On Fri, Oct 8, 2021 at 9:57 AM Ming Hung Tsai <mtsai@xxxxxxxxxx> wrote: > > You could simply detach the cache: > sudo lvconvert vg0/tpg1-wdata --splitcache Unfortunately this one didn't work: $ sudo lvconvert vg0/tpg1-wdata --splitcache Check of pool vg0/wdata_cachepool_cpool failed (status:1). Manual repair required! Failed to activate vg0/tpg1-wdata to flush cache. > Or alternatively, reinitialize the cache by swapping the metadata with > a blank one, which bypasses cache_check examination and then steps to > metadata formatting: > sudo lvcreate vg0 --size 40m --name cmeta_bak > sudo lvconvert vg0/wdata_cachepool_cpool --swapmetadata --poolmetadata cmeta_bak Thanks a lot! This one did work and I was able to activate the volume. I tried doing something like this earlier but I used wrong syntax (I missed the --swapmetadata flag). > BTW, could you help provide the reproducing steps? I guess that you > performed a power cut soon after creating the cache. Thanks. Unfortunately, I don't have clear reproducing steps. As you've guessed correctly - the power event has happened shortly (the same day) after I created the cached volume. IIRC the volume hasn't even been used at all so the cache would be empty. If I manage to reproduce it I will report back here. Thanks for all your help! Krzysztof Chojnowski _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
