Hi Heinz, On 11/19/21 02:18, Heinz Mauelshagen wrote:
Hemng,
heming, not 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
pvmove can do the replace job, output from the same env. (you could set up a env to reproduce this issue) ``` # pvmove /dev/sdh /dev/sdi /dev/sdh: Moved: 2.50% /dev/sdh: Moved: 100.00% # 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 sdi 8:128 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 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 # lvs -ao+devices LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices root system -wi-ao---- 35.00g /dev/vda2(512) swap system -wi-ao---- 2.00g /dev/vda2(0) lv1 vg1 rwi-a-r--- 352.00m 100.00 lv1_rimage_0(0),lv1_rimage_1(0) [lv1_rimage_0] vg1 iwi-aor--- 352.00m /dev/sdg(0) [lv1_rimage_0] vg1 iwi-aor--- 352.00m /dev/sdi(1) [lv1_rimage_1] vg1 iwi-aor--- 352.00m /dev/sdj(1) [lv1_rimage_1] vg1 iwi-aor--- 352.00m /dev/sdk(0) [lv1_rmeta_0] vg1 ewi-aor--- 4.00m /dev/sdi(0) [lv1_rmeta_1] vg1 ewi-aor--- 4.00m /dev/sdj(0) ```
Use a larger PV to be able to replace.
In my view, this is a bug. Or man page should point out lvconvert doesn't have ability to move partial PV dev(s).
Best, Heinz On Mon, Nov 8, 2021 at 7:46 AM heming.zhao@xxxxxxxx <mailto:heming.zhao@xxxxxxxx> <heming.zhao@xxxxxxxx <mailto:heming.zhao@xxxxxxxx>> 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@xxxxxxxxxx <mailto:linux-lvm@xxxxxxxxxx> https://listman.redhat.com/mailman/listinfo/linux-lvm <https://listman.redhat.com/mailman/listinfo/linux-lvm> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/ <http://tldp.org/HOWTO/LVM-HOWTO/> _______________________________________________ linux-lvm mailing list linux-lvm@xxxxxxxxxx https://listman.redhat.com/mailman/listinfo/linux-lvm read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
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