Can I Format or Re-Flash the drive?
Formatting, and Re-Imaging the drive with non-mikrotik tools (like DD and Fdisk) will destroy your license! Be very careful and contact mikrotik support before doing this. It is not recommended, as mikrotik support might deny your request for a replacement license. For this use MikroTik provided tools Netinstall or CD-install that are freely available from our download page.
Under the Actions tab, you can define the filename, file size and number of rotated log files to keep. For disk performance reasons, I recommend a max of 4096 lines per log file. You can also prefix the filename with the path to an external usb thumb drive to keep your logs separate from the built-in flash memory.
Download Winbox Google Drive