[SOLVED] LVM `issue_discards` is disabled after upgrade from 7 to 8.

[Tony C]

issue_discards just controls whether the PV extents are discarded when an LV is removed. with a thin

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Thank you so much Fabian for that brilliant explanation. I tried googling around for an answer for ages but apart from the not needed on lv-thin LVs comments scattered about the place I got no further.