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Encryption mixed storage method and system

A technology of mixed storage and encrypted storage, which is applied in the field of communication to achieve the effect of improving data security

Pending Publication Date: 2018-07-10
深圳市杉岩数据技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since SSDs usually have an encryption function and can encrypt and decrypt data stored in the SSD, while HDDs do not have data encryption functions, a hybrid storage system based on SSDs and HDDs with encryption functions cannot protect the entire hybrid storage system. Provide data encryption function

Method used

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  • Encryption mixed storage method and system
  • Encryption mixed storage method and system

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Embodiment Construction

[0024] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0025] The present invention provides a method for encrypted hybrid storage, which includes the following steps:

[0026] After the system receives the request for writing IO data input by the upper-layer application, it writes the data into a storage device with encryption function and saves it in ciphertext;

[0027] When data needs to be migrated from an encrypted storage device to a normal storage device, the system reads the ciphertext of the corresponding data from the encrypted storage device and writes the ciphertext to the normal storage device by carrying the identifier when reading the data.

[0028] As an improvement of the technical solution, when the data needs to be migrated from the encrypted storage device to the common storage device, it includes that when the encrypted hybrid storage ado...

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PUM

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Abstract

The invention discloses an encryption mixed storage method. The method comprises the following steps of receiving a writing IO request input by an upper application through a system; if written data meets a cache requirement, writing the data in a storage device with an encryption function, and storing the data in a ciphertext form; and if the written data does not meet the cache requirement, encrypting the data and writing the ciphertext data in a general storage device. An encryption mixed storage system comprises a request receiving module and a data judgment module. According to the encryption mixed storage method and system provided by the invention, the mixed storage system with the encryption function is constructed in combination with an SSD and an HDD with encryption functions; data encryption and decryption are performed for the mixed storage system by utilizing the encryption function of the SSD, so that data stored in an HDD without the encryption function is also the ciphertext data, and the data security of the mixed storage system is improved; and the encryption mixed storage method and system is widely applied to the field of communication.

Description

technical field [0001] The invention relates to the field of communications, in particular to a method and system for encrypted hybrid storage. Background technique [0002] Flashcache has three modes: write-back, write-through and write-aroud, and the commonly used cache modes are write-back mode and write-through mode. [0003] As a new type of storage device, SSD (Soild-State-Drive, solid-state drive) is more and more used in various electronic information products, computers, servers and other equipment, and its application range is more and more extensive. The information security of its storage has also received more and more attention. Therefore, many storage manufacturers have developed encryption functions on the basis of SSDs to encrypt data stored on SSDs. [0004] Given that SSDs and disks have their own advantages in terms of price, capacity, and lifespan, more and more applications tend to use SSDs and disks to build hybrid storage systems with large capacity,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F21/79G06F21/60
CPCG06F21/602G06F21/606G06F21/79
Inventor 文刘飞花瑞
Owner 深圳市杉岩数据技术有限公司