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[ScreenOS] USB Flash Size Supported on SSG Platform.

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Article ID: KB9554 KB Last Updated: 18 Apr 2017Version: 8.0
Summary:

Is there a limit or list of USB devices that is supported with the SSG platform?

Symptoms:

Some higher capacity USB flash do not seem to work with the SSG platforms.

Solution:

The USB drive is USB 2.0 compliant. This is applicable to SSG-5, SSG-20, SSG-140, SSG-520, and SSG-550.

Ensure that the USB drive partition is:

  • less than or equal to 4 GB
  • Formatted as FAT32
  • USBs up to size 4 GB are supported by SSG devices. But for sending debugs to USB, use a USB less than or equal to 2GB.

SSG-> get db usb
Can not support bigger than 2G USB

  • For collecting memory dumps, the only supported partition of USB is FAT16. Otherwise, you will see the following error: 

SSG-> set core-dump usb full coredump.bin 500
Wrong FAT format, please make sure use FAT16.

  • For debug log collection to USB, partitions that are FAT16 and FAT32 are supported with USB size less than or equal to 2 GB.

Note: A 3rd-party application may be required to reformat/partition the USB drive. Supported partition type/size may differ when using USB to collect the debugs. Please refer to KB12277 -  How to send debug output information to USB drive.

For assistance collecting full memory dump via USB, please refer to KB12496 - [ScreenOS] How to save the full memory dump to a USB drive for SSG platform.

Modification History:

2017-04-05: Added USB size requirements, file size info for the memory dump, and reference link to KB12496

2017-03-28: Added reference link to KB12277 in the solution.

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