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

Roger James roger at beardandsandals.co.uk
Tue Jul 26 08:58:38 UTC 2022

See https://talk.manageiq.org/t/lvm-internals-structures-disk-layout/1328

On 26 July 2022 09:16:31 Marcin Owsiany <marcin at owsiany.pl> wrote:
> 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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> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

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