With the wide application of the network, different levels of laboratory data management platform facing a huge, scattered locations, poor security, poor stability, security and poor. The use of the desktop cloud management architecture can improve and strengthen the security and reliability of laboratory information management platform. This paper analyzes the problems of traditional laboratory decentralized management structure and the advantages of centralized management architecture, introduced the architecture and technical features of the cloud management platform in the laboratory building of the university, explained the advantages of using cloud management platform for desktop-based applied Research laboratory of university of virtualization technology to provide reference.
With the new technology big data, cloud computing and other widely used in university laboratories, information technology growing number of devices, laboratory class is getting smaller, scale is also growing, and we need to introduce an efficient grasp , simple management platform, thus the desktop cloud application management platform for us. Desktop cloud management platform will not only improve the scientific level of laboratory resources management, but also innovative experimental teaching activities to enhance the teaching level. This platform can be centrally managed, centralized storage, distributed computing establish a secure, manageable management of the environment, meet the teaching, research and office needs, to achieve on-demand delivery desktop environment, on Demand.
- The existence of a decentralized management structure problems
1.1 laboratory low efficiency
System or software failures of traditional laboratory desktop occur frequently, and deal with the failure of over-reliance on artificial, resulting in management staff all day as "fireman" Like running in various laboratories, but the recovery period is long, low efficiency, maintenance consuming workload, but the recovery process affect the normal operation of desktop devices. In addition the operating system and application software updates to patch vulnerabilities, to be in the case of desktop downtime, maintenance on each desktop individually owned, update patch, upgrade the system, upgrade the software, set the parameters, seriously affected the normal teaching and research order.
1.2 laboratory software maintenance costs high
Currently, to meet the different needs of teachers and students teaching and research, laboratories need to introduce a large number of simple, powerful software, and the high cost of the software and ongoing maintenance costs will become an important factor in rising costs of college system maintenance. At present charge each software product installed in accordance with the basic points (each device a license) to calculate the price. With the deepening of laboratory applications to carry out, the number of users required software will be gradually expanded, the total cost of investment institutions will follow a substantial increase.
1.3 laboratory desktop application control difficult
University Laboratory is a free and open teaching and research sites, teachers and students can be self-installed software applications, but not enough because the individual student or professional installation operator error, software or copy files to install their own malicious there may be incidental destructive programs, which can easily lead to instability in the entire laboratory information system or directly lead to paralysis of the information system, and even cause more serious leakage and loss of core data on the server. Potentially increasing the difficulty of control staff of the laboratory desktop applications.
1.4 laboratory data security risk
Traditional laboratory decentralized desktop management is a very loose management, security vulnerability, mainly Windows group policy or file encryption software for protection, and the Windows Group Policy is the application-level control, limited data port capacity constraints, application-level protection means must rely on windows operating system, and can not completely solve the safety problems. If a malicious user to use a third-party media U disk, CD-ROM or removable hard disk to start the computer, bypassing all security policy controls on the local operating system, the hard way by directly reading the classified data copying out, even if the configuration file encryption and decryption software can not prevent a malicious user to copy the files to a variety of cracking attempts, malicious users can *** malicious program copying directly into the hard drive, try to get a variety of user rights. All traditional laboratory data distributed desktop management is the way the document exists on the local hard drive, even closed all the data output port, a malicious user data can still be hard to read, or even take away the hard disk slowly parse the data.
- The advantages of centralized management architecture produced 2
With the widespread use of new technology, without changing the existing desktop usage, existing overall framework, the existing management, does not affect the use of feelings, desktop performance, peripherals compatible with centralized management architecture has become a laboratory experiment many colleges and universities room to explore and use one architecture. Centralization is mainly reflected in the "control" word, that is, the controllability of the operating system, application software controllable, controllability software assets, operation and maintenance costs of controllability.
2.1 operating system controllability
Controllability of the operating system is a PC desktop operating system, applications, unified installation, management, effectively prevent others from self-installing, modifying software or start non-native operating system through U disks, optical disks and other removable media, bypassing security policy restrictions directly modify the hard disk data, resulting in the desktop PC confusion, and sometimes damage to the system.
2.2 application software controllable
Different professions have different application requirements, it is necessary to set a list of suitable applications, application environment for application software controllable both simplify and stabilize the laboratory, but also on the genuine licensed software for effective management and flexible distribution.
Controllability 2.3 software assets
Colleges use only the highest number of concurrent purchase of application software, effectively saving software unit of input costs, improve asset utilization of hardware and software laboratory.
2.4 operation and maintenance costs of controllability
Huge centralized management architecture can effectively overcome the traditional architecture of the number of desktops, scattered locations, high management difficulty, configure different PC desktop and other issues, greatly reducing the laboratory management, operation and maintenance costs. In addition to handle the normal operation of business systems and the failure of paralysis can occur on the server and the network, saving time and energy, while also eliminating the need for a large portion of maintenance costs.
- 3 overall cloud management platform architecture
Figure 1 overall cloud platform architecture example of FIG.
As illustrated, the existing internet cloud dispersion system resources, software resources, computing resources (PC unit) unified management integration 1, forming a pool of resources, management through various networks (LAN, WAN, Internet, VLAN ) use of private cloud resource pools to deliver resources to the teachers and students of the PC and mobile end-demand, greatly improves the speed of laboratory emergency response, while rational planning software and hardware equipment, improve equipment utilization and coverage of hardware and software . HAS cloud platform is built on to the X86 PC as a standard infrastructure, software and hardware designed for a large number of decentralized computing solutions, centralized management of resources, to ensure the PC running speed, performance, hardware and software compatibility, and the user experience and habits under the premise of no change, effective to enhance the efficiency of decentralized management and resource utilization PC side, enhance data protection and security, while also significantly reducing maintenance costs and workload.
- Technical characteristics of cloud management platform 4
4.1 strong central management and local computing power
The platform strong central management and local computing power, without any additional hardware requirements, remain completely user habits, in line with local PC end computing performance, managing server-based, server-side management and control of all systems and applications; workstation desktop environment on demand , instant access to a variety of work environments, enable customers to improve infrastructure flexibility; capable of rational use of software copyright, to reduce the number of legitimate software license procurement; significantly reduce total cost of ownership, including maintenance costs, including labor costs (TCO), improve service efficiency and improve service quality.
4.2 uses advanced multi-level multi-node cluster system technology
The platform uses advanced multi-level and multi-node cluster system technology, the system is compatible with all Windows operating systems, application software validated and most Linux distributions. According to teachers and students, research needs to install WIN2000, XP, 2003, Vista, Windows 7 and linux, such as Redhad, suse, Ubuntu, Fedora, centos systems and software, is compatible with any Windows application that can be obtained from the server required operating system and application environments. Can provide multi-system multi-application environment to the client, easy to install, easy to maintain, flexible application; online update or add new applications, clients do not need to shut down; you can implement a variety of applications on the same server, you can build any system node (desktop application environment OS + AP); you can delete any system node, only the management server, reducing client maintenance burden.
4.3 The use of advanced network technology and control technology port Controls
The platform when implemented by the authorities authorized networks and the inner joint control, may be set different for the same client IP packet network control, connect to external networks, an additional set of available IP Internet application settings implemented; also provides DHCP functionality and a QoS control function, there is no DHCP protocol in the LAN environment, HAS cloud platform provides DHCP server functionality to distribute fixed IP for each client, and can provide QoS control and manage client state set up for each client and state control network, no additional physical NIC can easily block any client I / O or control I / O input and output devices, data can only be retained to achieve the effect locally, to effectively prevent leakage of key information; also according to customer needs limit network traffic of each PC terminal, set the necessary control parameters for each client.
4.4 The use of advanced load balancing and backup technology
In order to avoid damage to the hard disk or server crashes cause the client downtime, the cloud platform provides redundant solutions. Use multiple servers entry-level configuration consisting backup server at the same time, each server is automatically balanced sharing of client service. Once a server crashes or is not working properly, the client only needs to restart can be transferred to another server to continue working without affecting the progress of work; even if the server crashes can ensure that the user 24 hours to work.
4.5 The use of advanced dynamic data flow management and multi-channel reduction technology
As we all know, the limitations of the thin client system is that it will consume a lot of computing resources and bandwidth when hundreds of clients or start work at the same time. HAS cloud computing platform while maintaining the performance of the local PC maximize the use of local resources: CPU, memory, hard drives and so on. When enabled, the local cache feature can manage hundreds of clients on a single PC-class performance with stand-alone server and the client is no different (including computing performance and startup time), effectively reduce the network load, adapt to any network environment, the multi-channel reduction technology to ensure the operating system and application software to give complete protection, restore the card without having to install client, reducing network systems and anti-virus software can easily restore protection system, without having to worry about using the PC virus infection or system failure.
4.6 The use of advanced VLAN and Windows cross-domain management
Most LAN environments Ethernet protocol. But in some complex network environment, you may need to make the necessary VLAN and domain protection and Controls. HAS cloud platform can be the perfect combination of the current Windows domain environment, to achieve a variety of policy-based management; can also work in a cross-VLAN environment and implement all the features. Its compatibility without additional equipment, and convenient, simple and easy to implement.
4.7 The use of advanced technology and dual master underlying lift-off technique
All servers together into a resource pool, any server downtime will not affect the operation of the entire system platform; automatic repair mechanism, when the system file is damaged or lost, you can automatically repair missing files, protect system files and components needed stable operation; automatic process guard mechanism, when service issues arise core processes that can automatically fix the problem and restart the service within three seconds to protect the sustainability of the entire platform. Further use of lift-off technique so that the underlying hardware and application environment peeled completely free PC brand, model constraints, the more concentrated and convenient control PC call area dispersed computing resources. At the same time no longer make the data by stripping failure due to security threat data system, managers can decide to be stored centrally or decentralized storage of data based on the security level, the management more flexible.
4.8 HALSC proprietary file transfer protocol and on-demand distribution technology
Cloud platform works directly on the data link layer, has a higher packet transmission efficiency, no IP support, network transparent to the application, to ensure that damage from virus infection and spread through TCP / IP, the upper layer network protocol applications Perfect seam support, conflict and compatibility issues. In addition data and cache file system uses on-demand distribution technology to create a private network disk as in the local hard disk, create a public network disk to multiple clients use, distribute and retrieve some information or data to any or all clients according to the client application needs to distribute the required system environment (OS + AP).
- 5 practical application of cloud management platform
5.1 meet the needs of all the different applications in the lab.
Cloud platform can be of different types, brands of PC end unified into a single platform to manage. And develop appropriate desktop environment based on different professional needs, not only improve the efficiency of computer use, while addressing the cross-platform, software conflict problems, system conflicts.
5.2 terminal operating system for laboratory and rapid emergency response
Cloud platform architecture using different file systems, a reboot of time to update all the PC architecture and resolve at the end of all PC virus problem.
5.3 PC client management for laboratory and maintenance needs
Cloud platform reboot time to solve all the problems at the operating system level architecture, flexible multi-member management framework can be adapted to a variety of management needs. Significantly reduce maintenance batch computing terminal, maintenance cost. Effectively improve computer utilization, reduce hardware acquisition costs, any PC terminal to meet all the different business needs in architecture.
5.4 to meet the needs of different test laboratories
According to the different needs of college exam, develop appropriate test environment, the client can continue to work away from the server case.
Conclusion:
Cloud platforms take full advantage of local PC computing performance, the perfect support for peripheral expansion compatible, realize centralized management of smaller bandwidth and server stress premise. With the best performance, most flexible way, highest security and lowest cost on-demand delivery of desktop applications, simplifying costs, ensure that no PC software updates, failure resulting in reduced efficiency, ensure the continuity of all applications, availability, and business agility. While leveraging their existing technology investments, centralized, on-demand delivery of software applications and reduce legitimate software procurement costs and improve laboratory hardware asset utilization; providing primary and secondary servers running mode, even if the server and network catastrophic accident, PC end desktop policies to control the normal operation cycle can also be used. Supports in different VLAN or WAN environment to meet the needs of all laboratory environments.