Migration: Imports
Migration: Imports
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After an import is successfully initiated, the import session displays under Migration > Import External Storage > Block Imports or File Imports (Figure 39). This page allows you to manage the import sessions as required including the following supported operations: Cancel, Cutover, Enable Destination Volume, Start Copy, Pause, Resume, and Cleanup. During an ongoing import, a cancel operation enables you to change the active path to the source storage resource. When a cutover operation is performed, the import session can no longer be canceled.
Figure 39. Migration > Import External Storage > Block Imports
Table 5 shows the actions available for import sessions along with the associated descriptions. An action depends on the import job current state.
Table 5. Import actions
Action
Overview
Cancel
- Cancels import session and goes back to source
- Terminates a session that has not been cutover
- Disables access to the destination volume
- Deletes the destination volume or volume group associated with the import session
Cutover
- Cuts over the resource in PowerStore
- Stops background copy and removes host mappings from source
Note: After a cutover has been completed, it cannot be canceled, and it is not possible to revert to the source resource.
Pause
- Suspends a copy-in-progress import session
- Only pauses the background copy; host I/O is still mirrored
Resume
- Resumes a paused session
- Starts the background copy again from where it was paused and continues the host I/O mirroring
Cleanup
- Removes an import session in clean-up-required state
- Removes an import session that had a failure
Actions applicable to Agentless Import
Enable Destination Volume
Note: Before you select this action, ensure the host application accessing the source volume or volumes is shut down. Also, ensure the host mappings are removed from the volume or volumes in the source system.
- Enables destination resource for writes
- Connectivity with the source system goes into inactive state
For each import session that is in the Ready To Enable Destination Volume state, select the import session, and select Import Actions > Enable Destination Volume to progress each import session to the Ready to Start Copy state.
Start Copy
Note: Ensure the host application has been reconfigured to access and use the destination volume or volumes in PowerStore.
- Starts the background copy and continues the host I/O mirroring
For each import session that is in the Ready to Start Copy state, select the import session, and select Import Actions > Start Copy to progress each import session to the Copy In Progress state