|  | 7.3 | IOS Naming and Software Image Backup
| 7.3.2 | The copy flash tftp command
You can copy a system image back to a network server. This copy of the system image can serve as a backup copy and can also be used to verify that the copy in Flash memory is the same as the original disk file. In the example, an administrator is backing up the current image to the TFTP server. He is using the show flash command to learn the name of the system image file (xk09140z), and the copy flash tftp command to copy the system image to a TFTP server. The files can be renamed during transfer. One reason for this upload to the server would be to provide a fallback copy of the current image prior to updating the image with a new version. Then, if problems develop with the new version, the administrator can download the back-up image and return to the previous image.