Menu path: Setup > Devices > Storage Hotplug

In this area you can set up the connection of hotplug storage devices. These can be USB mass storage devices or MMC card readers for example.

Following file systems are officially supported: 

ext2, ext3, ext4Standard Linux file systems
squashfsa packed read-only file system
vfatsupports all FAT variants (except extFAT)
udfCDROM/DVD file systems
ntfsabout ntfs-3g (Fuse)

You can change the following settings:

  • Default permission: Default access rights for hotplug storage devices.
    Possible values:
    • Read/Write
    • Read only
  • Enable dynamic client drive mapping

    ☑ Hotplug storage devices will automatically be added and removed during ICA sessions and RDP sessions.


Before you unplug a hotplug storage device from the thin client, you must safely remove it. Otherwise, data on the hotplug storage device can be damaged. Depending on the configuration, there is one or several possibilities to safely remove a hotplug storage device:
  • Click on in the task bar. The taskbar is not available in a fullscreen session.
  • Click on  in the in-session control bar. Depending on the configuration, the in-session control bar may be available in a fullscreen session. For further information, see In-Session Control Bar.
  • Function Accessories > Safely Remove Hardware with further starting possibilities; amongst other things, a hotkey can be defined here.

    If the following warning is displayed: Volume(s) still in use. Dont' remove the device., then the hotplug storage device must not be removed. First, exit the program concerned or close all files or directories that reside on the hotplug storage device.

    ☐ Dynamic client drive mapping is disabled (default)

  • Number of storage hotplug devices: The number of hotplug storage devices that can be used simultaneously in the session (default: 0).
  • Private drive letter for each storage drive

    ☑ A drive letter is assigned to each hotplug storage device.

    ☐ A single drive letter will be generated for all hotplug storage devices and each hotplug storage device will be assigned a sub-directory. (default)

  • Start storage drives with this drive letter: Letter that is assigned to the first hotplug storage device if automatic drive mapping is enabled (default: A). Further hotplug storage devices are assigned the next letter alphabetically.
  • ICA Read Access for storage hotplug devices: Specifies whether read access to hotplug storage devices is allowed in an ICA session.

    This setting is only effective if Enable dynamic drive mapping is disabled.


    Possible values:

    • Yes: Read access is allowed.
    • No: Read access is not allowed.
    • On request: Read access can be allowed on request.
  • ICA Write Access for storage hotplug devices: Specifies whether write access to hotplug storage devices is allowed in an ICA session.


    This setting is only effective if Enable dynamic drive mapping is disabled.


    Possible values:

    • Yes: Write access is allowed.
    • No: Write access is not allowed.
    • On request: Write access can be allowed on request.
  • Use storage hotplug beep

    ☑ A signal tone will be heard when connecting and disconnecting hotplug storage devices. (Default)

  • Show storage hotplug message

    ☑ Hotplug messages will be shown when connecting and disconnecting hotplug storage devices. (Default)

  • Message timeout: Period of time after which the window with the hotplug messages is hidden. If the time period is set to 0, the window will be shown until it is closed manually (default: 15).

    You will find further settings options in the HDX / ICA Global setup area under Drive mapping, in the RDP Global setup area under Drive mapping, in the Devices area under USB access control and in the Accessories area under Disk Removal.