Hybrid Cloud explained

Hybrid Cloud: Turning risk and complexity into a positive experience

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混合云正在迅速成为寻求最佳世界的组织所选择的云模型. But if a hybrid or multi-cloud deployment is not supported by the right connectivity, then a poor experience can result and expected dividends fail to materialise.

Growing market, growing challenges

Enterprises continue to move essential applications and workloads to the cloud at a rapid rate. But as the cloud market develops, and embraces a growing number of mission critical functions, 对企业来说,管理云迁移可能带来的问题和风险比以往任何时候都更加重要.

现在许多企业都采用混合或多云模型,以分散风险和最大化云计算的红利, it is more important than ever that they choose the right connectivity partner to underpin their cloud strategy and make the dynamic interconnection of multiple end points as seamless and reliable as possible.

If a move to the cloud is to be a positive experience, then it must be backed by a future-proofed fibre network that has direct connectivity around the globe into the key data centres where the cloud resides. Only this kind of network can support an enterprise’s digital transformation and give them the guaranteed up-time and maximum agility that they need to compete.

But a great cloud experience is about more than just a great network. It’s about an accompanying level of service that goes the extra distance to maximise your productivity and minimise your exposure to risk, complexity and uncertainty.

Not only is cloud overtaking more traditional ways of delivering compute services, it is significant that hybrid cloud - the combined use of both public and private cloud resources as part of a overall cloud strategy - is on track to become the dominant cloud model.


The evolving path to cloud adoption

What is driving the next era of cloud? We surveyed 400 IT decision makers and C-level executives, across Europe and Asia. Get all the insights in this exclusive research.

The drivers of hybrid cloud

So what are the drivers behind the hybird cloud model? Here are some common use cases:

1. Keeping sensitive data on-premise

The setting up of a private cloud, 在内部服务器架构上运行,或者通过私有连接在专用数据中心空间外供应, makes sense to an enterprise that needs to keep at least some of their IT under their own control. 在某些情况下,对私有云的偏好是由规定如何存储客户数据的监管需求驱动的, 或者在其他情况下,仅仅是对在共享数据中心环境中放置关键任务功能感到不舒服, accessible over an ordinary broadband connection. But it can be desirable and economically sensible for some IT functions – the ones not likely to be compromised by being accessed over the Internet - to reside with a public cloud service. 这就是为什么许多组织选择将内部云部署和公共云部署同时进行的原因.

2. Cloud bursting

A private cloud does not necessarily handle unexpected peaks and troughs of usage in the same way that a public cloud service such as Microsoft Azure or Amazon Web Services does. When a major scaling of resources is needed, 将选定的工作负载从私有云环境转移到公共云环境,以满足容量需求是很有帮助的. This might be in response to temporary pressure, such as a spike in usage of a particular application for seasonal reasons, or perhaps be down to an unforeseen event that affects demand for a service. A hybrid cloud scenario might see most needs catered for by a private cloud environment with any spikes handled by on-demand resources from a public cloud. For cloud bursting to work necessitates secure, low-latency network connections between the different cloud environments.

3. Trying something new

偶尔会出现一项新技术,刺激IT世界,并有望改变游戏规则. 每个CIO都希望为这种技术开发可能的应用程序,并在部署之前对其进行测试. The hot button at the moment is artificial intelligence which has led many organisations to explore ways of automating the process of learning from data in order to improve a range of business processes. For those that want a way to test out a new AI or machine learning application, the public cloud can be a safe space to do this without having to throw capital at developing it as an inhouse capability in a private cloud environment. Once an AI application has proved itself as being of lasting benefit, then an investment can be made to bring it back on-premise.

4. High availability, maximum resilience

Organisations with a global footprint may feel particularly vulnerable to the failure of services at one or other of their distributed locations. They will want a plan in place to handle any disaster and protect workloads. A hybrid cloud strategy can play a part here. The principle IT environment can be maintained in a private cloud, with a recovery environment held in the public cloud to mirror it. 然后可以启动公共云环境,以应对威胁到私有云的紧急情况. 任何这类高可用性策略都必须依赖由可靠服务水平支持的世界级连接.

The next dimension - a multi cloud approach

The basic hybrid cloud model has now moved into a new and more complex phase. Enterprises are increasingly going beyond a simple twin public and private deployment and opting instead for a mix of different public cloud services from different providers to run alongside their private cloud.

This naturally adds yet further to the need for the right connectivity partner to manage a potentially complicated set up and make it work dynamically and seamlessly to ensure an optimal experience. The multi-cloud model enables enterprises to separate different workloads into different cloud environments depending on their specific requirements. 对于这些需求如何与不同云服务的优势相匹配,可以做出很好的判断.

Multi-cloud saves an organisation from being locked into one cloud service provider. If you are picking and choosing which workloads to place with which service, then the power resides with you, not the service provider. 他们的工作是向你推销产品的好处,而你的工作是决定谁提供最好的价值. Dividing workloads between providers can give you cost savings by letting you opt for best value, and also allow you to leverage the core strengths of different providers for particular tasks – because they certainly don’t all offer the same thing.

There can also be a security dividend. As the cloud market matures and expands to handle ever more critical tasks, so too does the attractiveness of the ecosystem increase for perpetrators of distributed denial of service (DDoS) attacks and other security perils. 管理良好的多云环境可以最大限度地减少一个或多个云服务成为攻击的受害者时可能造成的损失. Having a single provider leaves you far less resilient in the instance of any sort of downtime, whether it is down to malice or technical failure. 最好是能够将受到威胁的负载转移到你已经有合同的其他供应商之一.


The evolving path to cloud adoption

What is driving the next era of cloud? We surveyed 400 IT decision makers and C-level executives, across Europe and Asia. Get all the insights in this exclusive research.

The challenges of a hybrid or multi-cloud approach

With a hybrid or multi-cloud environment comes the potential for complexity, and with complexity comes the potential for a negative experience. At the very least it is an environment that demands new approaches to IT management from CIOs. Desired benefits from public cloud, like cost savings, 如果没有正确的管理方法,网络性能的自动优化和安全性的提高将不会实现.

管理不善的混合云或多云环境最终会比它所替代的模型花费更多. Automation and resource utilisation can take time to get right. 而且安全——一直是迁移到云计算的潜在威胁之一——需要投资才能有效工作.

支持一个复杂的云服务网络可能需要一些组织可能不具备的技能. Beyond these challenges is the obvious fact that using multiple public cloud services and wrapping that up with on-premise resources must deliver something incremental, or it is not worth doing.

From segregation to dynamic integration

在现代数字经济中竞争的一切都是关于以最大的灵活性满足波动的业务需求. This means activating or deactivating resources according to slight shifts in patterns of demand, allowing an organisation to best serve its customer base before a competitor can get a foothold.

A hybrid or multi-cloud environment must match this need by being dynamic and fluid, not static with resources isolated in their own siloes. Workloads must be able to switch when required from data centre to data centre, from service provider to service provider, from on-premise server to public cloud and back again, all without loss of service.

这种方法只有在不同元素之间存在动态集成时才会起作用. The different aspects of a complex cloud strategy must not be managed in isolation, but integrated into something that is potentially much greater than the sum of its parts. 早期的私有云部署往往与运行在公共云中的应用程序严格隔离, but the future of hybrid cloud computing must do away totally with this separation, enabling the dynamic distribution of applications and databases across multiple environments.


The evolving path to cloud adoption

What is driving the next era of cloud? We surveyed 400 IT decision makers and C-level executives, across Europe and Asia. Get all the insights in this exclusive research.

Why the network is key to it all

In this scenario, it easy to understand how the success of a hybrid or multi-cloud strategy model is in a large measure down to the quality of the network that underpins it. Any cloud adoption or digital strategy will either sink or swim on its connectivity, none more so than a hybrid one with its volatile traffic patterns and peaks and troughs of demand.

A network must deliver seamless communication between public and private cloud environments, and facilitate the movement of virtual machines or databases between multiple data centres. The right network will be able to respond to the most dynamic of patterns, 以最经济的方式在复杂的基础设施网络中尽可能均匀地分配工作负载. 正确的网络将使一个组织不仅能使成本最小化,效率最大化, 但也要为员工提供最好的体验,这样他们才能为客户提供最好的结果.

Traditional enterprise network service providers will have to transform their platforms and services to stay relevant and competitive in the cloud computing era. Better to choose a networking partner that has already made this transition and is thus well placed to offer customers a superior cloud networking experience.

混合云和多云战略需要一个复杂的伙伴关系和互联网络, 最好是找到一个已经在他们的网络和云提供商生态系统之间建立了链接的合作伙伴. The ideal network will reach as directly as possible from an organisation’s end points to the all the major data centres and colocation points, in other words the locations where the main public cloud platforms reside.

In a globalised economy, enterprises need reach into data centres in all corners of the world. 全球IT战略的强大程度取决于使之成为可能的全球互连的质量和可靠性. 但安排多国互联互通和签订合同可能会缓慢、昂贵、复杂且缺乏灵活性. Better then to have a network partner that can care of it all for you.

It should be fast and easy to interconnect the data centres that host your cloud services, even if they are in different cities, countries or continents. Only then can your business-critical IT services work together seamlessly, regardless of location.

The right network will also offer private connectivity from data centre to office, so as to reduce network costs, increase bandwidth throughput, and provide a more consistent network experience than pure Internet-based connections.

现代网络还应该提供组织期望从云服务提供商那里获得的业务便利. Networking services should be available on-demand in real time, and paid for according to use and not up front in the form of a long term commitment. 与云服务的优点相匹配的网络服务将会提供端到端良好的云体验.

Not all networks offer the same experience

While networks can be similar to each other at a basic level, it’s only a network with a truly resilient design that can switch you over to a different route so that you don’t notice when problems occur. You need a partner that can deal with any issues quickly, keeping in better contact with you throughout, responding to your needs, 展现想象力,为你提供最好、最稳定的服务.

Enterprises that move to the cloud often do not have large in house IT resources. 这让他们有了额外的价值,因为他们有一个合作伙伴来帮助他们明确需要什么来实现云策略功能. It must be a partner that can translate an enterprise’s very specific and individual needs into the right connectivity solution for their needs. 连接性需要从一开始就正确,以确保云策略以良好的体验结束.

You should not notice as workloads switch from cloud provider to cloud provider. It should be seamless. 在世界任何地方都适用相同标准的全球连接将在这里产生不同.

If you are taking what feels like a risky bet on a cloud move, giving away control of at least some of your core systems, you need a partner who will be trying hardest to derisk that bet and make it all work for you.


Public cloud

A cloud model whereby organisations purchase computing services offered by a cloud services provider (such as Microsoft Azure or Amazon Web Services) and access them over the Internet. One of the key strengths of the public cloud model is that it can save organisations from the cost of owning and operating their own server infrastructure and paying for software licences. Public cloud services are provided to multiple customers out of shared infrastructure.

Private Cloud


Hybrid Cloud

A cloud model whereby organisations access computing services that are provisioned over infrastructure that is dedicated to their exclusive use. That infrastructure may reside in a remote data centre, or on the organisation’s own premises. The popularity of the model comes from the greater levels of control, customisation and security than is offered by taking the public cloud route.

混合云是一种云计算模型,在统一的云策略下结合使用私有和公有云模型. It is customary for there to be a degree of orchestration between the two models so that workloads can be switched between them if necessary. 该模型的受欢迎之处在于,它提供了一种妥协,即必须在一个模型或另一个模型之间做出承诺.

A cloud model whereby use is made or more than one public cloud service, perhaps combined with certain functions being retained in-house on a private cloud as well. 典型的拆分方式是,从一个公共云提供商那里获取基础设施即服务,从另一个公共云提供商那里获取软件即服务, thereby spreading the load according to where specialisms are seen to lie. The popularity of the model is that it maximises choice and flexibility and spreads risk.

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