Hello Zdenek! Thank you for your reply! On Mittwoch, 9. Dezember 2020 12:05:13 CET Zdenek Kabelac wrote: > Dne 06. 12. 20 v 22:01 Dennis Schridde napsal(a): > > The live system I am running these commands from is a Fedora 33: > > > > $ uname -a > > Linux localhost-live 5.8.15-301.fc33.x86_64 #1 SMP Thu Oct 15 16:58:06 UTC > > 2020 x86_64 x86_64 x86_64 GNU/Linux > > > > $ sudo lvm version > > > > LVM version: 2.03.10(2) (2020-08-09) > > Library version: 1.02.173 (2020-08-09) > > Driver version: 4.42.0 > > It seems you are using 'cvol' instead of 'cpool' solution which has been > evolving and you will need a newer lvm2 version. > > If you want to using caching with the version of lvm2 you have - you will > need to use cpools (which are a bit faster anyway). 2.03.10 is the latest released version of lvm2. So I would have to use the Git main branch instead? A bit confusing is that the lvmcache(7) manpage of lvm2 2.03.10 suggests to create a cachevol as the first option: $ lvconvert --type cache --cachevol fast vg/main Should this be adjusted, if cachevols are not yet fully supported in 2.03.10? How would you proceed to repair this cache? I can recreate it as a cachepool, but first I need to gain back access to the data, i.e. get into a state where I can --uncache. --Dennis
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