> Dne 21. 09. 20 v 10:51 Roy Sigurd Karlsbakk napsal(a): >> Hi all >> >> I have an ssd hooked up to my system to do some caching of the raid-6 array. >> Now, that SSD isn't very new and has started developing some smart errors, so I >> thought I'd just remove it and find a nice recycle bin for it. However, this >> fails. > > Hmm - cache isn't yet very easy to use once you start to have faulty devices > in your device stack Well, that's why I want to replace it ;) >> This is Debian Buster (latest) with kernel 5.4 and lvm 2.03.02(2) >> >> Any idea how to get rid of this? >> >> # lvconvert --uncache data/data >> Unknown feature in status: 8 2488/262144 128 819192/819200 57263288 35277148 >> 19955332 9916661 0 1 1 3 metadata2 writethrough no_discard_passdown 2 >> migration_threshold 2048 smq 0 rw - > > > However since you have 'writethrough' cache mode - it should be possible to > use 'lvconvert --uncache --force' # lvconvert --uncache --force data/data Unknown feature in status: 8 2484/262144 128 819198/819200 57470386 35323243 19987362 9940326 0 0 1 3 metadata2 writethrough no_discard_passdown 2 migration_threshold 2048 smq 0 rw - Flushing 1 blocks for cache data/data. Unknown feature in status: 8 2484/262144 128 819198/819200 57439248 35307947 19981793 9938992 0 0 1 3 metadata2 writethrough no_discard_passdown 2 migration_threshold 2048 cleaner 0 rw - Flushing 1 blocks for cache data/data. Unknown feature in status: 8 2484/262144 128 819198/819200 57439248 35307947 19981793 9938992 0 0 1 3 metadata2 writethrough no_discard_passdown 2 migration_threshold 2048 cleaner 0 rw - (et cetera et cetera ad infinitum) > But I'm somehow confused how you can have any dirty blocks in this case ?? So am I > lvm2 2.03.02 version was somewhat experimental release - so I've recommend > something newer - which will also properly parse newer status output from > newer kernel dm-cache module. Well, that's weird - debian is usually rather conservative on its packages in a stable release. Are you sure? I also updated to a backported kernel 5.7 without any change. Vennlig hilsen roy -- Roy Sigurd Karlsbakk (+47) 98013356 http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- Hið góða skaltu í stein höggva, hið illa í snjó rita. _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
