Hello, I am a bit surprised to read this: "Device-mapper allows you, without massive data copying: *) To create snapshots of any block device [...]" here: http://www.kernel.org/doc/Documentation/device-mapper/snapshot.txt Isn't that at least misleading? Is it really possible to create a snapshot of e.g. /dev/sda5 without creating an *additional* device as snapshot origin? I export LVs to a VM where they appear as regular disks so that I cannot use LVMs snapshot integration. Thus I create a dm device with a linear mapping to each of these disks and mount the dm device, not the disk. I just had the idea to create these dm layer devices as snapshot-origins from the start (instead of loading this target when a snapshot is really going to be created). Is there anything to be said against this? Is there any reason at all to use linear instead of snapshot-origin for devices with just one target (except for possible confusion)? Hauke -- ☺ PGP: 7D82 FB9F D25A 2CE4 5241 6C37 BF4B 8EEF 1A57 1DF5 (seit 2012-11-04) http://www.openpgp-schulungen.de/
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