On Jun 20, 2011, at 9:56 AM, Kwan Lowe kwan.lowe@gmail.com wrote:
On Thu, Jun 16, 2011 at 8:59 AM, Les Mikesell lesmikesell@gmail.com wrote:
There is no reason that should be true. Copying 20GB out of an LV should take exactly the same amount of time as copying 20GB out of a file.
What about the destination? Wouldn't it likely be harder to find a place to put the LV copy than space to write a file? Or can you copy back and forth?
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I just copy the raw filesystem directly to the remote raw filesystem with dd over ssh. If needed you can dd the entire partition to a file also.
With LVMs you can also mirror the LV across multiple LUNs, break the mirror, then move the other LUN to another system.
You might have better performance using Clonezilla over ssh then dd.
-Ross