This paper discusses how to plan the virtualization platform and realize the allocation of resources

From the perspective of improving resource utilization, reducing management costs, improving flexibility, and improving system security, availability, and scalability, Carestream Carestream Pacs RIS virtualization deployment solution was recommended to hospitals.

Schematic diagram of the system structure.

In this project, CareStreamPacs RIS will be established, including CareStream simulation server cluster, main storage system, diagnostic report workstation, registration workstation, technician workstation, clinical browsing workstation, etc.

Description of the composition of the program.

Virtual server resource planning.

Application nodes. The physical environment requires the number of CPU cores.

The physical environment requires the number of memory (GB).

The virtual environment requires the number of CPU cores.

The virtual environment requires the number of memory (GB).

pacs *1

250gbris*1

250gbbroker *1

250gbvuemotion(web) *1

250GB total.

1000gb

Due to the additional system overhead that may be brought about by the aggregation of resources by the virtualization software, deploying the same application in a virtual environment requires more CPU and memory than a physical machine.

The above is the total CPU and memory resource requirements for a Caresteam PACSS RIS virtualization deployment.

Hardware planning recommendations.

Server category.

Virtualization service backend configuration.

Quantity. Illustrate.

Virtualize servers.

International brand dual-socket 1U 2U rack server.

2*12Core CPU 128G 300 GB SAS*2 Single-port HBA*2 Gigabit Ethernet*4 Redundant power supply Rail Windows Server 2012 64 Bit ENG

Higher configurations result in better consolidation ratios and better use of vSphere's advanced features.

System primary storage disk configuration.

International brand disk storage.

Dual controllers, 8GB battery backup cache.

5*600gb 15k sas hd

raid10+1hotspare for vsever)

11*600gb 15k sas hd

raid10+1hotspare for db)

12*3tb sata hd

Virtual disk creation method: Thick provisioning zero.

It is recommended to virtualize the vCenter Server to reduce hardware costs and improve the availability of the core management node.

Total number of virtualized servers.

The total number of CPUs in the virtual resource pool.

The total amount of memory in the virtual resource pool.

First, the server, storage and other resources are virtualized, then all resources are centralized, and finally the resource usage of different users is reasonably allocated, avoiding waste and making data more secure, such as Zhengxrui server virtualization solution.

Higher resource utilization—Virtualization enables the dynamic sharing of physical resources and resource pools, improving resource utilization, especially for different workloads whose average demand is much lower than the need to provide dedicated resources.

Reduce management costs – Virtual can improve staff efficiency by reducing the number of physical resources that must be managed; Hide part of the complexity of physical resources; Streamlining public administration tasks by automating, gaining access to better information, and enabling management; Automate load management. In addition, virtual can also support the use of common tools on multiple platforms.

Increase flexibility – Virtualize enables dynamic resource deployment and reconfiguration to meet changing business needs.

Improved security – Virtual enables isolation and partitioning that is not possible with simpler sharing mechanisms, and enables controlled and secure access to data and services.

Higher availability – Virtual can delete, upgrade, or alter physical resources without impacting users.

Higher scalability – Depending on the product, resource partitioning and aggregation can support virtual resources that are much smaller or larger than individual physical resources, meaning you can scale without changing the configuration of your physical resources.

Interoperability and investment protection – Virtual resources provide compatibility with a wide range of interfaces and protocols that the underlying physical resources cannot.

Improved Resources** – Virtual has the ability to allocate resources in smaller units than individual physical resource units.

1. Higher resource utilization.

2. Reduce management costs.

3. Higher scalability.

Virtualization [1] is a broad term that refers to the operation of computing elements on a virtual basis rather than on a real basis, and is a solution to simplify management and optimize resources. Just like an empty and transparent office building, there are no fixed walls on the entire floor, and users can build a more autonomous and applicable office space at the same cost, thereby saving costs and maximizing the utilization of space. This idea of re-planning limited fixed resources according to different needs to achieve maximum utilization is called virtualization technology in the IT field.

Virtualization technology can expand the capacity of hardware and simplify the process of reconfiguring software. CPU virtualization technology can emulate multiple CPUs in parallel with a single CPU, allowing one platform to run multiple operating systems at the same time, and applications can run in independent spaces without affecting each other, thus significantly improving the efficiency of the computer. Virtualization technology is completely different from multitasking and hyper-threading technology.

Multitasking refers to the simultaneous parallel running of multiple programs in an operating system, while in virtualization technology, multiple operating systems can be run at the same time, and there are multiple programs running in each operating system, and each operating system runs on a virtual CPU or virtual host; The hyper-threading technology only simulates a single CPU and two CPUs to balance the performance of the program, and the two simulated CPUs cannot be separated, but can only work together. Virtualization is also a huge technological advancement in terms of reducing the overhead associated with software virtual machines and supporting a wider range of operating systems, unlike VMware Workstation that also achieves virtual virtual effects. There are many definitions of virtualization technology, and some of them are given below.

Virtualization is the process of representing computer resources in a way that both users and applications can easily benefit from, rather than in terms of their implementation, geographic location, or proprietary way of physical wrapping. In other words, it provides a logical, rather than physical, view of data, computing power, storage resources, and other resources. ” jonathan eunice， illuminata inc。

Virtualization is the process of representing logical groups (or subsets) of computer resources so that they can be accessed in a way that benefits from the original configuration. This new virtual view of resources is not limited by implementation, geography, or the physical configuration of the underlying resources. "Wikipedia" virtualization:

Provides a common set of abstract interfaces for a similar set of resources, hiding differences between properties and operations, and allowing resources to be viewed and maintained in a common way. ” open grid services architecture glossary of terms。

There is a strong correlation between strategy implementation and resources

The implementation and realization of corporate strategy requires the support of resources; Resources should be adjusted according to the strategic planning of the enterprise; At the same time, the strategic planning of the enterprise also determines what kind of resources are needed for the future development of the enterprise.

1. First of all, grasp the key elements of industrial success. The best resources in the enterprise should first be satisfied with the key success factors of the industry and the key tasks to be completed.

2. Grasp the urgency of the task sequence. The timing of tasks or projects is dictated by the strategy, but it follows the inherent regularity of the project or the activity itself. When allocating resources, enterprises should clarify the priority of various strategic tasks and allocate resources according to the task sequence.

In an enterprise business portfolio strategy, it is also necessary to determine when different businesses will enter, when to expand and when. The business mix should be able to ensure a dynamic balance between cash flow and other resources, and the timing of resource allocation should be commensurate with achieving these balances.

3. Retain appropriate strategic resource redundancy. Allocating resources by task or goal is really just a plan, which is based on "projections" and has a lot of uncertainties. In order to ensure that the goal is accomplished, or to improve reliability, the enterprise needs to have a certain amount of resource redundancy, just as it is necessary to leave reserves in a critical battle.

Closely related to resource redundancy is resource reserves, which are necessary for enterprises to respond to environmental changes. When the enterprise develops smoothly and flourishes, it is less aware of the strategic significance of resource reserves.

4. Strategically oriented resource allocation. The allocation of strategic resources should not only be based on the present, but also focus on the long term. In reality, some enterprises may be attracted by short-term interests, so that strategic resources are scattered, and they cannot achieve big careers through focus; Or often forced by the immediate pressure, such as raw materials to buy, wages to pay, equipment to repair, to do, etc., but in research and development, staff training, management innovation, etc., failed to realize its strategic importance and refused to invest.

As a result, the "immediate need" is exhausted and the "immediate priority" is neglected, which ultimately leads to the closure of the enterprise.

Cloud computing is achieved through virtualization. Cloud computing is a concept, not a specific technology.

Virtualization is a specific technology that refers to products that virtualize hardware resources to achieve isolation, scalability, security, and resource utilization.

Virtualization is a general idea. Cloud computing is a PaaS architecture built on the basis of virtualization, and virtualized software and hardware resources can be managed through the management platform. I hope CLP Hualian's answer can help you.

There's a saying that's well said:

The road to the cloud starts with virtualization.

Virtualization is a technology, and cloud computing is a service.

Virtualization is the foundation and necessity of cloud computing.

Cloud computing is a type of virtualization.