To check flash drive information on the ConnectPort X4, telnet to the unit, login as root and issue the "flashdrv" command. The following is an example with 2 USB flash drives (one 2MB and one 4MB):
Volume Bytes Used Available Bad Use% Mounted on
FLASH_USB 4002.94 MB 2414.24 MB 1588.69 MB 0.00 MB 60 A:/
DISK_IMG 2102.39 MB 857.40 MB 1244.98 MB 0.00 MB 40 B:/
We recommend avoiding any flash drives with built-in compression or which look like 2 drives.