what is the relation between internal sd card and internal storage?

dalvikna said:

seems apks are installed to internal storage, then what is the function of internal sd card?
which kind of data would be save to internal sd card?

btw, it seems /data folder is on the internal storage, how can i move this folder to internal sd card?

Click to expand...

Click to collapse

It's kind of complicated.

Huawei's setup on U8800 goes like this:
/data - standard APK installation, all settings & other OS stuff saved in there.
/HWUserData - almost exactly like external SD card, but apps cannot be installed on it (if I remember correctly external SD was default).

The reason it was designed like this was to enable media storage without SD card in pre-ics. Nowadays, most devices use combined /data (/data used for both apks, and also media like audio, files). The reason /datamedia is used is to have the same space available, but you can use it for how you want. On U8800 we cannot do that (standard 600MB for /data, 2GB for /HWUserData in stock).

Oh, and since /data and /HWUserData are different partitions, you really can't move these around. They are mounted onto Android.