> On 09 Jan 2015, at 01:37, Dennis Jacobfeuerborn <[email protected]> wrote: > > On 09.01.2015 01:11, Richard Taubo wrote: >> 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’ >> > > Why do you format and mount /dev/VolGroup/lv_vm1 and then specify it as > a disk for the VM? That looks extremely broken. You should only create > the volume with lvcreate and then call virt-install otherwise you will > probably end up with all kinds of corruption.
I wasn’t sure how to set this up to begin with, and was thinking that virt-install needed a file system to write to. Since things were working, I didn’t question the setup . . . . After doing as you suggested, and running fstrim on the host, I don’t have trouble with the VM anymore. Thanks! :-) Best regards, Richard Taubo _______________________________________________ virt-tools-list mailing list [email protected] https://www.redhat.com/mailman/listinfo/virt-tools-list
