Device storage status: df inside container vs in HostOS

Product support balenaOS
1

I made the mistake of using df . from the HostOS and luckily noticed that wasn’t correct before the storage filled up.

I’m want to confirm how to tell how full my device storage is from within a container. From the output of df it looks like the overall free storage (none) and shared-volume storage are the same:

Filesystem     1K-blocks    Used Available Use% Mounted on
none            29524956 1779628  26203260   7% /
tmpfs             495440       0    495440   0% /sys/fs/cgroup
/dev/mmcblk0p6  29524956 1779628  26203260   7% /eio-data
tmpfs             495440       0    495440   0% /tmp/resin
shm                65536       0     65536   0% /dev/shm
none              358448       0    358448   0% /dev

But from the HostOS I get:

devtmpfs                             358448       0    358448   0% /dev
/dev/disk/by-partuuid/81bdc010-02    306201  279319      6812  98% /mnt/sysroot/active
/dev/disk/by-label/resin-state        18803    8428      8942  49% /mnt/state
none                                 306201  279319      6812  98% /
tmpfs                                495440     160    495280   1% /dev/shm
tmpfs                                495440     864    494576   1% /run
tmpfs                                495440       0    495440   0% /sys/fs/cgroup
tmpfs                                495440       0    495440   0% /tmp
tmpfs                                495440      32    495408   1% /var/volatile
overlay                              495440      32    495408   1% /var/lib
overlay                              495440      32    495408   1% /var/cache
overlay                              495440      32    495408   1% /var/spool
overlay                              495440      32    495408   1% /srv
/dev/mmcblk0p1                        40314    8292     32023  21% /mnt/boot
/dev/mmcblk0p6                     29524956 1779888  26203000   7% /mnt/data

So if I want to know how much “free space” is available on the sd card of my raspberry pi, I should look at either

  • within container df / or df /eio-data (my shared volume)
  • within HostOS df /mnt/data
  • from the Diagnostics tab of the dashboard

Is this correct?

3

hey @jason10,

that’s correct. running df / from the container will report the free space from the data partition. it is the same as running df /mnt/data from host OS. The diagnostics tab is also a good place to get this info.

thanks,
Rahul