Rehost is fast, predictable, repeatable, and economical, which makes it the most preferred method for migrating to the cloud. Rehost is one of the quickest cloud migration strategies, where the server or application is lifted and shifted from the source on-premises environment to the cloud. Minimal changes may be made to the resources during the migration process.

Customers often use rehost to migrate their applications to the cloud quickly and then focus on optimization when the resources are running in the cloud. This technique allows them to realize the cost benefits of using the cloud.

Customers typically use the rehost technique for the following reasons:

• The temporary development and testing environment
• For when servers are running packaged software, such as SAP and Microsoft SharePoint
• An application doesn't have an active roadmap

While rehost is an application for packaged software and helps us move quickly into the cloud, you may need to upgrade underlying application platforms such as operating systems. In such a situation, you can use the replatform approach of cloud migration.