Shulou(Shulou.com)06/03 Report--

One of the major advantages of cloud storage is its flexibility, in fact, it is more accurate to say that the security of the initial cloud storage product is an additional attribute of the product. Enterprises initially choose cloud computing not for the "security" of cloud computing, but because cloud computing is convenient, convenient, cost-effective and flexible. Hailed as the beginning of the fourth information revolution, cloud computing makes full use of the Internet and integrates perfectly with mobile Internet devices, providing users with almost omnipotent super services!

Cloud data based on the background of cloud computing has the following remarkable characteristics:

1. Cloud storage service type

two。 Perfectly compatible with MySQL protocol, high performance, high reliability, easy to use, convenient MySQL cluster service

3. With backup, expansion, migration and other functions, users can easily manage the database

4. A high degree of virtualization includes server, storage, network, application, etc.

5. More intelligent, automated, convenient, large-scale and standardized

One of the major advantages of cloud storage is its flexibility, in fact, it is more accurate to say that the security of the initial cloud storage product is an additional attribute of the product. Enterprises initially choose cloud computing not for the "security" of cloud computing, but because cloud computing is convenient, convenient, cost-effective and flexible.

Cloud storage in the era of big data:

In big data's era, resources and data originally limited to private networks were linked because of the network, and these resources and data were placed on the public network shared by public cloud service providers.

Through the cloud storage model, on the one hand, these data create unlimited value, on the other hand, they are becoming the "target" of super *, network illegal organizations and APT***. The recent incident of virus extortion has given us a wake-up call!

Once a cloud computing platform leaks users' data privacy, or a large amount of data is lost due to equipment failure in the process of cloud storage, or the data is arbitrarily tampered with by other users in the process of transmission, the adverse impact caused by this consequence is that it is difficult to measure the problem of data security and has increasingly become the focus that can not be ignored, the cloud storage field must also face this problem head on and directly!

So, how does cloud computing technology ensure data security?

1. Relativity of security:

There is no absolute security, security is always relative!

According to the current situation, based on good, stable, up to a certain level of security of "software technology, hardware technology, computer room environment" and other factors, in this case cloud storage will be much safer than local storage! Rely on the combination of software and hardware to design: module-level protection: modular, redundant design, hot-swappable support. Power module, control module and so on are redundant hard disk-level protection: intra-node disk-level Raid, various levels of Raid protection data-level protection: multiple copies of data objects between nodes. In addition to the usual RAID technology, in order to solve the data loss caused by double disk effectiveness and other failures, cloud storage writes copies of multiple objects to other storage nodes respectively. When one node fails, the data on other nodes continues to provide services. At the same time, through the data copies in other nodes, quickly reply to the lost data system-level protection on the failed node: network link end-to-end redundancy. All enclosures are distributed, even in different physical locations.

two。 Starting from the three dimensions of data: availability, integrity and privacy

Data availability:

Data availability refers to the elements that the data is not unusable due to problems such as *, physical equipment failure, and so on.

If we are worried about the loss of important data due to computer viruses, power failures and other problems, we often take data backup measures to prevent it.

In cloud computing, the common measures to ensure data availability are similar, we call redundant backup, a means to improve the reliability of the system by using the parallel model of the system.

Data integrity:

Data integrity refers to the elements that ensure that the data is not tampered with by unauthorized users or can be quickly discovered by the system after tampering in the process of data transmission and storage.

Digital signature is a common method to ensure data integrity. Digital signature protects the transmission of data in the cloud and ensures that the data has not been modified or changed in the process of sending. At the same time, it can also confirm the identity of the sender and receiver of data transmission.

Data privacy:

Data privacy is another very important dimension, which refers to the elements that protect users' personal data and their information in every link of mass data transmission, storage and processing.

Cloud computing applications mainly protect data privacy through three methods: shared key, biological characteristics and authentication based on public key encryption algorithm.

In addition, data-level object de-identification, vulnerability protection, virtual machine scanning, data isolation, hybrid cloud technology are also often used to ensure data privacy and security.

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