Disk drive space not adding up on default install

[nedwards]

I have a system that has a 1 TB drive and have installed proxmox 5.2 with default settings on the installation.

I am trying to understand how the "drives" work.
When I navigate to the web admin page and select the Datacenter it shows three things in the main display.
One is the node and then two storage types, local and local-lvm.

If I double click the node it shows pve /dev/sda3 with 98% usage with size 931GiB and 15.99GiB free.
What is this supposed to indicate? Does this mean proxmox has taken some chunk of the drive for use with eventual VM creation? Why is 15.99 free? Why not use it all?... if it is for VM creation at a later time.

If i double click the local "drive" it shows that 1.53GiB is used of 93.99GiB.
If I double click the local-lvm "drive" it shows 0 B used of 794.79GiB.
Where were the sizes of these determined?
Why do they not add up to the full 1TB... or 931 GiB?


I'm just trying to understand how everything is allocated and used but numbers are not adding up?
If I ssh in to the machine and run df I get
Filesystem 1K-blocks Used Available Use% Mounted on
udev 16414140 0 16414140 0% /dev
tmpfs 3293632 9256 3284376 1% /run
/dev/mapper/pve-root 98559220 1607836 91901836 2% /
tmpfs 16468144 40560 16427584 1% /dev/shm
tmpfs 5120 0 5120 0% /run/lock
tmpfs 16468144 0 16468144 0% /sys/fs/cgroup
/dev/fuse 30720 16 30704 1% /etc/pve

When I add the 1K blocks together and convert to GB I get 0.1408 GB.

Can someone explain how the different windows in the admin web interface relate to the actual hard drive space and how the ssh environment is also related?

Thanks for any help.

 

[wolfgang]

Hi

If I double click the node it shows pve /dev/sda3 with 98% usage with size 931GiB and 15.99GiB free.

I think you mean the tab LVM under Disks?

This shows that your LVM is fully allocated what is normal with LVM-Thin what is used as default in Proxmox VE.
It is only allocated not used.

If i double click the local "drive" it shows that 1.53GiB is used of 93.99GiB.

This is the rootfs / where Proxmox VE is installed.
Here on this partition os the storage "local" located. "local" is located under /var/lib/vz path. Here you can save images and backups.

If I double click the local-lvm "drive" it shows 0 B used of 794.79GiB.

This is the LVM-thin pool where you can put your guest images (vdisk).

more information see
https://pve.proxmox.com/wiki/Storage