Open Stack

Hi all,
i have deploy one instance and used flavor that have 20G Disk with 
ephermal 10G
when instance up, i check with df -h command, and it show like this (LVM)
*Filesystem            Size  Used Avail Use% Mounted on**
**/dev/mapper/VolGroup-lv_root**
**                               2.5G  1.7G  753M  70% /**
**tmpfs                     499M     0  499M   0% /dev/shm**
**/dev/vda1             485M   33M  427M   8% /boot*

The size is just 2.5G

when i check with #fdisk -l
it show actual value of flavor
*Disk /dev/vda: 21.5 GB, 21474836480 bytes*

how can this happen? it happen to instance with no LVM on it too.

please help

-- 
Regards,
Mahardhika Gilang
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