Hello!

We've got Hyper-V 2012r2 and CentOS 6.6 running in VM.

We have web-server running on it. And in fact it uses space:

df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/vg_bitrix2-lv_root
                       50G  3,7G   43G   8% /
tmpfs                 1,9G     0  1,9G   0% /dev/shm
/dev/sda1             477M   46M  406M  11% /boot
/dev/mapper/vg_bitrix2-lv_home
                      439G  101G  316G  25% /home

But vmdk file in Hyper-V weights 300Gb.

I tried 

cd / ; cat /dev/zero > zero.fill ; sync ; sleep 1 ; sync ; rm -f zero.fill

And after that:

Mount-VHD 'D:\Hyper-V\bitrix2\Virtual Hard Disks\bitrix2.vhdx' -ReadOnly
Optimize-Vhd -path 'D:\Hyper-V\bitrix2\Virtual Hard Disks\bitrix2.vhdx' -Mode Full
Dismount-VHD 'D:\Hyper-V\bitrix2\Virtual Hard Disks\bitrix2.vhdx'

But it doesn't help..Can anyone help us with the problem?

Hi Greg IT,

You must using the dynamic virtual disk, if yes, please refer the following article to compact the vm disk.

Compacting a Dynamically Expanding virtual hard disk in Windows Server 2012

http://blogs.technet.com/b/askcore/archive/2012/09/20/compacting-a-dynamically-expanding-virtual-hard-disk-in-windows-server-2012.aspx

Best Regards,