There are many areas of technology in IT and computer science. Cloud storage is one of them. Cloud storage which was felt beneficial only for business purposes only, today has increased its scope to a common man also. The most relevant example is of smartphones. Today no one wants to lose their data. Physical memory devices can go corrupt anytime. So there are many companies offering service of data backup on cloud servers.
Cloud storage means the storage of the data in clouds. Wherein all the company’s data is stored and accessible from the multiple resources that comprise the clouds. So cloud storage is the technique of the data storage in which the digital data can be stored in the logical pools (Schulz, 2011). It can provide the benefits of the greater reliability and the accessibility, strong protection for data backup, the disaster recovery process and low storage cost.
Cloud storage is based on the highly virtualized infrastructure and is like the broader cloud computing in terms of the access interface, near the instant elasticity and scalability and the metered resources. Cloud storage is the made up of the many distributed resources, and it has a high fault tolerate the redundancy and the distribution of the data.
Cloud storage can be of many types: –
Personal Cloud Storage
Personal cloud storage is used to store the individual data in the clouds and provide the individual right to access the data from anywhere and it also provides the data syncing and the sharing capabilities from the multiple devices. Mostly, the personal cloud offers storage space for consumers to store their personal data. Through the Internet or mobile network, consumers can store and retrieve their personal data anywhere and anytime. An Example of the personal cloud storage is the Apple iClouds.
Public Cloud Storage
It is where enterprises and the storage service provider are separate and they don’t have any cloud resources stored in the company data centre. The storage service provider fully responsible for storing the company’s data (Coyne, Gopalakrishnan, & Sing, 2014).
Data is stored on the premises of the storage service provider and is accessed through network services. All the management tasks that are associated with storage, such as upgrading and replacing, are carried out by the storage service provider. You just pay for the amount of storage space that is consumed.
Typically, this storage capacity is somewhat inexpensive because of economies of scale, with different levels of performance and availability at different price points. For data stored in the public storage cloud, security and multitenancy are major areas of concern that need to be evaluated in accordance with business requirements. Storage resources can be scaled up or down to meet user requirements. In this model, the bulk of capital expenditures (CAPEX) to acquire storage capacity is shifted to operational expense because the storage cloud service provider purchases the resources and therefore incurs the CAPEX.
Private Cloud storage
This is that form of the arrangement in which a company and the cloud storage service provider are integrated into the company data centre. In this, the service provider has the infrastructure in the company data centre and fully managed by the data service provider.
Data is stored on the premises of the cloud storage service provider and accessed over the client’s intranet. The management can be done either by the client or can be outsourced to the service provider. Like the public storage cloud, different levels of performance and availability can be provided at different price points.
Unlike the public model, data is comparatively secure behind enterprise firewalls on dedicated hardware. Because the storage space is not shared by other organizations, security and multitenancy concerns are similar to traditional IT. In this model, the client might also save significantly with storage consolidation and virtualization.
Hybrid cloud storage
It is the combination of both public as well as the private cloud storage. In this, the critical data of the company are kept under the private cloud storage whereas the other data are kept under the public cloud storage.
For example: business-critical data (Human resources, Payroll etc.) can be stored in the dedicated local storage or local private cloud to provide security and control over the much important data and less useful data can be saved on the public cloud storage. In real life, such examples can be seen in case of a website hosting the downloadable files on large file sharing sites or Google Drive or DropBox etc. instead of saving on own server due to storage or security issue.
A community storage cloud limits access to a cloud infrastructure to organizations within a specific “community” that has common requirements and concerns (for example, mission, security requirements, policy, and compliance considerations).
The participating organizations realize the benefits of a storage cloud, such as shared infrastructure costs and a pay-as-you-go billing structure, with added levels of privacy, security, and policy compliance that are usually associated with a private cloud. The community cloud infrastructure can be delivered on-premises or at a third party’s data centre and can be managed by the participating organizations or a third party.
There are many benefits that are arises out of the cloud storage one of them is data is accessible from anywhere as long as have the internet access. Another benefit of the cloud storage is that it provides the protection from the data lost and it is the low-cost method to store the data in a more secure way.
The Company needs to pay for the storage they actually use that is based on the average consumption during the year but this does not mean the cloud storage is less expensive the only difference is that in this case company incur operating expense than the capital expense. There are some problems in the cloud storage also like if the internet connection is slow or not working, you might have the problem in accessing or sharing the file to other people.
Beal, V. (2016). Cloud storage. Retrieved January 07, 2016, from ://www.webopedia.com/TERM/C/cloud_storage.html
Coyne, L., Gopalakrishnan & Singh (2014). IBM Private, Public, and Hybrid Cloud Storage Solutions. USA: International Business Machines Corporation.
Schulz, G. (2011). Cloud and virtual data storage networking. Boca Raton: CRC Press.