VPS Hard Disk Space Discrepancy

[Sesso]

How much swap do you have?


> On Oct 16, 2014, at 9:41 PM, Mark Phillips <mark at phillipsmarketing.biz> wrote:
> 
> 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% /boot
> 
> The 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?
> 
> Thanks,
> 
> Mark
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