Let's talk about hybrid cloud today.
1. Why you need a hybrid cloud
The size of the enterprise is different, and the control of technology and security is different, so the cloud has various deployment modes. According to different deployment methods, it is divided into public cloud, private cloud and hybrid cloud.
The public cloud leader AWS has always been unfamiliar with private clouds and hybrid clouds, and believes that public clouds are the trend.
At present, only the US Central Intelligence Agency (CIA) has a large order of 600 million US dollars. Others rarely see AWS's actions on private clouds.
Another big cloud company, Microsoft, took advantage of the traditional data center and promoted hybrid cloud as soon as it came up, forming a differentiated advantage and achieving good results. In addition, Microsoft's comprehensive cloudification has also prompted Microsoft to turn its tide, its stock price has risen steadily, and its market value has exceeded 540 billion US dollars.
It is difficult for a private cloud to continuously provide fresh services like a public cloud. With the deepening of enterprise cloud transformation, enterprises will inevitably choose the public cloud with richer capabilities. If it can, because of security, enterprise architecture transformation costs and other reasons, this process cannot be accomplished overnight, so the demand for a compromise hybrid cloud is put forward.
From the cooperation between vmare and aws, VMware on aws can also see some signs of the weakening of private cloud. Vmare should see the trend of hybridization and the demands of its own transformation, which led him to cooperate with AWS. In addition, Gartner also gave an interesting prediction: by the end of 2017, nearly half of enterprises will adopt hybrid cloud deployment.
2. Decoding of hybrid cloud solutions
There are many solutions for hybrid cloud.
1. VMware on AWS (VMC) is a cooperative service that will be opened in the near future by VMware, the world's largest virtualization manufacturer, and AWS, the largest public cloud. The infrastructure is provided by AWS, and the software stack is provided by VMware, which provides users with a VMware environment on AWS, which can communicate with customers' existing on-premises data centers based on vmware, and can use various cloud services provided by AWS. A kind of hybrid cloud with "same virtualization base". (For more details, you can go to see: http://www.vmware.com/cloud-services/vmware-cloud-aws.html), not detailed.
2. AWS's support for hybrid cloud is actually not very good, it can only be regarded as barely. The key to the core is that AWS believes that hybrid cloud is only a transitional route and does not seriously support it.
2.1. Let's take a look at the hybrid architecture of AWS as a whole:
Enterprise local/existing tools
The corresponding architecture and functions in the cloud
Corporate Directory Login (Corporate Directory)
AuthenticationIAM Policies
Virtualized VM images (Virtual Images)
Convert VM Import/Export to AMI
Private Network
VPC Network
Customer Data (Your Data)
Our Storage moved to S3 via Storage Gateway
On-Premise Apps
your cloud application
2.2. Some cloud services supporting hybrid architecture
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Common public cloud basic services (core)
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EC2
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ELB
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EBS
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S3
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RDS
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Advanced Features
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VPC
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Virtual Private Network (VPN service enterprise private network)
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AWS Direct Connect
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Directory Services (corresponding to the enterprise's AD, a service for managing user identities)
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AWS Import/Export (VM image migration to public cloud)
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AWS Storage Gateway (the ability to transfer user's on-premises data to the public cloud)
It can be seen that the core idea of AWS is to provide more services/capabilities from the perspectives of data, network, database, enterprise authentication management, etc. to help enterprises go to the public cloud. The public cloud is AWS's favorite.
3. Huawei's openstack cascading solution.
Huawei's IAAS chose openstack (OpenStack is a free software and open source cloud computing management platform project jointly developed and initiated by NASA (National Aeronautics and Space Administration) and Rackspace, licensed under the Apache license.), in the community It is also very interesting to propose an openstack cascade scheme. Now a new project in the OpenStack community, Tricircle: https://wiki.openstack.org/wiki/Tricircle.
The core idea of this solution is to provide an upper-level proxy (resource orchestration layer), which is a complete openstack service that retains the core data model and open ecological APIs to expose the application, shielding the differences between the DCs below. The idea of the plan is very interesting. To be honest, I personally feel that it is very difficult to achieve, and there are too many scene restrictions. Let’s go and see. :)
4、其他还有不少混合云方案，下面这个博客做了不少总结：http://www.cnblogs.com/sammyliu/p/5290855.html
三、简单总结下
今天只是简单总结下了混合的诉求来源以及业界的一些现状，综合来说混合云是现在云服务比较热门的诉求，符合了企业转型的时间路线图。
我后面会更详细的去分析混合云内部的核心技术，也希望和大家有更多的探讨。
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