SD Card size

Ian

Sorry to bring up an old topic (https://discuss.moodlebox.net/d/40-are-32-gb-necessary-for-the-micro-sd-card) but I would like to know if the sd card should include a "buffer" space. In other words, my completed project leaves 10% or 6gb on a 64gb card. If I distribute this as it is, will it lead to potential problems for users down the line or is it better to distribute on a 128gb card?
Thank you for the advice.

Ratna

Ian Considering the 5% reserved space of a Unix file system for the super user, your 10% is not critical. But what we don't know is the future, how much data your system will keep on collecting. Say, in a passive (static) web site, only the logs grow. On the other hand, on an interactive application like Moodle, there are no limits. Files (images, videos) the users upload is one thing. And the backups and backups of backups the teachers and the administrators take are another thing. It was last week I encountered a Moodle site which was frozen because the 500 GB SSD was was full within a year, 80% consisting of backups and backups of backups.

So the short answer is: Ask your users!

Nicolas

It's always a good idea, for any file system, to keep a bit of free space on it. YMMV, but I do think that 10% is a bit low, so I'd go for a bigger SD card, just to be sure and to cope with people tendency to fill up the free space.

This is clearly opiniated and I insist that in the described situation, with a 64GB card, everything will probably go well, but you never know :-)

Ian

Nicolas Thanks. I also thought it would be better especialy as I will need the occasional backup. I suppose I kind of hoped to get away with it because the next size up doubles the price. But better safe than sorry...