[Samsung Galaxy S7 Questions and Answers] ag123:
i've got pretty much a rather 'new' (i.e. started with only the base rom pretty much) sam s7 930fd, after i upgraded it to oreo gets it rooted, install titanium backup, i started removing some bloaware apps (e.g. facebook et.al.)

However, after i've removed the bloatware, i'm rather surprised that under settings > device management it shows 10.5 GB used out of 32 GB available. i.e. one third of the storage is 'gone' while i hardly had any other apps installed other than the base rom and upgrade to oreo

hence i go about doing an adb shell from the pc and start checking

# df -k
Filesystem 1K-blocks Used Available Use% Mounted on
rootfs 1660424 15752 1644672 1% /
tmpfs 1806128 1292 1804836 1% /dev
/dev/block/sda18 25723972 3158848 22565124 13% /dev/block/supersu/daemonsu
/dev/block/sda18 25723972 3158848 22565124 13% /dev/block/supersu/su
/dev/block/sda18 25723972 3158848 22565124 13% /dev/block/supersu/sukernel
/dev/block/sda18 25723972 3158848 22565124 13% /dev/block/supersu/supersu
tmpfs 1811384 0 1811384 0% /mnt
tmpfs 1811384 0 1811384 0% /mnt/secure
tmpfs 49258992 1764944 47494048 4% /mnt/secure/asec
/dev/block/vold/public:179,1 49258992 1764944 47494048 4% /mnt/secure/asec
/data/media 25723972 3158848 22565124 13% /mnt/runtime/default/emulated
/data/media 25723972 3158848 22565124 13% /mnt/runtime/read/emulated
/data/media 25723972 3158848 22565124 13% /mnt/runtime/write/emulated
/dev/block/vold/public:179,1 49258992 1764944 47494048 4% /mnt/media_rw/5C52-6601
/mnt/media_rw/5C52-6601 49258992 1764944 47494048 4% /mnt/runtime/default/5C52-6601
/mnt/media_rw/5C52-6601 49258992 1764944 47494048 4% /mnt/runtime/read/5C52-6601
/mnt/media_rw/5C52-6601 49258992 1764944 47494048 4% /mnt/runtime/write/5C52-6601
/dev/block/dm-0 7180 5360 1820 75% /mnt/asec/org.brandroid.openmanager-1
/dev/block/sda14 4299884 3778936 520948 88% /system
/dev/block/sda15 197472 23428 174044 12% /cache
/dev/block/sda18 25723972 3158848 22565124 13% /data
/dev/block/mmcblk0p2 13671512 34224 13637288 1% /data/sdext2
/dev/block/sda3 16048 2468 13580 16% /efs
/dev/block/sda13 5032 44 4988 1% /persdata/absolute
/dev/block/sdd1 1936 552 1384 29% /cpefs
tmpfs 1806128 1292 1804836 1% /sbin
/dev/block/sda18 25723972 3158848 22565124 13% /sbin/daemonsu
/dev/block/sda18 25723972 3158848 22565124 13% /sbin/su
/dev/block/sda18 25723972 3158848 22565124 13% /sbin/sukernel
/dev/block/sda18 25723972 3158848 22565124 13% /sbin/supersu
tmpfs 1811384 0 1811384 0% /storage
/data/media 25723972 3158848 22565124 13% /storage/emulated
/mnt/media_rw/5C52-6601 49258992 1764944 47494048 4% /storage/5C52-6601
tmpfs 1811384 0 1811384 0% /storage/self

as it turns out, only 25 GB is allocated to /data, the rest seemed to be distributed elseswhere e.g. root partition mount point

/mnt/media_rw/5C52-6601 is an external sd card, so is /dev/block/mmcblk0p2 i think which i use for link-to-sd.

and out of that 25 GB allocated to data about 3GB is used (pretty reasonable, i think gapps lives here, i kept most of the gapps dispite the bloat)

however, 32 GB - 25 GB is 7GB and this 'missing' 7GB didn't really seem to be found anywhere. i.e. after adding up the storage ex of data it didn't seem to add up to this 7GB i.e. the root partition etc only consume a portion of this 7GB

i'm finally tempted to purchase a bigger (newer) device given this situation. link-to-sd still works with oreo just that the 2nd slot is used for either micro sd card or a sim card, you can't have both. This may be a big limitation given the storage capacity limits and possibly the need to use the 2nd sim slot.

is it the same for your device or any comments about the storage etc?

thanks in advance