Hello, i created a raid6 volume over 5 disks, with only those 5 in VG. Then I removed 1 disk, rebooted and added a new one. The question is how to replace the missing device with the new one. All is fine if I have 6th disk in VG as a hot spare, then i can just use "lvconvert --repair". Tried all of theese, nothing seems to work [root@lvm ~]# lvconvert --repair test/raid6 Couldn't find device with uuid jnGEwl-EVqs-yQ0M-rUxa-gLqD-fHNU-AJUKjl. Attempt to replace failed RAID images (requires full device resync)? [y/n]: y Insufficient suitable allocatable extents for logical volume : 87 more required Failed to allocate replacement images for test/raid6 Failed to replace faulty devices in test/raid6. This doesn't work with or without /dev/sdg [root@lvm ~]# lvconvert --replace raid6_rimage_0 test/raid6 /dev/sdg Couldn't find device with uuid jnGEwl-EVqs-yQ0M-rUxa-gLqD-fHNU-AJUKjl. Cannot change VG test while PVs are missing. Consider vgreduce --removemissing. [root@lvm ~]# vgextend --restoremissing test /dev/sdg Couldn't find device with uuid jnGEwl-EVqs-yQ0M-rUxa-gLqD-fHNU-AJUKjl. WARNING: PV /dev/sdg not found in VG test No PV has been restored. My lvm looks like this at the moment [root@lvm ~]# pvs Couldn't find device with uuid jnGEwl-EVqs-yQ0M-rUxa-gLqD-fHNU-AJUKjl. PV VG Fmt Attr PSize PFree /dev/sda2 vg_lvm lvm2 a-- 7.51g 0 /dev/sdc test lvm2 a-- 1020.00m 672.00m /dev/sdd test lvm2 a-- 1020.00m 672.00m /dev/sde test lvm2 a-- 1020.00m 672.00m /dev/sdf test lvm2 a-- 1020.00m 672.00m /dev/sdg lvm2 a-- 1.00g 1.00g unknown device test lvm2 a-m 1020.00m 672.00m [root@lvm ~]# lvs -a -o name,lv_attr,devices test Couldn't find device with uuid jnGEwl-EVqs-yQ0M-rUxa-gLqD-fHNU-AJUKjl. LV Attr Devices raid6 rwi---r- raid6_rimage_0(0),raid6_rimage_1(0),raid6_rimage_2(0),raid6_rimage_3(0),raid6_rimage_4(0) [raid6_rimage_0] Iwi---r- unknown device(1) [raid6_rimage_1] Iwi---r- /dev/sdc(1) [raid6_rimage_2] Iwi---r- /dev/sdd(1) [raid6_rimage_3] Iwi---r- /dev/sde(1) [raid6_rimage_4] Iwi---r- /dev/sdf(1) [raid6_rmeta_0] ewi---r- unknown device(0) [raid6_rmeta_1] ewi---r- /dev/sdc(0) [raid6_rmeta_2] ewi---r- /dev/sdd(0) [raid6_rmeta_3] ewi---r- /dev/sde(0) [raid6_rmeta_4] ewi---r- /dev/sdf(0) I also tried doing "vgreduce --removemissing --force" but it just destroys the partial raid volume. -- Tomas Vanderka TEMPEST a.s. Galvaniho 17/B, 821 04 BRATISLAVA Phone: +421 905 571 691
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