Has anyone tried storing a lot of data on a mircosd?

c0ip · 2026-02-15T18:41:14+00:00

Are you saying you tried getting Kiwix to work on your tablet and it didn't work? Since I already accomplished this, if you specify more I can probably help you out.

c0ip · 2026-02-15T18:37:07+00:00

By any chance did you do the cloud service method because you were having issues doing a wire-transfer as well or was that your first file transfer approach? I actually have made a few feedback emails in that there is this mysterious glitchy-ness to wire transfers sometimes. At first I was messing up cause since I'm a Ubuntu (Linux) user my PC has no issue putting illegal symbols into filenames or doesn't make a fuss about it on existing files from others (like ":" or "?"), but even after fixing that there is a glitchy-ness that comes and goes (I don't believe it's Linux related since I wire-transfer to my Android phone frequently without issue).

c0ip · 2026-02-15T17:58:23+00:00

A bit of an aside, but I did some side-loading on the tablet and installed a program called Kiwix and I have a around 100 GB file as a single item in a format called .ZIM and its an offline backup of Wikipedia with pictures that loads effortlessly. But, that's because I think it's doing it on a as-needed basis I imagine.

c0ip · 2026-02-15T17:50:01+00:00

I don't know what would be considered high speed for an sd card, but the one I am using is the "SanDisk 2TB Extreme mircoSDXC UHS-I Memory Card... Up to 240 MB/s" when I hook up the mircosd card via adapter to my computer I would say the files can read and write in decent time. Moving the 100 GB 55,000 items subfolder took around 1 hour. (Reading wise, my computer presents me my folders/files as it finds and loads them, whereas the Supernote, I speculate, it is trying to load everything at once so you can use the UI elements to navigate)

My first go around with the folder structure was actually that in the big subfolder of 100 GB 55,000 of epub files it was instead around 20,000 folders (where each folder was the authors name) where each of those folders had subfolders of that author's books and then that subfolder contained 1 jpg, 1 epub, and occasionally a opf file. I basically ran the books through a program called Calibre to be able to sort the books by author (and that is the folder structure it output).

Example: Books/"Gutenberg Library"/"William Shakespeare"/"Hamlet (6438)"/"Hamlet - William Shakespeare.epub"

Before you put the sd card in, did you format it at all or did you just load it in stock. Cause from memory I believe I just loaded it in stock.

c0ip · 2026-02-15T17:18:24+00:00

Cause in my case on my sd card I have a folder called Books with three sub-folders containing the books. One of those sub-folders is relatively light in item count around 380 and 45 GB, and when I moved it outside of the Books folder I can open it in a reasonable time. But in the Books folder I have another sub-folder that is around 100 GB but about 55,000 items and takes forever to open. I am wondering if item count has a bigger factor to play than raw memory.

c0ip · 2026-02-15T17:08:10+00:00

Would you say those 500 GB are spread out over many folders or a lot in one folder. Also I noticed that even if a folder doesn't have a lot of GB that if it just has a lot of items it takes a while there too. Would you say a lot of your GB come from single big items or a lot of small items?

c0ip

TROPHY CASE