files, wherein each data file of the second subset corresponds to the second content type;

locate the second data file in the second subset; and

provide the located second data file.

11. A method, comprising:

determining a second data segment associated with a first data segment based on a first content-dependent feature of the first data segment;

determining a content-dependent delta between the first content-dependent feature and a second content-dependent feature of the second data segment; and

utilizing the content-dependent delta to reduce data stored for the first data segment, wherein the content dependent delta is stored in a storage system.

12. The method of claim 11 , further comprising:

providing the content-dependent delta and pointer to the second data segment for storage on the plurality of storage devices.

13. The method of claim 11 , further comprising:

assigning a deduplicated data object associated with the first data segment to be the second data segment.

14. The method of claim 11 , wherein the second data is a data segment with a highest number of deduplicates.

15. The method of claim 11 , wherein the first data segment is a fixed size.

16. The method of claim 11 , wherein to determining the second data segment comprises:

identifying a snapshot data segment associated with the first data segment; and

assigning the snapshot data segment to be the second data segment.

17. The method of claim 11 , further comprising:

identifying a plurality of data files stored on the plurality of embedded storage devices;

determining a content type of each of the plurality of data files; and

identifying a first subset of the plurality of data files, wherein each data file of the first subset corresponds to a first content type.

18. The method of claim 17 , further comprising:

identifying the first content-dependent feature of a first data file of the first subset of data files and a corresponding second content-dependent feature of the second data segment, wherein the first content-dependent feature and the second content-dependent feature are dependent upon a first content type; and

deduplicating the first data file based on the content-dependent delta.

19. The method of claim 17 , further comprising:

receiving a request to locate a second data file from the plurality of embedded storage devices;

determining, based on metadata associated with the second file, that the second data file corresponds to a second content type;

searching a second subset of data files, wherein each data file of the second subset corresponds to the second content type;

locating the second data file in the second subset; and

providing the located second data file.

20. A non-transitory computer readable storage medium comprising instructions which, when executed by a processing device, cause the processing device to:

determine a second data segment associated with a first data segment based on a first content-dependent feature of the first data segment;

determine a content-dependent delta between the first content-dependent feature and a second content-dependent feature of the second data segment; and

utilize the content-dependent delta to reduce data stored for the first data segment, wherein the content dependent delta is stored in a storage system.

Continuity (3)
Continuation 17031593 · Sep 24, 2020
Division 15725171 · Oct 4, 2017
Related Publication 20230088163A1 · Mar 23, 2023
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