STORAGE FOR ADAPTIVELY DETERMINING A PROCESSING TECHNIQUE WITH RESPECT TO A HOST REQUEST BASED ON PARTITION DATA AND OPERATING METHOD FOR THE STORAGE DEVICE

• US 20140059277A1
• Filed: 01/11/2012
• Published: 02/27/2014
• Est. Priority Date: 01/13/2011
• Status: Abandoned Application

• Current Assignee: Toshiba Corporation
• Original Assignee: Indilinx Co. Ltd. (ZCO Liquidating Corporation)
• Inventors: Chung, Hyun Mo
• Application Number:
  US13/978,276
• Publication Number:
  US 20140059277A1
• Time in Patent Office: Days
• US Class Current: 711/103
• CPC Class Codes: G06F 12/0246 in block erasable memory, e.g. flash memory
• CPC Class Codes: G06F 3/0604 Improving or facilitating administration, e.g. storage management
• CPC Class Codes: G06F 3/0664 at device level, e.g. emulation of a storage device or system
• CPC Class Codes: G06F 3/0676 Magnetic disk device

Abstract

Provided are: a storage device for adaptively determining a processing technique with respect to a host request based on partition data; and an operating method for the storage device. The storage device responds to receipt of a read or write request from a host by ascertaining a partition corresponding to the host request based on data about block addresses occupied by various partitions stored in the storage device. Also, the storage device adaptively determines a processing technique with respect to the host request based on predetermined attributes of the partition concerned.

Claims

1. A method of operating a storage device in a storage system comprising a host and the storage device provided with at least one disk, the method comprising:

storing information associated with an attribute for each of at least one partition of the at least one disk;

determining a partition to which a block address corresponding to a read or write request received from the host belongs among the at least one partition; and

adaptively determining a processing scheme of the read or write request based on an attribute of the partition to which the block address corresponding to the read or write request belongs.

2. The method of claim 1, further comprising:

pre-storing information associated with block addresses occupied by each of the at least one partition.

3. The method of claim 2, wherein the pre-storing of the information associated with the block addresses occupied by each of the at least one partition comprises, in a case in which a write request to a partition table is received, obtaining the information associated with the block addresses for each of the at least one partition based on data recorded corresponding to the write request to the partition table.

4. The method of claim 1, wherein the storing of the information associated with the attribute of each for the at least one partition of the at least one disk comprises receiving user settings associated with the attribute for each of the at least one partition from the host.

5. The method of claim 1, wherein the information associated with the attribute for each of the at least one partition comprises information associated with a weight value assigned to at least one of a data reliability, a processing speed, and a capacity for each of the at least one partition information.

6. The method of claim 1, wherein the adaptively determining of the processing scheme of the read or write request comprises determining whether to replicate and store data corresponding to the write request in different two locations of the partition to which the block address corresponding to the write request belongs, based on a weight value for a data reliability of the partition to which the block address corresponding to the write request belongs.

7. The method of claim 1, wherein the adaptively determining of the processing scheme of the read or write request comprises, in a case in which the storage device comprises an MLC flash memory, determining whether to operate the MLC flash memory in a single level cell (SLC) mode or an MLC mode, based on a weight value for a data reliability and a processing speed of the partition to which the block address corresponding to the read or write request belongs.

8. The method of claim 1, wherein the adaptively determining of the processing scheme of the read or write request comprises determining an address mapping scheme based on a weight value for sequential read and write and random read and write of the partition to which the block address corresponding to the read or write request belongs.

9. A non-transitory computer-readable medium comprising a program for instructing a computer to perform the method of claim 1.

10. A storage device in a storage system comprising a host and the storage device provided with at least one disk, the storage device comprising:

a storage module to store information associated with an attribute for each of at least one partition of the at least one disk; and

a control module to determine a partition to which a block address corresponding to a read or write request received from the host belongs among the at least one partition, and to adaptively determine a processing scheme of the read or write request based on an attribute of the partition to which the block address corresponding to the read or write request belongs.

11. The storage device of claim 10, wherein the storage module pre-stores information associated with block addresses occupied by each of the at least one partition.

12. The storage device of claim 11, wherein the storage module obtains, when a write request to a partition table is received, the information associated with the block addresses for each of the at least one partition based on data recorded corresponding to the write request to the partition table.

13. The storage device of claim 10, wherein the storage module receives user settings associated with the attribute for each of the at least one partition from the host.

14. The storage device of claim 10, wherein the information associated with the attribute for each of the at least one partition comprises information associated with a weight value assigned to at least one of a data reliability, a processing speed, and a capacity for each of the at least one partition information.

15. The storage device of claim 10, wherein the control module determines whether to replicate and store data corresponding to the write request in different two locations of the partition to which the block address corresponding to the write request belongs, based on a weight value for a data reliability of the partition to which the block address corresponding to the write request belongs.

16. The storage device of claim 10, wherein the control module determines, in a case in which the storage device comprises a multi level cell (MLC) flash memory, whether to operate the MLC flash memory in a single level cell (SLC) mode or an MLC mode, based on a weight value for a data reliability and a processing speed of the partition to which the block address corresponding to the read or write request belongs.

17. The storage device of claim 10, wherein the control module determines an address mapping scheme based on a weight value for sequential read and write and random read and write of the partition to which the block address corresponding to the read or write request belongs.