Please make sure that you have installed the correct ATTO driver for the Symply LTO product that you have purchased. Windows Server 2016, 2019, 2022 and 2025 need the IBM LTO tape driver for your server’s version before the tape drive will show correctly under Tape drives in Device Manager. See [PRO LTO – Download drivers] for the correct driver.


Check you are using a certified Thunderbolt™ 3 connection to your Thunderbolt™ 3 equipped Symply LTO product, more details can be found in this article: [Do SymplyLTO products connect over USB-C?].

Follow these instructions to use IBM's Spectrum Archive Single Drive Edition (SDE) software to map your Symply LTO drive in Explorer.


Install IBM SDE

Download the correct version of IBM SDE (LTFS) for your OS - [PRO LTO - Download drivers] and follow the on-screen prompts to install the software.


Assigning a drive letter to a tape drive

Type 'LTFS Configuration' in the Start menu and click it to open

The Configuration panel displays the following information:

  • Drive Letter: Assigned or unassigned
  • The Drive Letter drop-down contains the following three possible scenarios.
    • Unassigned (blank).
    • Assigned (with SCSI device address).
    • Unchangeable (reserved by the system).
  • Tape Drive: Details of port, bus number, target ID, logical unit number, and drive serial number (a 10-digit value).


LTO commands available in Windows Explorer

Right-clicking on the drive letter in Explorer offers access to the following LTO commands:

  • Format...
  • Eject
  • Rename
  • Properties