云计算应用迁移

Rehost:

重新托管：

Rehosting an application to the cloud without making changes to its architecture or code.

将应用程序重新托管到云，而无需更改其架构或代码。

Refactor:

重构：

Involves application code and configuration changes for connecting the application to new infrastructure services.

涉及应用程序代码和配置更改，以将应用程序连接到新的基础结构服务。

Review:

评论：

Modifying or extending the existing code base to support legacy modernization requirements, then use rehost or refactor options for deploying to the cloud.

修改或扩展现有代码库以支持旧式现代化要求，然后使用重新托管或重构选项将其部署到云中。

Rebuild:

重建：

Involves rebuilding the application on a provider’s application platform. It discards code for an existing application.

涉及在提供商的应用程序平台上重建应用程序。 它丢弃现有应用程序的代码。

Replace:

更换：

Involves discarding of an existing application or set of applications and uses commercial software delivered as a service.

涉及丢弃现有应用程序或一组应用程序，并使用作为服务交付的商业软件。

将应用程序迁移到云 (Migrate an Application to the Cloud)

A few ways to migrate an application to the cloud:

将应用程序迁移到云的几种方法：

• Rehost on infrastructure as a service (IaaS)

  重新托管基础架构即服务(IaaS)

• Refactor for the platform as a service (PaaS)

  重构平台即服务(PaaS)

• Revise for IaaS or PaaS

  针对IaaS或PaaS进行修订

• Rebuild on PaaS

  在PaaS上重建

• Replace with software as a service (SaaS)

  替换为软件即服务(SaaS)

迁移到云的理论7步模型 (Theoretical 7-step model of migration to the cloud)

1. Conduct cloud migration assessments.

   进行云迁移评估。

2. Isolate the dependencies.

   隔离依赖关系。

3. Map the messaging and environment.

   映射消息传递和环境。

4. Re-architect and implement the lost functionalities.

   重新架构并实施丢失的功能。

5. Leverage cloud functionalities and features.

   利用云功能和特性。

6. Test the migration.

   测试迁移。

7. Iterate and optimize.

   迭代和优化。

将应用程序迁移到云可能是组织面临的挑战 (Migrating an application to the cloud can be a challenge to organization with)

• IT policy formulation

  IT政策制定

• Organizational politics and culture

  组织政治与文化

• Security, compliance, and SLAs management

  安全性，合规性和SLA管理

翻译自: https://www.includehelp.com/cloud-computing/application-migration-strategy-to-cloud.aspx

云计算应用迁移