Hi! I am running CentOS 7 on a machine with SSD, and trying to run the fstrim command. KVM is installed on a logical volume like this: [#] lvcreate -L 300G -n lv_vm1 VolGroup [#] mkfs.xfs /dev/VolGroup/lv_vm1 [#] mkdir /mnt/b_vm_1 [#] mount /dev/VolGroup/lv_vm1 /mnt/b_vm_1 [#] virt-install --name=vm1.mydomain.com \ --disk path=/dev/VolGroup/lv_vm1 \ --ram=8192 --os-type=linux --os-variant=rhel7 \ --vcpus=8 --check-cpu \ --network bridge:br0 --nographics \ --location=/usr/local/src/linux_isos/CENTOS7/CentOS-7.0-1406-x86_64-Minimal.iso \ --extra-args 'ks=http://www.mydomain.com/anaconda-ks.cfg ksdevice=eth0 \ ip=192.168.19.2 netmask=255.255.255.192 dns=8.8.8.8 gateway=192.168.19.1 console=ttyS0,115200n8 serial’ The file system disk space usage (the relevant parts) looks like this: [#] df -h …. /dev/mapper/VolGroup-lv_usr 9,8G 1,6G 8,2G 16% /usr /dev/mapper/VolGroup-lv_vm1 300G 33M 300G 1% /mnt/b_vm_1 ... After: - Installing the virtual machine - Trying that it works - Turning it off - Unmounting the logical volume I run the following command at the host machine: [#] fstrim -v /usr The command works fine, and I am able to display the content of the /user folder. BUT when I start up the virtual machine from the host again: [#] virsh start vm1.bergersen1.com and access the console (that worked before I ran the fstrim command) via: [#] virsh console vm1.bergersen1.com . . . the console just stalls, and the virtual machine is not working. Is there a way I can run fstrim on the host machine without destroying the virtual machine? Thanks for input! Best regards, Richard Taubo _______________________________________________ virt-tools-list mailing list virt-tools-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/virt-tools-list