thanks!
any chance to get retrieve this information for automated/script based
processing ?
roland
Am 03.01.22 um 00:12 schrieb Andy Smith:
Hi Roland,
On Sun, Jan 02, 2022 at 08:00:30PM +0100, Roland wrote:
if i have a logical sector/block "x" on a lvm logical volume , is there
a way to easily calculate/determine (optimally by script/cli) the
corresponding physical sector of the physical device it belongs to and
the extent number of the appropiate pv/vg where it resides ?
lvdisplay --maps /path/to/lv
tells you all the mappings of logical extents within the LV to
physical extents within the PV.
pvdisplay --units s /dev/yourpv | grep 'PE Size'
tells you the size of a physical extent in sectors.
Between those you can work out the sector number on the physical
device for a sector number on a logical volume.
Cheers,
Andy
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