Where Did the Missing 800 GB of Storage Go?
Asked by
MellowPine47
I'm running CachyOS from a 2 TB SSD, but Dolphin reports only about 120 GB of free space. Filelight shows around 67 GB used when scanning the filesystem root, yet scanning my personal folder reports roughly 980 GB in use. I'm trying to determine what is consuming the remaining space. My storage layout includes an approximately 1.8 TB NVMe partition mounted at several locations, including /home, along with a separate 1 TB drive mounted at /home/sid/Daten.
Answers
Snapshots are another possibility, especially if the system uses filesystem snapshots. Check whether any snapshots exist and how much space they consume. Removing a few bootloader-related snapshots may not recover much space if the large files are elsewhere.
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The `lsblk` output shows that your 1 TB drive is mounted at `/home/sid/Daten`, while the 1.8 TB NVMe partition is mounted at `/home` and also appears at locations such as `/var/tmp`, `/var/log`, `/var/cache`, `/srv`, and `/root`. Because these are separate mount points, graphical disk analyzers can give confusing results or omit mounted directories. Check each filesystem individually with `df -h` and inspect the mount points separately.
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Start by checking the filesystem-level numbers rather than relying only on Filelight. Run `df -h` in a terminal. This will show the total, used, and available space for every mounted filesystem and may reveal that a separate mount is being counted differently.
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It’s also worth opening the 2 TB disk in a partition tool such as GParted and confirming that the entire drive is allocated. If there is a large unallocated region, it won’t appear in Filelight or as usable space in the file manager.
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