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Venzi_
·Posted in ctrlX CORE

USB storage

I am using the USB storage on the ctrlX Core to store process recipes and logged process data from our machine via Node-red.

After update of Node-red from 1.4.0 to 1.8.1 (RM21.03) I lost the acces to the mounted USB device.

I tried to format a new USB memory, but failed:

After formating it on an external linux machine and several reboots I got it mounted, but with error:

As user admin I have full access on the storage:

But, Node-red has no permissions at all to acces the storage anymore:

"failed to write to file: Error: EACCES: permission denied, open '/media/mnt/sda1/recipes/recipe3.csv'"

How can I recover that functionallity? Is there something new I missed to set after the update?

Thanks!

Best reply by CodeShepherd

Our internal storage is a 4Gb eMMC chip. At the moment only the size of a snap itself is limited to 250 Mb but not the storage used of it. Please beware of the limited write cycle lifetime of this chip.

You can have a look at the values mentioned by you for CPU and RAM utilisation and also the total storage (https://192.168.1.2/storage/storage). We recommened to keep at least 200Mb of free disc space for normal operation: 

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