At a high level, an import job involves the following steps:
Step 1: Attach an external disk to Server1 and then run waimportexport.exe
Determine data to be imported, number of drives you need, destination blob location for your data in Azure storage.
Use the WAImportExport tool to copy data to disk drives. Encrypt the disk drives with BitLocker.
Step 2: From the Azure portal, create an import job.
Create an import job in your target storage account in Azure portal. Upload the drive journal files.
Step 3: Detach the external disks from Server1 and ship the disks to an Azure data center.
Provide the return address and carrier account number for shipping the drives back to you.
Ship the disk drives to the shipping address provided during job creation.
Step 4: From the Azure portal, update the import job
Update the delivery tracking number in the import job details and submit the import job.
The drives are received and processed at the Azure data center.
The drives are shipped using your carrier account to the return address provided in the import job.
Reference:
https://docs.microsoft.com/en-us/azure/storage/common/storage-import-export-service
