WTH how to "record" to a USB stick?

Hi,
I’m using a HomeAssistant Blue and tried to use a USB stick to store recorder/influxdb databases.
I would like to avoid using the internal eMMC to avoid wearing out the flash.
I saw that it was possible to move the data partition to an external storage but that would be for the whole partition, not just for the database.
I tried mounting the stick with a shell_command in configuration.yaml but that doesn’t work. Nor does it work using the terminal ssh because it runs within a container of course.

So, I’d like to see the following added:

  • a way to mount/unmount external storage (like NASes)
  • a way to suspend writing to databases when the storage is removed

This requests look a bit similar to An Official way to mount USB to HA OS .

Thanks for considering !