Cloud computing Architecture Technology and Practice Series (16): 2.4 Cloud computing solution typical architecture combination and landing application scenario 2.4.1 Desktop Cloud

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2.4 Typical architecture portfolio and landing scenarios for cloud computing Solutions2.4.1 Desktop Cloud

The desktop cloud solution, based on the overall cloud computing architecture, is shown in 2-29 .

Figure 2-29 Desktop Cloud Solution architecture Subsystem Portfolio

Desktop Cloud solution is based on the cloud computing platform of elastic computing, elastic storage, operational operations and business management system functions, through the integration of desktop cloud session control management and remote Virtual Desktop Control Agent module, provide for enterprise internal application of the call center desktop cloud, business Hall Terminal Desktop cloud,Office Desk-facing cloud solutions, as well as VDI Rental services for public network users.

Its main business processes include:

l   it system or operator boss Desktop cloud issuing commands for the system, through the cloud cloud management platform between the soap" restful API interface, The interaction contains the standard desktop configuration specification defined by the vdi business release / undo the sealed command;

l Cloud management Platform's BSS System on VDI The Business Issue command is parsed, and the command is broken down to point to the desktop session Gateway VDI account issuance commands, and point to the "Flex calculation API and cluster scheduling " VDI virtual machine instance issuing commands;

l Desktop Session Gateway accepts commands from the Cloud management platform to create a desktop account;

l   "Elastic Compute" service part accepted from Cloud management platform BSS part of the EC2 compatible interface creates a virtual machine image that conforms to the original release requirements specification, contains virtual Desktop server-side proxies, and the desktop service-side EC2 IP

l   "desktop Session Gateway" receive from vdi thin terminal http/https desktop session login request via cloud api and aaa server interaction, or with Enterprise ldap/ad service directory interaction user identity authentication, and then further through the EC2 API Notifies the elastic compute service to start running instances of the virtual machine;

l The elastic Compute service passes with elastic storage SOAP message interaction, which completes the mount of the virtual storage volume specified in the specified business release command, including the system volume and data volume assigned to the virtual machine, booting from its system volume, and completing the initialization of the system;

l After the user authentication is passed, the user is used VDI The thin terminal is connected to the data center server via the Remote Desktop Protocol to establish desktop session;

l client operations from the thin terminal interact with the virtual machines of the backend service through the "Desktop streaming protocol" to complete the actual operation;

l Elastic Compute Management Servers, block storage, and object storage devices that make up the desktop cloud solutionVDIvirtual machines, desktop cloud session control gateways, data center layer switches (Access/converge/backbone), firewalls, and desktop cloud-specific load balancing andCacheAcceleration Equipment(LBS)related monitoring, alerting, performance, configuration, topology, and security management, all through compliance withSOAPrinciples ofWeb OMobject ofAPIaccept the end-to-end management of the cloud management subsystem;

l "Elastic Computing" intelligent scheduling algorithm, can effectively improve the desktop cloud VDI VMs resource utilization Efficiency in the overall server cluster, reduce the resource waste caused by unbalanced load and improve the efficiency of energy saving and emission reduction, and provide support for the dynamic scheduling ability of desktop cloud workload and other non-desktop workloads;

l   Because all servers and virtual machines in elastic compute share the same "resilient storage" instance, Enables support for the industry's largest support virtual machine ha vdi Minimizing the impact of service failures;

l   because the block storage provided by elastic storage provides a redundant mechanism for data reliability across servers, across enclosures ( 2 or 3 copy), can provide desktop cloud functionality beyond the pc Data reliability assurance for local storage, snapshot mechanism based on object storage, and remote disaster recovery mechanism, Enables desktop cloud data to revert to the stored data content at the time of the most recent snapshot when a larger disaster occurs;

l for desktop Office applications, the use of software pre-installation mode, in addition to the basic client operating system, further increase the terminal security management, Office Series, UC Communications, Email , CRM , ERP Pre-installed software, and depending on the target market, the creation of different virtual machine templates can be in the cloud management platform to specify different virtual machines, storage and network bandwidth specifications, and even different billing rules (for public cloud desktop rental scenario).

Cloud computing Architecture Technology and Practice Series (16): 2.4 Cloud computing solution typical architecture combination and landing application scenario 2.4.1 Desktop Cloud