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With the rapid development of cloud storage, the mass storage challenge is even more severe. The massive data of explosive growth is flooding their storage systems. At the same time, the security requirements for data in various industries are getting higher and higher. As an emerging technology concept, cloud storage is changing the way traditional storage is provided and used, and it has also had a profound impact on the storage industry. Cloud storage has replaced the ubiquitous hard drive and has become a high-budget project for IT storage spending.
Cloud storage is network storage implemented through cloud technology. The main features are safe, convenient, convenient, data is not easy to lose, available anytime, anywhere. Like baidu network disk, 360 cloud disk, etc. are all cloud storage. The advantages and disadvantages of cloud storage are getting more and more attention.
Cloud storage provides a storage service that stores local data over the network in an online storage space provided by a storage service provider (SSP). Users who need storage services no longer need to set up their own data centers, only need to apply for storage services to SSP, thus avoiding redundant construction of storage platforms and saving expensive investment in hardware and software infrastructure.
Cloud storage systems differ from traditional storage systems in the following ways:
From the perspective of functional requirements, cloud storage systems are oriented to multiple types of online storage services, while traditional storage systems are targeted at applications such as high-performance computing and transaction processing;
From the perspective of performance requirements, cloud storage services must first consider the security, reliability, efficiency and other indicators of data, and because of the large scale of users, wide service scope, complex and variable network environment, high-quality cloud storage services must be realized. Will face greater technical challenges;
From the perspective of data management, cloud storage systems not only provide traditional file access similar to POSIX, but also support massive data management and provide public service support functions to facilitate the maintenance of background data in cloud storage systems.
In addition, cloud storage has the following distinct advantages:
First, the maintenance is simple
Cloud storage provides a cluster management mode. Users only need to log in to an IP address of the cloud storage system to view all storage device status, corresponding disk status, and overall storage usage. The system also provides alarm notifications and log records for different abnormalities and faults in a timely manner, which greatly simplifies the administrator's maintenance and management of the storage system.
Second, the use of security
The cloud storage system adopts a distributed discrete storage strategy based on erasure code or multiple copies. The erasure code can allow the system to have more than one hard disk or even multiple storage device nodes, and will not cause data loss. In addition, the hard disk is recovered after the hard disk is damaged. The data is reconstructed simultaneously by multiple storage nodes in the free space, which is much faster than the traditional disk-based Raid, and the reconstruction speed can be less than 1 hour. Multiple copy mode stores multiple copies in different nodes in the system. Generally, 3 copies start, and any two copies of data are lost, and the data is still not lost.
Third, dynamic expansion, expansion is more convenient
In traditional storage, the business system directly deals with each storage device. Each time it is expanded, it must identify and mount new storage devices, and migrate the original data, resulting in long-term business interruption. The cloud storage adopts the storage virtualization technology. The service system only perceives the change of the overall capacity, does not care about the specific device, and the original data will be automatically reorganized and balanced in the new storage space after the expansion, and the service is not affected at all.
Fourth, data sharing is barrier-free
The traditional storage interface is closed. A storage system only connects a set of services. Each service such as video surveillance, intelligent analysis, and image detection must establish its own storage system. The efficiency of data sharing between each other is very low. The cloud storage provides a unified storage space and a namespace. Different service systems have consistent access to the storage system. These data can be directly read through a unified named path under the control of the authority, thereby improving the relationship between different service systems. The ability to share data information.
5. Automation and intelligence
Storage management can be automated and intelligent, all storage resources are integrated, and customers see a single storage space;
Sixth, improve efficiency
The storage efficiency is improved, the waste of the storage space is solved by the virtualization technology, the data can be automatically reallocated, the utilization of the storage space is improved, and the load balancing and fault redundancy functions are provided;
Seven, convenient and convenient
The USB flash drive is a commonly used portable storage tool, but it also brings us too much trouble. The small space leads to limited storage, and its portability also makes it too easy to lose. The U disk that stores important files is lost, which can be described as a heavy loss. People are looking for U disk, often because of its own value, but because of the importance of its content.
Cloud storage, like baidu network disk, 360 cloud disk, etc. solve this problem. With the cloud disk, data is never lost, and as long as there is a network, you can download the things stored on it. And no matter where you go, as long as there is a network, it is there, eliminating the hassle of carrying.
Eight, cross-platform use
Another big advantage of cloud storage is cross-platform use, real-time data synchronization, both computer version and hand-held version, which can be accessed through APP or through web pages, which greatly facilitates users.
9. Off-site management
Cloud computing enables off-site online storage without physical maintenance. This allows the organization to focus on other priorities, especially if the organization has a good relationship with a reliable supplier at a reasonable cost.
"In some cases, cloud providers can provide services such as backup, data protection, security and other projects, and management jobs," said StorageIO Group analyst Greg Schulz. "Organization can bring some physical on-site storage management tasks (including Capture, set up, and configure) to move to the cloud."
Ten, network connectivity
One of the biggest advantages of cloud computing is that it allows users to freely share and access data anytime, anywhere, on any device. Cloud computing connects modern businesses in ways that enterprise storage solutions can never do. With the right cloud storage, businesses can benefit from operational efficiency, business agility, time to market, competitive advantage, and cost reduction.
XI, backup speed is fast
Tests conducted by Mediatronics show that when cloud computing is supported by the right enterprise, the speed achieved can be comparable to that of data center on-site processing. By providing a 1Gbit transmission pipeline, Mediatronics found that companies can use 15 servers to simultaneously back up data, and use the Zetta.net service to transfer 75TB of data in the cloud during the nightly backup window. This is very similar to the effect of backing up to disk. Mediatronics recorded a data transfer rate of 975MB/sec for the Zetta.net incremental backup transfer record. This is faster than a 5,400-rpm mechanical hard drive (800MB/s) and is very close to the 7,200-rpm mechanical hard drive (1064MB/sec).
Twelve, rapid deployment
The public cloud bypasses the traditional approach of adding storage: evaluating storage requirements, requesting bids from vendors, selecting products, purchasing orders, waiting for delivery, assembling various storage assets to answer questions about how long it might take to access more storage. problem.
Thirteen, scalability
Scalability is another area of ​​public cloud rules. Various providers are doing a good job of providing a large amount of storage capacity. Nearly unlimited capacity and generally scalable performance is available in the public cloud.
Fourteen, storage technology keeps updated
Storage managers typically purchase storage arrays of flash or large tape libraries for storage. At the time they looked so cutting-edge, but did their high prices really achieve a promised return on investment? In many cases, the answer is no. The public cloud provides a way to avoid buying risks and quickly surpasses storage hardware. Users only pay for the capacity and performance they need, and vendors upgrade their environments to keep up with new technologies—competently from competitive pressures from other vendors. The public cloud provides updates and upgrades to storage technology as the user's storage components are upgraded in the background and their storage technology will not become obsolete in a few years.
Fifteen, reduce the upfront cost
Evaluating, purchasing, building, configuring, and managing storage can be an expensive business. In many cases, the organization's large storage capacity is idle. Companies with peak periods typically purchase enough storage and performance to meet peak demand, but do not require storage and IO equipment 95% of the time. Public clouds allow users to pay for content they use, along with reports to monitor their spending and storage usage, as well as input and output activities. At the same time, cloud storage can achieve scale effect and flexible expansion, reduce operating costs, and avoid waste of resources.
Overall, the advantages of cloud storage are very obvious. In the age of information technology, in order to keep up with the trend of the times, we must accept new technologies, master new technologies, and apply new technologies.