Azure file server migration

We are migrating a number of file servers to Azure . This is not Azure Files migration . We are migrating a file server that is running in 2012 server with about 4TB of data . I am being told by my team that since the storage is on an iSCSI target , the Azure migration tools and Azure site recovery will not work . All other VMs without an iSCSI target for storage have been migrated over with these tools . I thought about doing Robo Copy since the target file server is Windows 2022 server , but figured that it will take a good amount of time . What do you think is the best way of doing this . Your input is appreciated.