Systems and methods for transformation of logical data objects for storage

• US 9,367,555 B2
• Filed: 04/13/2012
• Issued: 06/14/2016
• Est. Priority Date: 05/31/2006
• Status: Expired due to Fees

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Koifman, Chaim, Kedem, Nadav, Zohar, Avi
• Primary Examiner(s): Perveen, Rehana
• Assistant Examiner(s): Wong, Huen
• Application Number:
  US13/446,667
• Publication Number:
  US 20120197917A1
• Time in Patent Office: 1,523 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 12/023 Free address space management
• CPC Class Codes: G06F 12/1408 by using cryptography for digital transmission H04L9/00
• CPC Class Codes: G06F 16/13 File access structures, e.g. distributed indices arrangements of input from, or output to, record carriers G06F3/06
• CPC Class Codes: G06F 16/1727 Details of free space management performed by the file system saving storage space on storage systems G06F3/0608; management of blocks in storage devices G06F3/064
• CPC Class Codes: G06F 16/1744 using compression, e.g. sparse files
• CPC Class Codes: G06F 16/2365 Ensuring data consistency and integrity
• CPC Class Codes: G06F 21/62 Protecting access to data via a platform, e.g. using keys or access control rules
• CPC Class Codes: G06F 21/6209 to a single file or object, e.g. in a secure envelope, encrypted and accessed using a key, or with access control rules appended to the object itself
• CPC Class Codes: G06F 21/78 to assure secure storage of data address-based protection against unauthorised use of memory G06F12/14; record carriers for use with machines and with at least a part designed to carry digital markings G06K19/00
• CPC Class Codes: G06F 2212/1044 Space efficiency improvement
• CPC Class Codes: G06F 2212/152 Virtualized environment, e.g. logically partitioned system
• CPC Class Codes: G06F 2212/401 Compressed data
• CPC Class Codes: G06F 2212/402 Encrypted data
• CPC Class Codes: G06F 3/0604 Improving or facilitating administration, e.g. storage management
• CPC Class Codes: G06F 3/0605 by facilitating the interaction with a user or administrator
• CPC Class Codes: G06F 3/0608 Saving storage space on storage systems
• CPC Class Codes: G06F 3/0623 in relation to content
• CPC Class Codes: G06F 3/0631 by allocating resources to storage systems
• CPC Class Codes: G06F 3/0638 Organizing or formatting or addressing of data
• CPC Class Codes: G06F 3/0659 Command handling arrangements, e.g. command buffers, queues, command scheduling
• CPC Class Codes: G06F 3/0661 : Format or protocol conversion arrangements
• CPC Class Codes: G06F 3/0665 : at area level, e.g. provisioning of virtual or logical volumes
• CPC Class Codes: G06F 3/067 : Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06F 3/0673 : Single storage device
• CPC Class Codes: H03M 7/30 : Compression speech analysis-synthesis for redundancy reduction G10L19/00; for image communication H04N; Expansion; Suppression of unnecessary data, e.g. redundancy reduction

Abstract

Systems and methods for transforming a logical data object for storage in a storage device operable with at least one storage protocol, creating, reading, writing, optimization and restoring thereof. Transforming the logical data object comprises creating in the storage device a transformed logical data object comprising one or more allocated storage sections with a predefined size; transforming one or more sequentially obtained chunks of obtained data corresponding to the transforming logical data object; and sequentially storing the processed data chunks into said storage sections in accordance with a receive order of said chunks, wherein said storage sections serve as atomic elements of transformation/de-transformation operations during input/output transactions on the logical data object. The processing may comprise two or more data transformation techniques coordinated in time, concurrently executing autonomous sets of instructions, and provided in a manner preserving the sequence of processing and storing the processed data chunks.

Claims

1. A method for optimization of a transformed logical data object including a plurality of storage sections storing transformed data, said method comprising:

receiving, by a processor, a request to store first data in the transformed logical data object;

searching the plurality of storage sections to identify a storage section comprising a mixture of outdated transformed data and live transformed data, and including greater than a predetermined percentage of the outdated transformed data, wherein the outdated transformed data includes a first timestamp prior to a predefined time and the live transformed data includes a second timestamp subsequent to the predefined time;

de-transforming all of the outdated transformed data and all of the live transformed data in the identified storage section to generate second data comprising both live data and outdated data;

identifying the live data and the outdated data in the second data;

extracting the live data from the second data;

deleting the outdated data in the identified storage section;

releasing the storage section subsequent to extracting the live data and deleting the outdated data, wherein physical space corresponding to the identified storage section is available for re-allocation to a new storage section subsequent to releasing the identified storage section;

re-transforming the live data; and

storing the re-transformed live data in the new storage section, wherein the re-transformed live data keeps the second timestamp subsequent to re-transformation and storage of the re-transformed live data.

2. The method of claim 1, further comprising:

receiving new data for storage in the transformed logical data object;

transforming the new data to generate new transformed data; and

storing the new transformed data in a space in the new storage section.

3. The method of claim 2, further comprising sequentially storing the new transformed data in the new storage section in an order the new data was received.

4. The method of claim 1, wherein de-transforming the outdated transformed data comprises de-transforming the outdated transformed data in an order the data was received for storage.

5. The method of claim 4, wherein releasing the outdated data comprises releasing the outdated data in the order the outdated data was de-transformed.

6. The method of claim 1, wherein de-transforming the outdated transformed data comprises de-transforming the outdated transformed data in an order the outdated transformed data was transformed and stored in the identified storage section.

7. The method of claim 6, wherein releasing the outdated data comprises releasing the outdated data in the order the outdated data was transformed and stored in the identified storage section.

8. A system for optimization of a transformed logical data object including a plurality of storage sections storing transformed data, said method comprising:

a processor; and

a storage device coupled to said processor, wherein the storage device is configured to store computer code that, when executed by the processor, causes the processor to;

receive a request to store first data in the transformed logical data object,

searching the plurality of storage sections to identify a storage section comprising a mixture of outdated transformed data and live transformed data, and including greater than a predetermined percentage of the outdated transformed data, wherein the outdated transformed data includes a first timestamp prior to a predefined time and the live transformed data includes a second timestamp subsequent to the predefined time,

de-transform all the outdated transformed data and all of the live transformed data in the identified storage section to generate second data, the second data comprising both live data and outdated data,

identify the live data and the outdated data in the second data,

extract the live data from the second data,

delete the outdated data in the identified storage section,

release the identified storage section subsequent to extracting the live data and deleting the outdated data, wherein physical space corresponding to the identified storage section is available for re-allocation to a new storage section subsequent to releasing the identified storage section,

re-transform the live data; and

store the re-transformed live data in the new storage section, wherein the re-transformed live data keeps the second timestamp subsequent to re-transformation and storage of the re-transformed live data.

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

receive new data for storage in the transformed logical data object;

transform the new data to generate new transformed data, and

store the new transformed data in a space in the new storage section.

10. The system of claim 9, wherein the processor is further configured to sequentially store the new transformed data in the new storage section in an order the new data was received.

11. The system of claim 8, wherein, when de-transforming the outdated transformed data, the processor is configured to de-transform the outdated transformed data in an order the data was received for storage.

12. The system of claim 11, wherein, when releasing the outdated data, the processor is configured to release the outdated data in the order the outdated data was de-transformed.

13. The system of claim 8, wherein, when de-transforming the outdated transformed data, the processor is configured to de-transform the outdated transformed data in an order the outdated transformed data was transformed and stored in the identified storage section.

14. The system of claim 13, wherein, when releasing the outdated data, the processor is configured to release the outdated data in the order the outdated data was transformed and stored in the identified storage section.

15. A computer program product comprising a hardware processor configured for:

receiving a request to store first data in the transformed logical data object;

searching the plurality of storage sections to identify a storage section comprising a mixture of outdated transformed data and live transformed data, and including greater than a predetermined percentage of outdated transformed data, wherein the outdated transformed data includes a first timestamp prior to a predefined time and the live transformed data includes a second timestamp subsequent to the predefined time;

de-transforming all of the outdated transformed data and all of the live transformed data in an identified storage section to generate second data comprising both live data and outdated data;

identifying the live data and the outdated data in the second data;

extracting the live data from the second data;

deleting the outdated data in the identified storage section;

releasing the identified storage section subsequent to extracting the live data and deleting the outdated data, wherein physical space corresponding to the identified storage section is available for re-allocation to a new storage section subsequent to releasing the identified storage section;

re-transforming the live data; and

storing the re-transformed live data in a new storage section, wherein the re-transformed live data keeps the second timestamp subsequent to re-transformation and storage of the re-transformed live data.

16. The computer program product of claim 15, wherein the hardware processor is further configured for:

receiving new data for storage in the transformed logical data object;

transforming the new data to generate new transformed data; and

storing the new transformed data in a space in the new storage section vacated by the released outdated data.

17. The computer program product of claim 16, wherein the hardware processor is further configured for sequentially storing the new transformed data in the new storage section in an order the new data was received.

18. The computer program product of claim 15, wherein, when de-transforming the outdated transformed data, the hardware processor is configured for de-transforming the outdated transformed data in an order the data was received for storage.

19. The computer program product of claim 18, wherein, when releasing the outdated data, the hardware processor is configured for releasing the outdated data in the order the outdated data was de-transformed.

20. The computer program product of claim 15, wherein, when de-transforming the outdated transformed data, the hardware processor is configured for de-transforming the outdated transformed data in an order the outdated transformed data was transformed and stored in the identified storage section.

21. The computer program product of claim 20, wherein, when releasing the outdated data, the hardware processor is configured for releasing the outdated data in the order the outdated data was transformed and stored in the identified storage section.