Select the storage mode¶

Once the prerequisites are met, you can select from two available storage modes for migrating binary image data from an MSR 2.9.x system to an MSR 3.0.x system: inplace and copy.

Note

In all but one stage of the migration workflow, you will indicate the storage mode of choice in the storage-mode parameter setting. The step in which you do not indicate the storage mode is Restore the data extract.

Storage mode	Description
`inplace`	The binary image data remains in its original location. The MSR 3.0.x system must be configured to use the same external storage as the 2.9.x system. Refer to configure-external-storage for more information. Important Due to its ability to handle large amounts of data, Mirantis recommends the use of `inplace` storage mode for most migration scenarios.
`copy`	The binary image data is copied from the source system to a local directory on the workstation that is running MMT. This mode allows movement from one storage location to another. It is especially useful in air-gapped environments.

Storage mode

Description

inplace

The binary image data remains in its original location.

The MSR 3.0.x system must be configured to use the same external storage as the 2.9.x system. Refer to configure-external-storage for more information.

Important

Due to its ability to handle large amounts of data, Mirantis recommends the use of inplace storage mode for most migration scenarios.

copy

The binary image data is copied from the source system to a local directory on the workstation that is running MMT. This mode allows movement from one storage location to another. It is especially useful in air-gapped environments.

Important

Migrations from source MSR 2.9.x systems that use Docker volumes for image storage, such as local filesystem storage back end, can only be performed using the copy storage mode. Refer to Filesystem storage back ends for more information.