On Tue, 26 Sep 2017, Duncan wrote:
consider it worth having. No backups means you are defining the data to be of less value than the time/trouble/resources to make the backup, so loss is never a big deal, because either you either have a backup if you
I know importance of backups, and this problematic machine are backups (I still have originals if this crashes)
That's why btrfs is listing one of the md components as part of the filesystem -- it obviously has the same btrfs UUID as the md device that you actually created the filesystem on.
# for I in c d e f g h i j k l n o p q r ; do blkid /dev/sd$I ; done ; blkid /dev/md3 /dev/sdc: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="cffdd56f-f8d6-5191-bd7b-d528018e1106" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdd: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="5d586780-d22f-a68b-769a-5c1bfe9491fb" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sde: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="5777fb6a-7156-3a70-5384-789ac8dd5656" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdf: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="f017f1c7-df26-9279-ccb9-002b8ce1edd9" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdg: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="0de626d7-f754-e53b-792b-3217f6cb63d2" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdh: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="036e8679-2c6f-4a48-601e-1379cdd0a3eb" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdi: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="f9cb6c12-dc73-92b9-363c-fafb5b0efc81" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdj: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="7f3f09d8-d09d-c263-b292-a9d5d004c7ce" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdk: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="07bde9df-8f5b-518d-78fa-3cff3a950eb4" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdl: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="1895c727-e8b2-463a-4f67-e260ee6e98ff" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdn: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="72a6d25c-a7c0-3329-5f15-8abb7c3edbdb" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdo: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="3580f74a-1605-3e5e-9396-9e929eaeb6fc" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdp: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="006883cb-76f6-2967-1a5a-225d258d72b0" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdq: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="b72b2bc3-d983-ed27-f64a-fea9b27e42bf" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/sdr: UUID="d68e26ee-baeb-f40d-c579-2d506e18d378" UUID_SUB="bd7b687d-2882-3709-abe4-03f1a1010a67" LABEL="dyn-50:3" TYPE="linux_raid_member" /dev/md3: UUID="84a31ba6-d22d-4653-b071-5525dbdfe561" UUID_SUB="36cf435b-e589-45dd-99a5-5efdb1439913" TYPE="btrfs" Those sd* devices are member of md, and seems they aren't equal with that md-device -- Ari Saastamoinen -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
