McCain ATC eX NEMA, User Manual

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4.2 Controller Storage Drives
The controller has three main storage drives; the user may use them accordingly to application.
•
/atc drive. This is the non-volatile drive, the size of this drive is 8 MB, the user may use it for
permanent storage such application files or any kind of file that does not require to be accessed
for written so often.
•
/sram drive. This drive may used for storing static information such database files, and logs. The
content of this drive is retained for 7 days when the controller is not powered. The size of the
drive is 2MB.
•
/. This is the root file system; the size of the drive is 6MB. The user can use it for modifying the
functionality of Linux.
Warning : be careful using this drive, a bad management of it could cause
to controller malfunctions.
•
/dev, /etc, /mnt/rwfs, /tmp, /var. This drives are all together in a space of 1MB system memory.
User may manipulate them; any changes done on these drives are not permanently applied,
unless user dismounts them all together or separately.
•
Use Linux Manual for additional details.