1. Android Central Question's Avatar
    Hi all,

    I have a OnePlus 5T with 128gb storage on 8.1 Oreo, but currently have only 3gb available? I know I have a lot on there, but when I run ES filemanager SD analysis I can see where 72gb has gone, but there is nearly 40gb unaccounted for? I know the Android system takes up space which can't be viewed + apps, but even so, 40gb?

    Is there anyway of finding out where all my other storage is being used?

    Any ideas?

    Thanks in advance.
    M
    06-14-2018 11:23 AM
  2. B. Diddy's Avatar
    Welcome to Android Central! Try the DiskUsage app.
    06-14-2018 12:35 PM
  3. Rukbat's Avatar
    The storage is partitioned (like a desktop with one hard drive but C and D drives - two partitions on one drive). The only free storage you have is on a partition named userdata - it doesn't matter if, say, system has 20GB free - you can't store anything there - that's for the system. The same thing for the recovery partition, the bootloader partition, etc. DiskUsage shows you userdata better than the internal "storage" in Settings does, but it's still only the userdata partition. On a 128GB phone, you do not get 128GB of userdata space. (As I remember, in the 128GB Pixel 2, there was about 118GB free when I first got the phone - 10GB was in use by other partitions. Different manufacturers partition storage differently.)
    B. Diddy likes this.
    06-14-2018 01:05 PM
  4. Themitchx's Avatar
    Thanks for the replies guys, makes sense although is a bit cheeky of the manufacturers, if you ask me. I've installed diskusage and it looks like I only have 111gb of usable space.
    06-15-2018 04:00 PM
  5. Scienceguy Labs's Avatar
    The Google app called Files Go might help you see what's being used too. It'll also hello you delete anything that's taking up space needlessly.
    06-15-2018 04:20 PM
  6. B. Diddy's Avatar
    On a 128GB phone, you do not get 128GB of userdata space. (As I remember, in the 128GB Pixel 2, there was about 118GB free when I first got the phone - 10GB was in use by other partitions. Different manufacturers partition storage differently.)
    Yep, I can confirm this. Phones which are capable of seamless updates (which allows you to continue using the phone while the firmware updates in the background) have duplicate system partitions. So a single system partition actually takes 5.5 GB, but since it's duplicated, it takes up 11 GB total. I'm not sure if the OP5T supports seamless updates -- I saw this article saying that the OP6 was updated to support it, but no mention of the 5T. OnePlus 5, OnePlus 5T updated to Oxygen OS 5.1.2 | BGR India. If it doesn't support seamless updates, then a lot of that extra space taken up could be due to bloatware.
    06-16-2018 02:23 PM
  7. Rukbat's Avatar
    I think the 5 was too early to break into A and B systems. "Think" - I'm not certain.
    06-16-2018 06:02 PM

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