Granted Patent B2

US 7,793,066 · App. 12/364,451 · Granted Sep 7, 2010

Abstract

Claims (42)

1. A data storage system for storing data comprising;

a data interface that communicates with a data storage medium,

wherein the data interface is configured to place data into a logical data capsule having a defined size and structure,

wherein the data placed into the logical data capsule can occupy less than the defined size of the logical data capsule,

wherein the logical data capsule is moved as a whole between the data storage medium and the data interface,

wherein when any data in the logical data capsule is read or modified, all of the data in the logical data capsule is read or modified as a whole,

wherein the data interface is configured to assign capsule numbers to all logical data capsules in the data storage medium, and

wherein the data interface determines the access rate associated with the logical data capsule based on the capsule number assigned to the logical data capsule.

2. The data storage system of claim 1 , wherein the data interface is configured to assign capsule numbers to all logical data capsules in the data storage medium, and wherein all logical data capsules in the data storage medium have equal size.

3. The data storage system of claim 1 , wherein the data storage medium comprises:

a first data storage medium having a first data access time;

a second data storage medium have a second data access time different from the first data access time; and

a third data storage medium having a third data access time different from the first and second data access times.

4. The data storage medium of claim 1 wherein the data interface maintains a table to track the assignment of capsule numbers.

5. A data storage system for storing data comprising:

a data storage medium including (i) a first data storage medium having a first data access time; (ii) a second data storage medium have a second data access time different from the first data access time; and (iii) a third data storage medium having a third data access time different from the first and second data access times; and

a data interface that communicates with the data storage medium,

wherein the data interface is configured to place data into a logical data capsule having a defined size and structure,

wherein the data placed into the logical data capsule can occupy less than the defined size of the logical data capsule,

wherein the logical data capsule is moved as a whole between the data storage medium and the data interface,

wherein when any data in the logical data capsule is read or modified, all of the data in the logical data capsule is read or modified as a whole, and

wherein the data interface is configured to assign a capsule number to the logical data capsule within a first range of capsule numbers corresponding to the first data access time, a second range of capsule numbers corresponding to the second data access time, or a third range of capsule numbers corresponding to the third data access time.

6. The data storage system of claim 5 , wherein the data interface is configured to reassign the capsule number of the logical data capsule to move the logical data capsule among the first, second and third data storage media.

7. The data storage system of claim 6 , wherein the capsule number of the logical data capsule is reassigned based on usage of the data in the logical data capsule.

8. The data storage system of claim 6 , wherein the capsule number of the logical data capsule is reassigned based on an age associated with the data in the logical data capsule.

9. A data storage system for storing data comprising;

a data storage medium including (i) a first data storage medium having a first data access time; and (ii) a second data storage medium have a second data access time different from the first data access time; and

a data interface that communicates with the data storage medium,

wherein the data interface is configured to place data into a logical data capsule having a defined size and structure,

wherein the logical data capsule is moved as a whole between the data storage medium and the data interface, and

wherein the data interface is configured to assign a capsule number to the logical data capsule within a first range of capsule numbers corresponding to the first data access time, or within a second range of capsule numbers corresponding to the second data access time.

10. The data storage system of claim 9 , wherein the data storage medium is a disk.

11. The data storage system of claim 9 , wherein the data storage medium is a disk redundant array of independent/inexpensive (RAID).

12. The data storage system of claim 9 , wherein the data storage medium is an optical disk.

13. The data storage system of claim 9 , wherein the data interface is configured to assign capsule numbers to all logical data capsules in the data storage medium, and wherein all logical data capsules in the data storage medium have equal size.

14. The data storage medium of claim 13 wherein the data interface determines the access rate associated with the logical data capsules based on the capsule number assigned to the logical data capsules.

15. The data storage medium of claim 9 wherein the data interface maintains a table to track the assignment of capsule numbers.

16. The data storage medium of claim 9 wherein the data interface is configured to compress data to be placed into the logical data capsules.

17. The data storage medium of claim 9 wherein the data interface is configured to encrypt data to be placed into the logical data capsules.

18. The data storage system of claim 9 , wherein the data interface is configured to reassign the capsule number of the logical data capsule to move the logical data capsule between the first data storage medium and the second data storage medium.

19. The data storage system of claim 18 , wherein the capsule number of the logical data capsule is reassigned based on usage of the data in the logical data capsule.

20. The data storage system of claim 18 , wherein the capsule number of the logical data capsule is reassigned based on an age associated with the data in the logical data capsule.

Assignments (12)