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Help internal storage full by dev/block/mmcblk0p21

Oleros

Newbie
Hi my galaxy tab 10.1 2014 editon storage is full although i have delte all files I have added. After runding SDMaid I find that 11 GB is occupied by dev/block/mmcblk0p21. I dont have access to this folder as far as I can see. Wheat is it and how can I fix this?
 
In settings, storage , *tap miscellaneous, does it give you option to delete it?
 
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You mean in SDMaid? No. And can't even find the folder (or path) in native explorer app. Now the ...mmcblk0p21 folder actually is reduced to 2 Gb while another folder mmcblk0p20 now holds 3 Gb without me doing anything. .
 
Hi

These files are android system working partitions. Its not a good plan to delete them (you would need root access to do so) as that would probably crash your tablet ;)

Roger
 
I really question if SD Maid is compatible with your device.

Maybe I'm missing something, but I don't see where it reports storage for eMMC partitions. Only named folders and filesystems.

It's also something that you want to use VERY judiciously.
 
Ok so I wont touch it☺ What causes these sometimes massive build ups that actually makes my tablet close to unusable? And since they are system files, will they be deleted automatically?
 
Hi

Some of them may be/probably are swap partitions which are transient and should go once the app needing a large swap area closes (although its not easy to identify which are swap files). Their size depends on what your device is doing at the time. Its not realistic to try to delete them as if they were permanent data storage. Android tends to use available memory (and ram) efficiently - ie maximizes use and you should not worry unless performance is actually faultering.

Roger
 
Active swap on a stock Android? Swap that shifts as much as 11 GB? What??

Get Terminal Emulator, do the following -

df > /sdcard/df.txt

mount > /sdcard/mount.txt

View txt files on pc with WordPad, not NotePad.

That will show the filesystems and their allocations, and then the mount points for everything used in the partition table.

I know that it's obviously heresy to suggest it but I'll say again - I doubt that SD Maid is telling the truth.

The commands I've provided will tell you the truth, the whole truth, and nothing but the truth.
 
You can see if swap is implemented if rooted with the free command.

1422830026604.jpg

I have never seen swap implemented on Android other than as a root parlor trick.

Maybe I missed something on Samsungs?

By the way - Samsung is not afraid of hooking multiple mount points in such a way as to make themselves look good.

The SGS4 released in Europe, 16 GB, 7 GB free for the users. People complained. So when it came to the US, the Samsung tools showed that it had 9 GB for the user.

Except no it didn't and df exposed the truth.

Good luck.
 
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