[danudey]

My understanding is that performance on LVM drops dramatically after the first snapshot due to the way it handles CoW (synchronous writes on top of your async write). Is that no longer true, or only in certain circumstances?

It seems as though the way to go would be to take a 'snapshot', back it up, and then delete it immediately; is that right?

https://www.nikhef.nl/~dennisvd/lvmcrap.html

[mappu]

I think this complaint applies to the original LVM2 snapshots, not the new thin ones.