2018年3月15日 星期四

How do the data centers migrate? What are the steps?

In our data center migration practice, we find that each type faces its own challenge. Early adopters were unable to support their ambitious deployment and found weaknesses in the first generation of cloud systems. The backwardness may be aware of the necessity of transformation, but it is hindered by costs, resources and time. Most companies are still the mainstream, and they tend to adopt a hybrid IT strategy, but they are stranded on the management level and forward.
 Data centre migration
Depending on the position of the cloud in the cycle, you may be recalibrating or starting and optimizing. In any case, caution is a good idea. The modernization of the data center is a complex and large-scale process, and the following is the 7 step of migration:
1. assessment of infrastructure
The key first step is to update your configuration management database (CMDB) or any other system that tracks assets. Without that information, you can't know what your infrastructure includes and the challenges you are facing at the moment. For a real transition, you need 100% clear.
2. directory and map applications
With the development of time, the amount of business application business will be expanded. You may find 4 tracking tools and 2 box HR applications. Do you have anything else? Is it possible to reduce the cost of the merger? Which applications should be migrated to the cloud, which is not? In the migration plan, you must clearly plan the location of the application and which dependencies are not destroyed.
3. design and estimation
There is a need for time to check. For example, an enterprise begins to know only 40%, and will realize that its original plan is too much. Once you decide what to abandon, what to move and when to move (for example, whether to migrate low or high level applications first), there will be strategic design for the future. Adding the design to the ROI tool can estimate the cost and financial rewards for you.
How does the cloud age data center migrate? Here are 7 steps
4. establishment and verification
At this stage, POC can help you familiarise yourself with the future and increase your confidence in the team. In view of the daily work of the IT team, most of the smart organizations know that to achieve their goals, they need experienced and dedicated partners. They can take care of projects while managing strategy and daily operation. Otherwise, it is difficult to make major changes.
5. migration infrastructure
Whether you follow the disaster recovery (DR) failover strategy or see the cloud as a platform for building a new version of the application, you are now in "building". Some projects will be on the cloud, while others will remain on the physical infrastructure. Some are on the edge, the rest are local, and all are based on your special needs. Through cloudy and correct settings, the infrastructure can enter a new state.
6. detection and verification
Next is the performance test to prove that your application and system are lifting, and there is nothing wrong with running. The detection should include a high availability part and a failover during the maintenance window. At the same time, the test should depend on the application, budget, and specific goals, such as RPOs or RTOs., which should be verified by any normal work.
7. start operation
This final stage is not an afterthought, because the operation manual should be created throughout the process, and it is easy to operate with cost efficiency and reliability. However, once the daily instructions are finalized, you can start working in a new migration state.
If you are like most businesses, you have already put one foot into the cloud. Those who migrate applications and infrastructure to the cloud, far more than those of "all in" and shilly-shally early adopters.

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