Hello, I „BCache“ a BTrFS RAID with 4 hard drives. Normal use seems to work good. I have no problems. I have the BTrFS RAID mounted through „/dev/bcache3“. But when I remove a disk (simulating it’s broken), BTrFS doesn’t inform me about a „missing disk“: # btrfs fi show Label: 'RAID' uuid: d0e2e2eb-2df7-454f-8446-5213cec2de3c Total devices 4 FS bytes used 12.55GiB devid 1 size 465.76GiB used 6.00GiB path /dev/bcache3 devid 2 size 931.51GiB used 6.00GiB path /dev/bcache1 devid 3 size 596.17GiB used 6.00GiB path /dev/bcache2 devid 4 size 465.76GiB used 6.00GiB path /dev/bcache0 One of these (actually „/dev/bcache3“ or „/dev/sde“) should be broken or missing. I can’t make a „btrfs device delete missing“ either. It replies „ERROR: not a btrfs filesystem:“. It doesn’t matter, if I use „/dev/bcacheX“ or „/dev/sdX“ for that. And if I make a „btrfs device delete missing /mnt/raid“, it replies: „ERROR: error removing device 'missing': no missing devices found to remove“. It looks to me, as if BCache hides these informations from BTrFS. Is this possible? What do you think? Thanks -- 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
