[zeeya]

3GB will probably be enough for you, but if you have a spare SD Card you can put things like thumbnails on there as per https://kodi.wiki/view/Path_substitution

So for path substitution my advancedsettings.xml looks like this:

Code:

<advancedsettings>
    <pathsubstitution>
        <substitute>
            <from>special://profile/Thumbnails/</from>
            <to>/var/media/SDCARD/Thumbnails/</to>
        </substitute>
    </pathsubstitution>
</advancedsettings>

That was of great help, exactly what I was looking for. My current CoreELEC installation has thumbnail folder of approx 2GB size. With this I can free up huge space.
After modifying the advancedsettings.xml do I need to move the "thumbnails" folder to SDcard manually or it is taken care by Kodi/CoreELEC?

If the folder is not there Kodi will create a new one, I don't know if you could move the existing folder or if that would cause any issues. Personally what I do is create advancedsettings.xml, delete Thumbnails folder then delete textures.db file from the Database folder. Then reboot and your thumbs will be repopulated fresh onto the SD Card.

Yes, I was also thinking in the same line and I will do it.
Thanks