Zeroizing from the ROM console
It is possible to zeroize the file storage from the ROM console of the switch, using the erase-all zeroize command at the prompt. This most likely occurs during a switch recovery process.
=> erase-all zeroize The system will be rebooted and all management module files except software images will be erased and zeroized. This will take up to 60 minutes and the switch will not be usable during that time. Continue (y/n)? y