# df shows on btrfs wrong disk size **URL:** \ **Category:** SLES Configure-Administer\ **Created:** [March 23, 2016, 3:42pm UTC](https://forums.suse.com/t/df-shows-on-btrfs-wrong-disk-size/28025 "2016-03-23T15:42:29Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![dstabla](https://avatars.discourse-cdn.com/v4/letter/d/3e96dc/32.png) [@dstabla](https://forums.suse.com/u/dstabla)\ **Post date:** [March 23, 2016, 3:42pm UTC](https://forums.suse.com/t/df-shows-on-btrfs-wrong-disk-size/28025/1 "2016-03-23T15:42:29Z")
Hello, I hope someone can explain this behavior: I have a virtual machine (hypervisor ESXi 5.X), installed OS is SLES 12 SP 1 and the used filesystem is btrfs. I know that btrfs and df are showing different values for used and free space. But I don’t know how I should understand, that df shows a bigger partition then configured. The root partition is 28,5 GiB big and I get these values: - df - size 37GB sles12vm:~ # df -h Filesystem Size Used Avail Use% Mounted on /dev/sda2 37G 9.1G 19G 34% / devtmpfs 939M 0 939M 0% /dev tmpfs 948M 0 948M 0% /dev/shm tmpfs 948M 9.7M 938M 2% /run tmpfs 948M 0 948M 0% /sys/fs/cgroup /dev/sda2 37G 9.1G 19G 34% /var/tmp /dev/sda2 37G 9.1G 19G 34% /var/spool /dev/sda2 37G 9.1G 19G 34% /var/lib/pgsql /dev/sda2 37G 9.1G 19G 34% /var/crash /dev/sda2 37G 9.1G 19G 34% /tmp /dev/sda2 37G 9.1G 19G 34% /srv /dev/sda2 37G 9.1G 19G 34% /var/opt /dev/sda2 37G 9.1G 19G 34% /var/log /dev/sda2 37G 9.1G 19G 34% /var/lib/named /dev/sda2 37G 9.1G 19G 34% /var/lib/mailman /dev/sda2 37G 9.1G 19G 34% /usr/local /dev/sda2 37G 9.1G 19G 34% /home /dev/sda2 37G 9.1G 19G 34% /opt /dev/sda2 37G 9.1G 19G 34% /boot/grub2/x86\_64-efi /dev/sda2 37G 9.1G 19G 34% /boot/grub2/i386-pc - btrfs sles12vm:~ # btrfs filesystem show / Label: none uuid: 5e77d6a7-b282-49ba-9417-ccb688be3b02 Total devices 1 FS bytes used 8.44GiB devid 1 size 28.54GiB used 11.28GiB path /dev/sda2 So from where get’s df the additional 9~ GiB ? Sincerely, D. Stabla ---
**Author:** ![system](https://us1.discourse-cdn.com/flex022/uploads/suse/original/2X/5/5012ba89e3ffb5220dac47d5ea0ba032e2fe1cb6.png) [@system](https://forums.suse.com/u/system)\ **Post date:** [March 28, 2016, 7:30am UTC](https://forums.suse.com/t/df-shows-on-btrfs-wrong-disk-size/28025/2 "2016-03-28T07:30:20Z")
dstabla, It appears that in the past few days you have not received a response to your posting. That concerns us, and has triggered this automated reply. These forums are peer-to-peer, best effort, volunteer run and that if your issue is urgent or not getting a response, you might try one of the following options: - Visit [http://www.suse.com/support](http://www.suse.com/support) and search the knowledgebase and/or check all the other support options available. - Open a service request: [https://www.suse.com/support](https://www.suse.com/support) - You could also try posting your message again. Make sure it is posted in the correct newsgroup. ([http://forums.suse.com](http://forums.suse.com)) Be sure to read the forum FAQ about what to expect in the way of responses: [http://forums.suse.com/faq.php](http://forums.suse.com/faq.php) If this is a reply to a duplicate posting or otherwise posted in error, please ignore and accept our apologies and rest assured we will issue a stern reprimand to our posting bot… Good luck! Your SUSE Forums Team [http://forums.suse.com](http://forums.suse.com) ---
**Author:** ![abkumar](https://avatars.discourse-cdn.com/v4/letter/a/ec9cab/32.png) [@abkumar](https://forums.suse.com/u/abkumar)\ **Post date:** [March 28, 2016, 1:29pm UTC](https://forums.suse.com/t/df-shows-on-btrfs-wrong-disk-size/28025/3 "2016-03-28T13:29:36Z")
Could you please paste the output of the below command ? ```auto # btrfs filesystem usage / ``` ---
**Author:** ![dstabla](https://avatars.discourse-cdn.com/v4/letter/d/3e96dc/32.png) [@dstabla](https://forums.suse.com/u/dstabla)\ **Post date:** [June 3, 2016, 10:44am UTC](https://forums.suse.com/t/df-shows-on-btrfs-wrong-disk-size/28025/4 "2016-06-03T10:44:47Z")
Hello, sorry for the late reply. Output: sles12vm:~ # btrfs filesystem usage / Overall: Device size: 28.54GiB Device allocated: 18.92GiB Device unallocated: 9.62GiB Device missing: 0.00B Used: 16.47GiB Free (estimated): 10.97GiB (min: 6.16GiB) Data ratio: 1.00 Metadata ratio: 2.00 Global reserve: 320.00MiB (used: 0.00B) Data,single: Size:16.00GiB, Used:14.65GiB /dev/sda2 16.00GiB Metadata,DUP: Size:1.43GiB, Used:931.41MiB /dev/sda2 2.85GiB System,DUP: Size:32.00MiB, Used:16.00KiB /dev/sda2 64.00MiB Unallocated: /dev/sda2 9.62GiB Sincerely, D. Stabla ---
**Author:** ![Jens-U](https://avatars.discourse-cdn.com/v4/letter/j/d78d45/32.png) [@Jens-U](https://forums.suse.com/u/Jens-U)\ **Post date:** [June 6, 2016, 12:53pm UTC](https://forums.suse.com/t/df-shows-on-btrfs-wrong-disk-size/28025/5 "2016-06-06T12:53:12Z")
(sorry, wrong response)