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Data manipulation methods and system, and devices

A data manipulation and data technology, applied in the computer field, can solve problems such as low efficiency

Active Publication Date: 2015-11-25
HUAWEI TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a data operation method, device and system to solve the problem in the prior art that the CPU performs data operations on block devices with low efficiency

Method used

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  • Data manipulation methods and system, and devices
  • Data manipulation methods and system, and devices
  • Data manipulation methods and system, and devices

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Embodiment Construction

[0073] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0074] In all embodiments of this solution, the data operation includes a data write operation and a data read operation, wherein the read instruction may be a load instruction, and the write instruction may be a store instruction.

[0075] The embodiment of the present invention provides a data operation method, the data operation is a data read operation, such as figure 1 As shown, the method includes:

[0076] S101. The storage control device receives a re...

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Abstract

Provided are a data operation method, device and system, relating to the field of computers, solving the problem of low efficiency of a CPU in performing a data operation on a block device in prior art. The method includes: receiving an operation command sent by the CPU; when the operation command is a read command, reading a first data block in the block device, and returning data to be read in the first data block to the CPU; when the operation command is a write command, writing data to be written indicated by the write command into a buffer, and writing a second data block including the data to be written into the block device. The method is applied to operate data in a block device.

Description

technical field [0001] The present invention relates to the computer field, in particular to a data operation method, device and system. Background technique [0002] The UAS (Unified Accessing Storage, integrated storage) system includes a variety of storage devices with different characteristics, such as DRAM (Dynamic Random Access Memory, dynamic random access memory), NVM (Non-Volatile Memory, non-volatile memory), Flash-basedSSD (Flash-basedSolidStateDisk , Flash-based solid-state drive) and HDD (HardDisk, disk). Among them, DRAM and NVM are character devices, which support reading and writing data by byte / character, and are generally used as memory; Flash-basedSSD and HDD are block devices, and data reading and writing of such devices can only be performed at block granularity , generally used as external memory, the block device does not support byte-based addressing, usually a block granularity is 512B (Byte, byte). [0003] In the prior art, for data access with s...

Claims

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Application Information

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IPC IPC(8): G06F3/06G06F12/08
CPCG06F3/0673G06F12/0871G06F12/121G06F3/061G06F3/064G06F3/0656G06F12/0868G06F2212/1016G06F2212/312G06F2212/461G06F3/0659G06F3/0676G06F12/00
Inventor 夏飞陈明宇蒋德钧熊劲
Owner HUAWEI TECH CO LTD