Hemng, 'lvconvert --replace ..." reports the new PV does not have enough space (89 needed/49 available) to suit full replacement and rejects as replacement requires complete SubLVs to move off respective PVs.
Check lsblk (or lvs -ao+devices) after the pvmove to confirm a partial move across resulting remaining allocations for leg 0 on /dev/sdh, i.e no replacement Use a larger PV to be able to replace. Best, Heinz On Mon, Nov 8, 2021 at 7:46 AM heming.z...@suse.com <heming.z...@suse.com> wrote: > (I sent this mail some days before, it looks this mail was blocked by > anti-spam system. resend it) > > Hello list, > > I may found a bug, when lv is raid1, and each leg includes more than one > PV. > > When doing "lvconvert --replace" to replace one of the oldpv with a newpv, > It looks lvconvert requires full raid array size for a single newpv. > > lvm version: 2.03.12, Reproducible steps: > > ``` > # vgcreate vg1 /dev/sdg /dev/sdh > Volume group "vg1" successfully created > > # lvcreate -n lv1 -l 90%FREE vg1 > Logical volume "lv1" created. > > # vgextend vg1 /dev/sdj /dev/sdk > Physical volume "/dev/sdj" successfully created. > Physical volume "/dev/sdk" successfully created. > Volume group "vg1" successfully extended > > # lvconvert --type raid1 vg1/lv1 /dev/sdg /dev/sdh /dev/sdj /dev/sdk > Are you sure you want to convert linear LV vg1/lv1 to raid1 type? [y/n]: y > Logical volume vg1/lv1 successfully converted. > > # lsblk > NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT > sdg 8:96 0 200M 0 disk > └─vg1-lv1_rimage_0 254:4 0 352M 0 lvm > └─vg1-lv1 254:2 0 352M 0 lvm > sdh 8:112 0 200M 0 disk > ├─vg1-lv1_rmeta_0 254:3 0 4M 0 lvm > │ └─vg1-lv1 254:2 0 352M 0 lvm > └─vg1-lv1_rimage_0 254:4 0 352M 0 lvm > └─vg1-lv1 254:2 0 352M 0 lvm > sdi 8:128 0 200M 0 disk > sdj 8:144 0 200M 0 disk > ├─vg1-lv1_rmeta_1 254:5 0 4M 0 lvm > │ └─vg1-lv1 254:2 0 352M 0 lvm > └─vg1-lv1_rimage_1 254:6 0 352M 0 lvm > └─vg1-lv1 254:2 0 352M 0 lvm > sdk 8:160 0 200M 0 disk > └─vg1-lv1_rimage_1 254:6 0 352M 0 lvm > └─vg1-lv1 254:2 0 352M 0 lvm > sdl 8:176 0 200M 0 disk > > # vgextend vg1 /dev/sdi > Volume group "vg1" successfully extended > > # lvconvert --replace /dev/sdh vg1/lv1 /dev/sdi (<=== failed, should > succeed) > Insufficient free space: 89 extents needed, but only 49 available > LV vg1/lv1 in not partial. > > # lvconvert --replace /dev/sdg vg1/lv1 /dev/sdi (<=== failed, should > succeed) > Insufficient free space: 89 extents needed, but only 49 available > LV vg1/lv1 in not partial. > > # pvmove /dev/sdh /dev/sdi > /dev/sdh: Moved: 2.50% > /dev/sdh: Moved: 100.00% > ``` > > pvmove is workable, but I think it's a work around. > lvconvert should run successfully with above cmds. > > Thanks, > Heming > > > _______________________________________________ > linux-lvm mailing list > linux-lvm@redhat.com > https://listman.redhat.com/mailman/listinfo/linux-lvm > read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
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