ActualControllerNumber retrieves the actual controller number assigned to a SCSI controller with number `passedController`.

GetDevicePath finds the `/dev/sd*` path to the SCSI device on `controller` index `lun` with partition index `partition` and also ensures that the device is available under that path or context is canceled.

Mount creates a mount from the SCSI device on `controller` index `lun` to `target` `target` will be created.

Unmount SCSI device mounted at `target`.

UnplugDevice finds the SCSI device on `controller` index `lun` and issues a guest initiated unplug.

Config represents options that are used as part of setup/cleanup before mounting or after unmounting a device.