Hi, I'm aware that thin provisioning is not yet production ready (no metadata resize) - but is there a way to recover from thin pool failure when pool metadata was filled up? I did setup 1.95T thin pool and after some usage pool metadata (128MB) was filling up to 99,08% - so all pool thin volumes went into read-only state. Problem is that I cannot find a way in order to recover from this failure - eg also unable to delete/erase thin volumes and pool - only option seems to be full disk PV re-creation (eg OS re-install). Is there a way to recover or delete thin pool/volumes - without erasing other (normal) LVs in this Volume Group? For example dmsetup remove didn't help. Some diagnostic output: lvs -a -o+metadata_percent dm_report_object: report function failed for field data_percent --- REPEATABLE MSG --- dm_report_object: report function failed for field data_percent LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert Meta% pool VolGroupL0 twi-i-tz 1,95t 75,28 99,08 [pool_tdata] VolGroupL0 Twi-aot- 1,95t [pool_tmeta] VolGroupL0 ewi-aot- 128,00m root VolGroupL0 -wi-ao-- 10,00g swap VolGroupL0 -wi-ao-- 16,00g thin_backup VolGroupL0 Vwi-i-tz 700,00g pool thin_storage VolGroupL0 Vwi---tz 900,00g pool thin_storage-snapshot1 VolGroupL0 Vwi-i-tz 700,00g pool thin_storage thin_storage-snapshot106 VolGroupL0 Vwi-i-tz 900,00g pool thin_storage thin_storage-snapshot130 VolGroupL0 Vwi-i-tz 900,00g pool thin_storage thin_storage-snapshot154 VolGroupL0 Vwi-i-tz 900,00g pool thin_storage thin_storage-snapshot178 VolGroupL0 Vwi-i-tz 900,00g pool thin_storage thin_storage-snapshot2 VolGroupL0 Vwi-i-tz 700,00g pool thin_storage thin_storage-snapshot202 VolGroupL0 Vwi-i-tz 900,00g pool thin_storage dmsetup table VolGroupL0-thin_storage--snapshot2: VolGroupL0-thin_storage--snapshot178: VolGroupL0-swap: 0 33554432 linear 8:2 41945088 VolGroupL0-thin_storage--snapshot1: VolGroupL0-root: 0 20971520 linear 8:2 20973568 VolGroupL0-thin_storage--snapshot130: VolGroupL0-pool: VolGroupL0-thin_backup: VolGroupL0-thin_storage--snapshot106: VolGroupL0-thin_storage--snapshot154: VolGroupL0-pool-tpool: 0 4194304000 thin-pool 253:2 253:3 1024 0 0 VolGroupL0-pool_tdata: 0 2097152000 linear 8:2 75499520 VolGroupL0-pool_tdata: 2097152000 2097152000 linear 8:2 2172913664 VolGroupL0-pool_tmeta: 0 262144 linear 8:2 2172651520 VolGroupL0-thin_storage--snapshot202: lvremove -f VolGroupL0/pool Thin pool transaction_id=640, while expected: 643. Unable to deactivate open VolGroupL0-pool_tdata (253:3) Unable to deactivate open VolGroupL0-pool_tmeta (253:2) Failed to deactivate VolGroupL0-pool-tpool Failed to resume pool. Failed to update thin pool pool. -- ---------------------------------------------- Andres Toomsalu, andres@active.ee _______________________________________________ linux-lvm mailing list linux-lvm@redhat.com https://www.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
