On 04/04/2018 07:30 PM, Damian Dabrowski wrote: > Hello, > > I wonder if it is any way to run `trimfs` on rbd image which is > currently used by the KVM process? (when I don't have access to VM) > > I know that I can do this by qemu-guest-agent but not all VMs have it > installed. > > I can't use rbdmap too, because most images don't have distributed > filesystems. It's mostly ext4/xfs so I can't mount them in two places at > same time. > > I would be grateful for any help. >
No, you can not. If you map and mount a filesystem twice you will corrupt the data on there. Same goes when you are going to fstrim, you will probably break/corrupt data on the system. Do not attempt it. Shut down the VM and then do the fstrim. Wido > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
