websitedesign

Data center migration
1. do not rely on your own guesses
One of the worst mistakes in the organization is to overestimate the knowledge of their IT infrastructure and the technical applications and services they support. It is worrying that this is one of the most common mistakes. There is no doubt that the lack of new technology and employee turnover makes it difficult for organizations to retain professional knowledge of data centers.
Although everyone has made the greatest efforts in documentation and reporting, they need useful knowledge as they retrain or leave their staff. Even if the document does exist, it may be of poor quality and uneven. For example, the developer failed to record the changes of the policy and re - index after the new version of the application. This approach will lead to the trouble of migration and lack a single version of the truth data.

The answer here is carefully planned. It takes enough time to correctly complete the initial mapping and discovery phase, because this will save time and long-term costs.
2. do not exceed your own ability
It is tempting to view a data center migration project as part of a larger upgrade program, and to see and implement other major changes at the same time. Although it can theoretically save time and cost, in practice, it increases the opportunity for the failure of the project and causes the rest of the project to collapse. When there are multiple items, it should be considered in order to be implemented in order and to ensure that there is enough time to move.
In the same way, a common mistake is to set unrealistic goals and complete the timetable, and continue without understanding the impact of the time scale. This may start with a statement, for example, "the data center lease expires within three months, so we must migrate to the new data center before we expire." For a small company with only 10-50 servers, this may not be a problem, but for larger companies, it will take more time than three months. In addition, its complexity also affects the time scale. When the same 10-50 servers are constrained by the all-weather data center's flexible service level agreement (SLA), the balance of service delivery and migration deadline may lead to major conflicts.
Even if there is a wise migration plan, it is important to provide enough manpower to ensure that the deadline will not be missed, and employees will not feel tired. It is assumed that IT support and operators should not only perform data center migration, but also continue to perform their normal duties, which will inevitably lead to the decline of the quality of the two jobs.
3. must be widely purchased
Organizations from the beginning, managing users' expectations need to be part of the migration strategy of the data center. By ensuring the early migration of the affected business and the IT community. This will help make the capabilities of the new data center consistent with business needs, smooth transition during this period, and support a measurable rate of return on investment (ROI).
The pure technical complexity of data center migration is almost undisputed.  Advocacy organizations adopt a holistic rather than isolated approach, which helps the whole organization to agree on actions and eliminate objections as soon as possible, so as to prevent them from slowing down or damaging the migration of data centers. The data center migration until completed, all need decisive power to keep this momentum done in one vigorous effort.
4. do not assume the assumption in accordance with all BAU procedures
Effective governance of daily data center activities is critical to providing timely, reliable and secure services. However, it has been found that even the best clients and service providers fail to deal with the speed or change of data center migration required by all BAU processes.
The change management process on the side of the client and service provider is designed to restrict access, move, and stop activities of the data center. Usually, such 1 level or 2 level changes operate under the strictest change management control, such as multiple approvals Committee, so that a large amount of delivery time will be provided before the migration date is determined.
Data center migration can not be seen as a large number of small changes: migration, upgrading, or cancellation. Instead, it must use a predetermined number of equipment and only plan, approve and operate at the set time. This process must be approved at the level of senior business owners, to avoid overloading or delay the approval of client and service changes in all BAU process.
Similarly, the request management process is designed as a BAU operation for providing a new device or accessing a system and dealing with the requirements of the main project. In spite of this, it has been seen that the migration of data centers has absolutely submerged the process of request management, even making it stagnant.
The way to minimize this is to group the requests and to ensure the license well in advance. Then, when updating the related configuration management database, the detailed information of the affected configuration project can be managed as the approval renewal to the agreed timetable, rather than the labor intensive personal request.
No matter how perfect the organization's planning is, even the best data center migration strategy will face unprecedented complexity. In order to reduce the risk, a pragmatic approach, called intelligent migration, is advocated. This ensures a thorough initial basic work and discovery, allowing organizations to remain flexible when facing interruptions, and making informed decisions to overcome difficulties in implementation. Then, the chief information officer can be sure that they will be able to meet the needs of the growing business.