I signed up for a free VPS on Ohava - 20GB is what is advertised. When I logged into the system, df -h showed this:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/ubuntu--vg-root 6.6G 1.8G 4.6G 28% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 235M 4.0K 235M 1% /dev
tmpfs 50M 368K 49M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 246M 0 246M 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/vda1 236M 68M 156M 31% /boot
I queried to the support group, so they sent me instructions to add 10 more GB.
df now shows:
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/ubuntu--vg-root 17G 1.8G 14G 12% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 235M 4.0K 235M 1% /dev
tmpfs 50M 368K 49M 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 246M 0 246M 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/vda1 236M 68M 156M 31% /bootThe support groups said:
Our apologies on the confusion. This is a current bug in the
machines being spun up, but we definitely offer (and want to help you
get) the full amount of space. Every instance gets 20GB partitioned to
them. There is some overhead in some of the other partitions of disk
space so / won't ever show the full 20GB, as small parts of the 20GBs
are allocated elsewhere.
The instructions sent to you
are for extending the / partition an additional 10GB. Since there was
already some amount of storage there, the result after completing the
instructions (and the correction to the error that we made when we
originally sent you instructions on expanding the lvm volume..."sudo
lvextend -L+10G /dev/ubuntu-vg/root") should get you as close as
possible to 20GB (~18.75GB) on /root while allowing for the overhead.
I get the calculation of disk size issue, so a 20 GB drive is really only 18.63 GB. But shouldn't df show 18.63 GB and not 17 GB? Is the discrepancy (1.63 GB or 8.75% of the drive) due to formatting the disk and adding Ubuntu server?