Missing disk space in my hardware server?

[JMoreno]

Hi,

I have the impression I am missing 1 TB. Please have a look to my hardware server disk usage on /dev/mapper/pve-data:

 root@pmox12:~# [COLOR=#0000ff]df -h[/COLOR]
Filesystem                   Size  Used Avail Use% Mounted on
udev                          10M     0   10M   0% /dev
tmpfs                        797M  400K  797M   1% /run
/dev/mapper/pve-root          95G  1.8G   88G   2% /
tmpfs                        5.0M     0  5.0M   0% /run/lock
tmpfs                        1.6G   47M  1.6G   3% /run/shm
[COLOR=#ff0000]/dev/mapper/pve-data         2.6T  2.6T   61G  [B]98%[/B] /var/lib/vz[/COLOR]
/dev/sda2                    495M  187M  282M  40% /boot
/dev/fuse                     30M  100K   30M   1% /etc/pve
pmox12:/var/lib/vz/nfs/pmox  2.6T  2.6T   61G  98% /mnt/pve/sv-NFS

But I get the foder size, I get:

root@pmox12:~# [COLOR=#0000ff]du -ch [/COLOR][COLOR=#ff0000]/var/lib/vz[/COLOR][COLOR=#0000ff] | grep total[/COLOR]
[COLOR=#ff0000][B]1.6T[/B]    total[/COLOR]

May you please help me understand what I am missing? Is there any way I can get back that 1 TB?

Thanks in advance.

Best regards.

 

[m.ardito]

are you running VMs with qcow2 disks? that could be thin provisioning...

Marco

 

[JMoreno]

Hi M.Ardito,

This server has no VMs stored. I use it as NFS server for ProxMox dumps. I installed ProxMox to be able to run VMs just in case of emergencies, but today it has no VMs.

Regards.

 

[JMoreno]

Folder content details:

root@pmox12:/var/lib/vz# [COLOR=#0000ff]du -ch /var/lib/vz[/COLOR]
[COLOR=#008000]4.0K    /var/lib/vz/images[/COLOR]
4.0K    /var/lib/vz/dump
4.0K    /var/lib/vz/lock
4.0K    /var/lib/vz/root
1.6T    /var/lib/vz/nfs/pmox/dump
60M     /var/lib/vz/nfs/pmox/template/iso
60M     /var/lib/vz/nfs/pmox/template
1.6T    /var/lib/vz/nfs/pmox
[COLOR=#ff0000]1.6T    /var/lib/vz/nfs[/COLOR]
[COLOR=#008000]4.0K    /var/lib/vz/private[/COLOR]
4.0K    /var/lib/vz/template/cache
4.0K    /var/lib/vz/template/qemu
4.0K    /var/lib/vz/template/iso
16K     /var/lib/vz/template
16K     /var/lib/vz/lost+found
4.0K    /var/lib/vz/backups/dump
8.0K    /var/lib/vz/backups
1.6T    /var/lib/vz
1.6T    total

As you may guess, I am using /var/lib/vz/nfs as my NFS exchange folder.

My server settings:

root@pmox12:~# [COLOR=#0000ff]pveversion --verbose[/COLOR]
proxmox-ve-2.6.32: 3.1-114 (running kernel: 2.6.32-26-pve)
pve-manager: 3.1-21 (running version: 3.1-21/93bf03d4)
pve-kernel-2.6.32-20-pve: 2.6.32-100
pve-kernel-2.6.32-19-pve: 2.6.32-95
pve-kernel-2.6.32-17-pve: 2.6.32-83
pve-kernel-2.6.32-22-pve: 2.6.32-107
pve-kernel-2.6.32-26-pve: 2.6.32-114
pve-kernel-2.6.32-11-pve: 2.6.32-66
pve-kernel-2.6.32-23-pve: 2.6.32-109
lvm2: 2.02.98-pve4
clvm: 2.02.98-pve4
corosync-pve: 1.4.5-1
openais-pve: 1.1.4-3
libqb0: 0.11.1-2
redhat-cluster-pve: 3.2.0-2
resource-agents-pve: 3.9.2-4
fence-agents-pve: 4.0.0-2
pve-cluster: 3.0-8
qemu-server: 3.1-8
pve-firmware: 1.0-23
libpve-common-perl: 3.0-8
libpve-access-control: 3.0-7
libpve-storage-perl: 3.0-17
pve-libspice-server1: 0.12.4-2
vncterm: 1.1-4
vzctl: 4.0-1pve4
vzprocps: 2.0.11-2
vzquota: 3.1-2
pve-qemu-kvm: 1.4-17
ksm-control-daemon: 1.1-1
glusterfs-client: 3.4.1-1

Thanks again.

 

[m.ardito]

under /var/lib/vz there could be also dumps, templates, iso.

I found this but not sure it applies here... http://www.cyberciti.biz/tips/freebsd-why-command-df-and-du-reports-different-output.html

Marco

 

[JMoreno]

Hi Marco,

As you can see in my previous post, all folders are empty expceto the NFS one...

I had a look to your link, but I think it does not apply here.

Regards.

 

[m.ardito]

which kind of usage has the nfs share? It seems that physically is 1.6TB but it reserves 2.6TB to the OS, as it's seen by df -h...

Marco

 

[JMoreno]

It used for ProxMox dumps:

[COLOR=#ff0000]1.6T[/COLOR]    /var/lib/vz/nfs/pmox/dump

And a single ISO file:

[COLOR=#ff0000]60M [/COLOR]    /var/lib/vz/nfs/pmox/template/iso