[linux-lvm] Where are the data blocks of an LV?

[Marcin Owsiany]

Hello,

I know that it is possible to find where a given logical volume's extents
start on a PVs thanks to the information printed by lvdisplay --maps.

I was also able to experimentally establish that the actual data of an LV
starts one megabyte after that location. Is that offset documented
anywhere, or can I somehow discover it at runtime for a given LV?

regards,
Marcin
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