move some apps to sd card.

 

no, it doesn't.
if you have option "move to SD" you are safe.

 

Root and delete your alog files.

 

^^^ and this.
I just assumed nobody is using stock anymore.

 

actually it does matter what apps you move some apps that have widgets wont work/wont work right if you move them to SD

 

That's why most apps that have widgets will give you a warning dialog when you go to move them, most devs still allow the move because you might want to use just the app and not the widgets. Some other apps that I personally don't move are custom keyboards, backup apps, root apps, file managers and media players because I don't want to wait for the card to be scanned after booting before they're available for use . Just thought of something else, you can't move live wallpapers either.

 

When a phone is being developed programmers set up break points and logging to make sure that everything is working as designed. Before it's released to manufacturing the developers remove the debugger calls as they're not required anymore. The development logs were never disabled on the Triumph so you have these log files getting generated and consuming your storage space even though you haven't downloaded or installed anything. If you're not rooted the only way to get rid of them is with a factory reset, obviously this isn't attractive because of losing your files and settings, and now the bad news, this is only temporary because the logs will immediately start being generated again. If you have root then pretty much every custom rom disables the log files from being generated. The upside is that because they left this dev environment intact the phone is practically factory rooted, the Triumph is without a doubt the easiest phone that I've ever rooted. To sum up, if you're stock then factory reset or root your phone and install a custom rom.

 

What's your current setup?
Also see this post and let me know if any of these files exist and their size.

Edit : sorry, Tapatalk lost my link. Check out this thread to point you in the right direction for locating and removing the alog files : http://androidforums.com/showthread.php?p=3798144

 

Since your rooted; using either of the following apps: 1) DiskUsage or 2) "SD Maid" should allow you to find what files are taking up a large amount of space in your internal storage.

 

Also there are dedicated App to SD apps on the market. App2sd not only cleans the cache for apps, but shows apps with a grey X next to them that will have issues if you move them to the SD card. Search for app to SD as a generic term on the market.

 

I just delt with this on my daughter's tablet. First thing you need to do is find out the cause. That's what the idea of looking at your system's partitions is for. I usedStorage Analiser
Since you are rooted, you can look at the /system and /data partitions. That's where the issue is anyway. Just look in the options section. From there report back the bigest parts.