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gmane.linux.lvm.general |
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<[email protected]> |
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,
lvconvert looks it requires full raid array size for 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%
# 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
```
Thanks,
Heming
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