users] A confuse of using rbd image disk with kvm
Hi
Ceph uses thin-provisioning so it will not allocate the full block device
when you create it with qemu-img.
When you write to the data it then allocates the block devices.
However, you can enable TRIM/DISCARD in the VM as per the documentation
Hi
Ceph uses thin-provisioning so it will not allocate the full block device
when you create it with qemu-img.
When you write to the data it then allocates the block devices.
However, you can enable TRIM/DISCARD in the VM as per the documentation
here: http://ceph.com/docs/next/rbd/qemu-rbd/ - t
