Data processing device and data processing method

• US 9,354,985 B2
• Filed: 09/11/2014
• Issued: 05/31/2016
• Est. Priority Date: 12/02/2013
• Status: Active Grant

• Current Assignee: Huawei Cloud Computing Technologies Company Limited (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Jin, Tianfu, Ren, Nunu, Li, Mingjun
• Primary Examiner(s): DUNCAN, MARC M
• Application Number:
  US14/483,970
• Publication Number:
  US 20150154087A1
• Time in Patent Office: 628 Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/1456 Hardware arrangements for backup
• CPC Class Codes: G06F 11/1469 Backup restoration techniques
• CPC Class Codes: G06F 11/1471 involving logging of persistent data for recovery
• CPC Class Codes: G06F 11/1612 where the redundant component is persistent storage
• CPC Class Codes: G06F 2201/82 Solving problems relating to consistency
• CPC Class Codes: G06F 2201/85 Active fault masking without idle spares
• CPC Class Codes: G06F 3/0611 in relation to response time
• CPC Class Codes: G06F 3/0614 Improving the reliability of storage systems
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/0643 Management of files
• CPC Class Codes: G06F 3/065 Replication mechanisms
• CPC Class Codes: G06F 3/0683 Plurality of storage devices
• CPC Class Codes: Y02D 10/00 Energy efficient computing, e.g. low power processors, power management or thermal management

Abstract

Embodiments of the present invention provide a data processing device and a data processing method. In the data processing device and the data processing method provided by the embodiments of the present invention, first data in a memory is written into a first non-volatile storage unit in a log file form, and a log file of the first data written into the first non-volatile storage unit is written into a second non-volatile storage unit. Because a data write speed of the first non-volatile storage unit is higher than a data write speed of the second non-volatile storage unit, fast backup of the data in the memory can be achieved, and when the data in the memory is lost in an abnormal situation, security of the data in the memory can be ensured.

Claims

1. A data processing device, comprising:

a control unit;

a memory coupled to the control unit;

a first non-volatile storage unit coupled to the control unit; and

a second non-volatile storage unit coupled to the first non-volatile storage unit and the control unit,

wherein a data write speed of the first non-volatile storage unit is higher than a data write speed of the second non-volatile storage unit,

wherein the control unit is configured to write first data into the memory, write the first data into the first non-volatile storage unit in a log file form, and write, into the second non-volatile storage unit, a log file of the first data written into the first non-volatile storage unit,

wherein the control unit is further configured to write a second data into the memory, and write the second data into the first non-volatile storage unit in the log file form, and when writing the second data into the first non-volatile storage unit in the log file form, suspend writing the log file of the first data in the first non-volatile storage unit into the second non-volatile storage unit.

2. The data processing device according to claim 1, wherein the control unit comprises a data recovery unit configured to recover the first data, when the first data is lost from the memory using the log file of the first data in the second non-volatile storage unit, and recover the second data, when the second data is lost from the memory using a log file of the second data in the first non-volatile storage unit.

3. The data processing device according to claim 1, wherein the control unit is further configured to:

after the log file of the first data in the first non-volatile storage unit is written into the second non-volatile storage unit, instruct the first non-volatile storage unit to release a space occupied by the log file of the first data.

4. The data processing device according to claim 1, wherein the data write speed of the first non-volatile storage unit is the same as a data write speed of the memory.

5. A data processing device, wherein the data processing device comprises a control unit, a memory, a first non-volatile storage unit, and a second non-volatile storage unit;

a data write speed of the first non-volatile storage unit is higher than a data write speed of the second non-volatile storage unit; and

the control unit is configured to write first data into the memory, and write the first data into the first non-volatile storage unit in a log file form; and

the control unit is further configured to

acquire the first data from the memory, and convert the acquired first data to a log file and write the converted log file into the second non-volatile storage unit, and

acquire the first data from the memory and write the first data into the second non-volatile storage unit.

6. The data processing device according to claim 5, wherein the control unit comprises a memory read/write control unit and a persistency control unit, wherein

the memory read/write control unit is configured to write the first data into the memory, and write the first data into the first non-volatile storage unit in the log file form;

and

the persistency control unit is configured to implement one of the following;

(a) acquiring the first data from the memory, and converting the acquired first data to a log file and writing the converted log file into the second non-volatile storage unit, and

(b) acquiring the first data from the memory and writing the first data into the second non-volatile storage unit.

7. The data processing device according to claim 5, wherein the memory read/write control unit is further configured to write second data into the memory, and write the second data into the first non-volatile storage unit in the log file form.

8. The data processing device according to claim 5, wherein the control unit comprises a data recovery unit configured to recover the first data, when the first data is lost from the memory using the log file of the first data in the second non-volatile storage unit, and recover the second data, when the second data is lost from the memory using a log file of the second data in the first non-volatile storage unit.

9. The data processing device according to claim 5, wherein the data write speed of the first non-volatile storage unit is the same as a data write speed of the memory.

10. A data processing method, wherein the data processing method is applied in a data processing device and comprises:

receiving first data to be written into a memory of the data processing device;

writing the first data into the memory, and writing the first data into a first non-volatile storage unit in a log file form;

writing, into a second non-volatile storage unit, a log file of the first data written into the first non-volatile storage unit, wherein a data write speed of the first non-volatile storage unit is higher than a data write speed of the second non-volatile storage unit;

writing a second data into the memory, and writing the second data into the first non-volatile storage unit in the log file form; and

when the second data is written into the first non-volatile storage unit in the log file form, suspending writing the log file of the first data in the first non-volatile storage unit into the second non-volatile storage unit.

11. The data processing method according to claim 10, wherein:

when the first data in the memory is lost, recovering the first data lost from the memory using the log file of the first data in the second non-volatile storage unit; and

when the second data in the memory is lost, recovering the second data lost from the memory using a log file of the second data in the first non-volatile storage unit.

12. The data processing method according to claim 10, wherein after the writing, into a second non-volatile storage unit, a log file of the first data in the first non-volatile storage unit, instructing the first non-volatile storage unit to release a space occupied by the log file of the first data.

13. The data processing method according to claim 10, wherein the data write speed of the first non-volatile storage unit is the same as a data write speed of the memory.

14. A data processing method, wherein the data processing method is applied in a data processing device and comprises:

receiving first data to be written into a memory of the data processing device;

writing the first data into the memory, and writing the first data into a first non-volatile storage unit in a log file form; and

converting the first data in the memory to a log file and writing the converted log file into a second non-volatile storage unit, writing the first data in the memory into the second non-volatile storage unit, wherein a data write speed of the first non-volatile storage unit is higher than a data write speed of the second non-volatile storage unit.

15. The data processing method according to claim 14, further comprising:

writing second data into the memory, and writing the second data into the first non-volatile storage unit in the log file form.

16. The data processing method according to claim 15, wherein:

when the first data in the memory is lost, recovering the first data lost from the memory using the log file of the first data in the second non-volatile storage unit; and

when the second data in the memory is lost, recovering the second data lost from the memory using a log file of the second data in the first non-volatile storage unit.

17. The data processing method according to claim 14, wherein the recovering the first data lost from the memory using the first data in the second non-volatile storage unit comprises:

determining whether a conversion from the log file of the first data to the first data is completed;

when the conversion is not completed, recovering the first data in the memory using the converted first data and the log file of the first data that is not converted; and

when the conversion is completed, recovering the first data in the memory using the converted first data.

18. The data processing method according to claim 14, wherein the data write speed of the first non-volatile storage unit is the same as a data write speed of the memory.