On 9/28/2010 4:49 PM, Heinz Mauelshagen wrote: > > These are 2 new device mapper targets "thinp" and "thinp-dev" > implemented in one module, which allow for thin provisioning of storage > on a single host from a storage pool to an arbitrary amount of devices. How is this different than snapshotting a zero target? > +Create an ext4 filesystem on the thin provisioned device: > +mkfs -t ext4 /dev/mapper/thinp1 FYI, that tends to spend a lot of time writing hundreds of mb of zeros to the inode tables, allocating chunks from the backing store. You might want to add -E lazy_itable_init to stop that. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel