Thursday, July 28, 2016

centos7 - df shows 2 GB size fdisk shows 60 GB

My newly purchased KVM based VPS (virtual server) running Centos 7 shows a - to my mind - odd result for the df -h command versus fdisk -l and ssm list.



I've put the output of various disk related commands below.



What I expected to see was a Size of roughly 60 GB on /dev/vda1 when I did df -h



ssm shows that the difference is between Volume size and FS Size.




What am I missing?



# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/vda1 2.0G 1.1G 754M 60% /
devtmpfs 912M 0 912M 0% /dev
tmpfs 921M 0 921M 0% /dev/shm
tmpfs 921M 17M 904M 2% /run
tmpfs 921M 0 921M 0% /sys/fs/cgroup

tmpfs 921M 17M 904M 2% /etc/machine-id


Seems I only have 2 GB on the / mount.



However, fdisk shows this:
# fdisk -l



Disk /dev/vda: 64.4 GB, 64424509440 bytes, 125829120 sectors
Units = sectors of 1 * 512 = 512 bytes

Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk label type: dos
Disk identifier: 0x000dcb5c

Device Boot Start End Blocks Id System
/dev/vda1 * 2048 121632383 60815168 83 Linux
/dev/vda2 121632384 125826687 2097152 82 Linux swap / Solaris



ssm gives this:



# ssm list
--------------------------------
Device Total Mount point
--------------------------------
/dev/vda 60.00 GB PARTITIONED
/dev/vda1 58.00 GB /
/dev/vda2 2.00 GB SWAP
--------------------------------

-------------------------------------------------------------------
Volume Volume size FS FS size Free TypeMount point
-------------------------------------------------------------------
/dev/vda1 58.00 GB ext4 1.97 GB 851.11 MB part/
-------------------------------------------------------------------

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