As data continues to increase in an exponential manner, it is impossible to reduce the amount of data stored. Therefore, in order to improve system efficiency, most companies perform routine maintenance and upgrades on existing infrastructure, and apply dynamic architecture to existing infrastructure. To improve scalability.
Achieving these goals requires a flexible, easily scalable, manageable storage technology. For many companies, the private storage cloud is the solution. By loosely coupling the running applications and data storage nodes, the private storage cloud can provide flexibility, scalability, and manageability. It can support explosiveness while controlling costs. Data growth.
1. Overview of Private Storage Cloud Private storage cloud is a concept that evolves with the concept of a private cloud and refers to a storage cloud that is assumed to belong to an enterprise in a completely controlled enterprise environment. The private storage cloud is built behind the company's firewall, using hardware and software that the company owns or authorizes. All data storage of private storage cloud exists internally and is controlled by internal employees of the company. Management personnel realize access in different departments through centralized storage space or are used by different project teams within the company, regardless of the physical location of the user.
The private storage cloud is relative to public storage. Cloud providers provide three cloud deployment methods, as shown in Figure 1. In this way, the private storage cloud only provides the corresponding storage services and corresponding service quality to the limited users. Users who use storage services do not need to understand the specific details of the "cloud", as long as they know the corresponding interface and provide corresponding strategies. The rest of the work is done by the "cloud." Users only need to think of this storage cloud as a black box resource pool. Specifically, how to implement it, how to configure it, what technology to use, and what kind of platform to use, users do not need to care about. As a cloud, it provides many additional functions without affecting users, making the cloud an efficient, reliable, and secure storage pool.
2. Advantages of private storage cloud In the private cloud of the enterprise, the management personnel will get the two biggest benefits from: 1 significantly increased the current infrastructure utilization, reduced costs, and reduced the demand for future procurement: 2 managers can Support more users with less workload.
2.1 Data Controllability The private storage cloud allows users to actively control data. E.g. Determine who can access, where data is stored, and how it is transferred. For organizations dealing with private data (such as financial services, health services, and government agencies), it is impossible for third parties to have access to sensitive data. These organizations are more necessary to adopt private storage clouds.
2.2 Good scalability The public cloud cannot solve the security and privacy needs of data-sensitive organizations. On the contrary, private clouds provide these organizations with the means to transform their current data center investments. While maintaining control over private data, private clouds can provide higher scalability and a more user-friendly model. This brings flexibility to the expansion, maintenance, and upgrade of private storage cloud space, minimizing the impact of back-end changes.
2.3 Facilitating unified management When the amount of data is large or the management face involved is too wide, decentralized management cannot guarantee data consistency. Users manage their own storage, causing everyone to do repetitive work. This inefficiency results in waste of human resources and difficulty in effective control of information. Information leakage and security will become a prominent issue.
Unified management solves the above problems. The data is maintained under the same management interface. Users do not need to deal with the cumbersome work of data management by themselves, and the cost can be reduced while the security problem can be effectively solved.
2.4 Easy to Centralize Backup and Disaster Recovery Storage devices are not guaranteed to be reliable at all times. If the hardware is broken, you can buy it again, but the loss of data, especially the loss of critical data, is a loss that any company can't afford. Therefore, it is necessary to perform backup redundancy protection for data and implement disaster recovery at an acceptable cost at an appropriate time to ensure the availability of applications and services. Compared with decentralized storage, centralized data backup and application and business disaster recovery are easier to implement and manage, and they are more efficient.
2.5 Reducing Enterprise Costs Because it is centralized storage and easy to expand and upgrade, it can be combined with corresponding storage virtualization to flexibly configure capacity, improve large capacity, and provide efficient data access services. At the same time, virtual machine technology can be used to virtualize hardware devices and make full use of the benefits of hardware. Compared with the decentralized storage, the investment in equipment is reduced, and the energy consumption of hardware equipment is also reduced, achieving green energy saving.
3 Private Storage Cloud Security With the establishment of private storage clouds, new security issues have followed. First of all, internal access control needs attention because the private cloud is completely different from the cloud service provided by the public cloud in terms of access authority and control level, but it cannot avoid handling a large amount of internal access control. Although the private cloud has protection within the company's firewall and is protected from external attacks, it needs attention for internal illegal access and data requests. In addition, some companies sometimes need to connect the private cloud to the public cloud, which brings more problems.
3.1 Data transmission security The data transmission within the private cloud can not ignore the communication security. For the storage cloud internal management nodes and storage nodes, as well as communication between user clients and management nodes, storage nodes need to have a certain security mechanism to ensure, must Encrypt it. Some possible methods are to use the AP (application programming interface) provided by the private storage cloud software for communication mode design.
3.2 Isolate access to data When the private cloud is divided into smaller sub-clouds and allocated to different departments for use, this allocation may be dynamic, so the data must be isolated. Although the two departments share resources on the same storage node, each other's data must be inaccessible to each other. Strong isolation is a necessary prerequisite for the separation of private clouds, otherwise the so-called segmentation will no longer make sense.
When a private cloud is connected to a public cloud, all cloud storage data must be marked with a security level. Limit any data marked as sensitive to flow out of the enterprise private cloud. However, some data that are not very sensitive have low security level and can be stored and processed on the public cloud. Therefore, a strong isolation mechanism must be established between the private cloud and the public cloud. In the future, the mixed model of public and private clouds will be a direction of cloud computing.
3.3 Data Migration Security When data is migrated between cloud storage nodes, it is necessary to consider the identity authentication of the cloud storage node, the security during the transmission of data, and the legitimacy of the migration request. The data migration in the storage cloud does not need to be known to the user, and the data migration security between the public storage cloud and the private storage cloud must be paid attention to.
3.4 Object Identity Management Both the subject and the object of the storage cloud need to be authenticated and managed. This is the basis for access control of the private storage cloud. All objects need a unique and secure certificate that identifies themselves. It is obtained when the user and the storage object are registered, and provided when there is a request. The security level of the identity information of the object may be managed in combination with some methods such as LDAP (Lightweight Directory Access Protocol, Lightweight Directory Access Protocol).
3.5 Setting Up Access Control A private storage cloud that strictly enforces access control policies can be completely called private, rather than simply being a public cloud with more than one firewall. The need for access control is also due to the fact that the current choice of private storage clouds is mostly large companies with distinct security levels. Such companies will inevitably be involved in the setting of security level access control within the storage cloud in multiple resource accesses.
4 Conclusion Storage cloud is an emerging technology and an integral part of future data storage. The flexible storage cloud solution is designed to provide efficiency and affordability. Users can optimize storage capacity and quickly and easily access storage devices whenever and wherever they need it.
Private-storage-cloud technology is rapidly evolving, enabling continuous access to data with the required performance and unlimited storage. More and more companies are realizing that private-storage clouds are their right choice. Although public cloud services are proving their value and attracting new users, we may eventually see the advent of hybrid public/private cloud solutions that can meet the needs of companies and organizations that have security concerns about specific data.
Achieving these goals requires a flexible, easily scalable, manageable storage technology. For many companies, the private storage cloud is the solution. By loosely coupling the running applications and data storage nodes, the private storage cloud can provide flexibility, scalability, and manageability. It can support explosiveness while controlling costs. Data growth.
1. Overview of Private Storage Cloud Private storage cloud is a concept that evolves with the concept of a private cloud and refers to a storage cloud that is assumed to belong to an enterprise in a completely controlled enterprise environment. The private storage cloud is built behind the company's firewall, using hardware and software that the company owns or authorizes. All data storage of private storage cloud exists internally and is controlled by internal employees of the company. Management personnel realize access in different departments through centralized storage space or are used by different project teams within the company, regardless of the physical location of the user.
The private storage cloud is relative to public storage. Cloud providers provide three cloud deployment methods, as shown in Figure 1. In this way, the private storage cloud only provides the corresponding storage services and corresponding service quality to the limited users. Users who use storage services do not need to understand the specific details of the "cloud", as long as they know the corresponding interface and provide corresponding strategies. The rest of the work is done by the "cloud." Users only need to think of this storage cloud as a black box resource pool. Specifically, how to implement it, how to configure it, what technology to use, and what kind of platform to use, users do not need to care about. As a cloud, it provides many additional functions without affecting users, making the cloud an efficient, reliable, and secure storage pool.
2. Advantages of private storage cloud In the private cloud of the enterprise, the management personnel will get the two biggest benefits from: 1 significantly increased the current infrastructure utilization, reduced costs, and reduced the demand for future procurement: 2 managers can Support more users with less workload.
2.1 Data Controllability The private storage cloud allows users to actively control data. E.g. Determine who can access, where data is stored, and how it is transferred. For organizations dealing with private data (such as financial services, health services, and government agencies), it is impossible for third parties to have access to sensitive data. These organizations are more necessary to adopt private storage clouds.
2.2 Good scalability The public cloud cannot solve the security and privacy needs of data-sensitive organizations. On the contrary, private clouds provide these organizations with the means to transform their current data center investments. While maintaining control over private data, private clouds can provide higher scalability and a more user-friendly model. This brings flexibility to the expansion, maintenance, and upgrade of private storage cloud space, minimizing the impact of back-end changes.
2.3 Facilitating unified management When the amount of data is large or the management face involved is too wide, decentralized management cannot guarantee data consistency. Users manage their own storage, causing everyone to do repetitive work. This inefficiency results in waste of human resources and difficulty in effective control of information. Information leakage and security will become a prominent issue.
Unified management solves the above problems. The data is maintained under the same management interface. Users do not need to deal with the cumbersome work of data management by themselves, and the cost can be reduced while the security problem can be effectively solved.
2.4 Easy to Centralize Backup and Disaster Recovery Storage devices are not guaranteed to be reliable at all times. If the hardware is broken, you can buy it again, but the loss of data, especially the loss of critical data, is a loss that any company can't afford. Therefore, it is necessary to perform backup redundancy protection for data and implement disaster recovery at an acceptable cost at an appropriate time to ensure the availability of applications and services. Compared with decentralized storage, centralized data backup and application and business disaster recovery are easier to implement and manage, and they are more efficient.
2.5 Reducing Enterprise Costs Because it is centralized storage and easy to expand and upgrade, it can be combined with corresponding storage virtualization to flexibly configure capacity, improve large capacity, and provide efficient data access services. At the same time, virtual machine technology can be used to virtualize hardware devices and make full use of the benefits of hardware. Compared with the decentralized storage, the investment in equipment is reduced, and the energy consumption of hardware equipment is also reduced, achieving green energy saving.
3 Private Storage Cloud Security With the establishment of private storage clouds, new security issues have followed. First of all, internal access control needs attention because the private cloud is completely different from the cloud service provided by the public cloud in terms of access authority and control level, but it cannot avoid handling a large amount of internal access control. Although the private cloud has protection within the company's firewall and is protected from external attacks, it needs attention for internal illegal access and data requests. In addition, some companies sometimes need to connect the private cloud to the public cloud, which brings more problems.
3.1 Data transmission security The data transmission within the private cloud can not ignore the communication security. For the storage cloud internal management nodes and storage nodes, as well as communication between user clients and management nodes, storage nodes need to have a certain security mechanism to ensure, must Encrypt it. Some possible methods are to use the AP (application programming interface) provided by the private storage cloud software for communication mode design.
3.2 Isolate access to data When the private cloud is divided into smaller sub-clouds and allocated to different departments for use, this allocation may be dynamic, so the data must be isolated. Although the two departments share resources on the same storage node, each other's data must be inaccessible to each other. Strong isolation is a necessary prerequisite for the separation of private clouds, otherwise the so-called segmentation will no longer make sense.
When a private cloud is connected to a public cloud, all cloud storage data must be marked with a security level. Limit any data marked as sensitive to flow out of the enterprise private cloud. However, some data that are not very sensitive have low security level and can be stored and processed on the public cloud. Therefore, a strong isolation mechanism must be established between the private cloud and the public cloud. In the future, the mixed model of public and private clouds will be a direction of cloud computing.
3.3 Data Migration Security When data is migrated between cloud storage nodes, it is necessary to consider the identity authentication of the cloud storage node, the security during the transmission of data, and the legitimacy of the migration request. The data migration in the storage cloud does not need to be known to the user, and the data migration security between the public storage cloud and the private storage cloud must be paid attention to.
3.4 Object Identity Management Both the subject and the object of the storage cloud need to be authenticated and managed. This is the basis for access control of the private storage cloud. All objects need a unique and secure certificate that identifies themselves. It is obtained when the user and the storage object are registered, and provided when there is a request. The security level of the identity information of the object may be managed in combination with some methods such as LDAP (Lightweight Directory Access Protocol, Lightweight Directory Access Protocol).
3.5 Setting Up Access Control A private storage cloud that strictly enforces access control policies can be completely called private, rather than simply being a public cloud with more than one firewall. The need for access control is also due to the fact that the current choice of private storage clouds is mostly large companies with distinct security levels. Such companies will inevitably be involved in the setting of security level access control within the storage cloud in multiple resource accesses.
4 Conclusion Storage cloud is an emerging technology and an integral part of future data storage. The flexible storage cloud solution is designed to provide efficiency and affordability. Users can optimize storage capacity and quickly and easily access storage devices whenever and wherever they need it.
Private-storage-cloud technology is rapidly evolving, enabling continuous access to data with the required performance and unlimited storage. More and more companies are realizing that private-storage clouds are their right choice. Although public cloud services are proving their value and attracting new users, we may eventually see the advent of hybrid public/private cloud solutions that can meet the needs of companies and organizations that have security concerns about specific data.
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