1. Android Central Question's Avatar
    My storage is listed as:
    Android OS (3.46 GB)
    Internal Storage (4.19 GB used of 4.54 GB)
    SD (.98 GB out of 28.5 GB)
    However....
    When I go into Internal Storage, it lists:
    Apps- 1.41 GB
    Cache - 1.55 MB
    What the heck is taking up the other ~3 GB in my internal storage, if the OS is already accounted for?
    07-09-2018 10:39 AM
  2. SpookDroid's Avatar
    OS takes up (as shown above) 3.46GB alone, plus 1.41GB worth of apps... that's pretty much the 4.2GB that your internal storage usage is showing.
    07-09-2018 12:28 PM
  3. Rukbat's Avatar
    Phone storage is partitioned (like a PC with one hard drive that has 2 "drives" - C and D). But there are many partitions - bootloader, recovery, system, userdata - and it's only that last one that you have access to. Some manufacturers take as little space for everything else as they can and leave as much as possible for userdata. But some take more for other partitions (who knows why? I don't work for any of them), so userdata is smaller. It looks like your userdata partition is 4.54GB, so that's all you get. Android OS takes up 3.46GB. But you don't see Linux listed there, and it's on your phone too. (Android OS is a program not an operating system - it runs on a Linux operating system.) The recovery partition isn't listed there. The bootloader partition isn't listed there.

    Phones are rated by the total amount of internal storage, so a 16GB phone has a total of 16GB. But the recovery and bootloader partitions take part of that, Linux sits in part of that, there's a boot partition. In newer phones, there are 2 system partitions, a and b. (The system gets updated to the one not currently in use. If the update worked, the phone switches to it. But if it dodn't work, you don't get a bricked phone, you just stay on the last update. Great idea [finally - I've been asking for it since Cupcake] but it costs storage.) So what you see, in an Android phone, is not what you get.
    07-09-2018 03:16 PM
  4. motog3user101's Avatar
    OS takes up (as shown above) 3.46GB alone, plus 1.41GB worth of apps... that's pretty much the 4.2GB that your internal storage usage is showing.
    So even though the 3.46 GB is listed separately when I go into storage, it's still included in my Internal Storage total of 4.54 GB? If so man is that misleading ...

    Why is my storage so full when I have almost no apps?-screenshot_20180709-113026.png
    Why is my storage so full when I have almost no apps?-screenshot_20180709-113036.png
    07-10-2018 09:08 AM
  5. motog3user101's Avatar
    Phones are rated by the total amount of internal storage, so a 16GB phone has a total of 16GB. But the recovery and bootloader partitions take part of that, Linux sits in part of that, there's a boot partition. In newer phones, there are 2 system partitions, a and b. (The system gets updated to the one not currently in use. If the update worked, the phone switches to it. But if it dodn't work, you don't get a bricked phone, you just stay on the last update. Great idea [finally - I've been asking for it since Cupcake] but it costs storage.) So what you see, in an Android phone, is not what you get.
    So newer phones (for example, a 2015 Moto G3?) basically reserve enough space for the OS in an inaccessible partition? (Sorry if that seems obvious by your answer - just trying to clarify; I'm a little new to paying much attention to things like this).
    07-10-2018 09:12 AM
  6. SpookDroid's Avatar
    All phones do. Your Internal Memory (as listed) is never the AVAILABLE memory. There will always be a part (in newer versions of Android, about 3.5GB give or take) that's being already taken up by Android.
    motog3user101 likes this.
    07-10-2018 11:09 AM
  7. Rukbat's Avatar
    Newer phones actually reserve two copies of space for the system - and two copies of the space for the vendor (manufacturer+carrier) junk.

    That "36.5GB" you see is what's called 32GB (it's actually 36.5gB - notice the case - 1gB = 1,000*1,000*1,000 bytes. 1GB = 1,024*1,024*1,024 bytes. The 3.64 is not included in the 4.54, but it is included in the "32GB" of the phone.

    What you have available to you, of that 32GB, is 4.54GB. And you've used 4.19 of it already, in apps, data that the apps are keeping, music, pictures, videos, cache, etc. Cache is the space temporarily used while an app (user or system) is running, but if you use the Home button when you're finished with an app, that space is never cleared - the app is considered running. When you restart the phone, the app loses its connection to its data in cache, but the space is still allocated (to nothing), so the only way you can clear it is to clear cache. (System cache, which is cache used by Android itself, and by various Linux apps, is cleared from recovery - but that's not space you can use.)
    motog3user101 likes this.
    07-10-2018 11:47 AM

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