Description of problem: This is about the original intention of bug 1130329 and also what is mentioned in bug 877221. The device to be used in the repair when not specified should be the device that currently makes up part of the spanned raid image. # Manual attempt with allocate warn fault policy [root@host-115 ~]# lvs -a -o +devices /dev/sdd1: read failed after 0 of 4096 at 0: Input/output error /dev/sdd1: read failed after 0 of 4096 at 26838958080: Input/output error /dev/sdd1: read failed after 0 of 4096 at 26839048192: Input/output error /dev/sdd1: read failed after 0 of 4096 at 4096: Input/output error Couldn't find device with uuid xTPPbl-TQIN-o2xA-7qhV-rv1p-Vxb2-qAsVTE. LV VG Attr LSize Cpy%Sync Devices synced_spanned_primary_raid1_2legs_1 black_bird rwi-aor-p- 500.00m 100.00 synced_spanned_primary_raid1_2legs_1_rimage_0(0),synced_spanned_primary_raid1_2legs_1_rimage_1(0) [synced_spanned_primary_raid1_2legs_1_rimage_0] black_bird iwi-aor-p- 500.00m /dev/sdc1(1) [synced_spanned_primary_raid1_2legs_1_rimage_0] black_bird iwi-aor-p- 500.00m unknown device(0) [synced_spanned_primary_raid1_2legs_1_rimage_1] black_bird iwi-aor--- 500.00m /dev/sdg1(1) [synced_spanned_primary_raid1_2legs_1_rimage_1] black_bird iwi-aor--- 500.00m /dev/sda1(0) [synced_spanned_primary_raid1_2legs_1_rmeta_0] black_bird ewi-aor-r- 4.00m /dev/sdc1(0) [synced_spanned_primary_raid1_2legs_1_rmeta_1] black_bird ewi-aor--- 4.00m /dev/sdg1(0) [root@host-115 ~]# lvconvert --yes --repair black_bird/synced_spanned_primary_raid1_2legs_1 /dev/sdd1: read failed after 0 of 4096 at 0: Input/output error /dev/sdd1: read failed after 0 of 4096 at 26838958080: Input/output error /dev/sdd1: read failed after 0 of 4096 at 26839048192: Input/output error /dev/sdd1: read failed after 0 of 4096 at 4096: Input/output error Couldn't find device with uuid xTPPbl-TQIN-o2xA-7qhV-rv1p-Vxb2-qAsVTE. Faulty devices in black_bird/synced_spanned_primary_raid1_2legs_1 successfully replaced. ### So above, the device that should have been used was /dev/sdc1. Instead /dev/sdb1 is used. /dev/sdc1 would have worked if it had been specified on the lvconvert cmd line, which makes this a low priority bug. [root@host-115 ~]# lvs -a -o +devices /dev/sdd1: open failed: No such device or address Couldn't find device with uuid xTPPbl-TQIN-o2xA-7qhV-rv1p-Vxb2-qAsVTE. LV VG Attr LSize Cpy%Sync Devices synced_spanned_primary_raid1_2legs_1 black_bird rwi-aor--- 500.00m 100.00 synced_spanned_primary_raid1_2legs_1_rimage_0(0),synced_spanned_primary_raid1_2legs_1_rimage_1(0) [synced_spanned_primary_raid1_2legs_1_rimage_0] black_bird iwi-aor--- 500.00m /dev/sdb1(1) [synced_spanned_primary_raid1_2legs_1_rimage_1] black_bird iwi-aor--- 500.00m /dev/sdg1(1) [synced_spanned_primary_raid1_2legs_1_rimage_1] black_bird iwi-aor--- 500.00m /dev/sda1(0) [synced_spanned_primary_raid1_2legs_1_rmeta_0] black_bird ewi-aor--- 4.00m /dev/sdb1(0) [synced_spanned_primary_raid1_2legs_1_rmeta_1] black_bird ewi-aor--- 4.00m /dev/sdg1(0) Version-Release number of selected component (if applicable): 2.6.32-616.el6.x86_64 lvm2-2.02.143-2.el6 BUILT: Wed Mar 16 08:30:42 CDT 2016 lvm2-libs-2.02.143-2.el6 BUILT: Wed Mar 16 08:30:42 CDT 2016 lvm2-cluster-2.02.143-2.el6 BUILT: Wed Mar 16 08:30:42 CDT 2016 udev-147-2.72.el6 BUILT: Tue Mar 1 06:14:05 CST 2016 device-mapper-1.02.117-2.el6 BUILT: Wed Mar 16 08:30:42 CDT 2016 device-mapper-libs-1.02.117-2.el6 BUILT: Wed Mar 16 08:30:42 CDT 2016 device-mapper-event-1.02.117-2.el6 BUILT: Wed Mar 16 08:30:42 CDT 2016 device-mapper-event-libs-1.02.117-2.el6 BUILT: Wed Mar 16 08:30:42 CDT 2016 device-mapper-persistent-data-0.6.2-0.1.rc5.el6 BUILT: Wed Feb 24 07:07:09 CST 2016 cmirror-2.02.143-2.el6 BUILT: Wed Mar 16 08:30:42 CDT 2016 How reproducible: Everytime