Setup with mixed PVs (on dasds forced with dasdfmt):
ubuntu@eoan-disktest:~$ sudo pvdisplay
"/dev/vdc1" is a new physical volume of "<6.88 GiB"
--- NEW Physical volume ---
PV Name /dev/vdc1
VG Name
PV Size <6.88 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID GqEvSA-Qalj-415c-01i7-0Zxb-gXTW-oUd7BW
"/dev/vdd1" is a new physical volume of "<6.88 GiB"
--- NEW Physical volume ---
PV Name /dev/vdd1
VG Name
PV Size <6.88 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID iMkCz2-JfSi-59ZS-RCzr-nAdC-9SUf-U9EeOu
"/dev/vde1" is a new physical volume of "3.51 GiB"
--- NEW Physical volume ---
PV Name /dev/vde1
VG Name
PV Size 3.51 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID vuWlZW-lALQ-Om05-a57f-e0Qu-pE4W-6Rmqyn
"/dev/vdf1" is a new physical volume of "3.51 GiB"
--- NEW Physical volume ---
PV Name /dev/vdf1
VG Name
PV Size 3.51 GiB
Allocatable NO
PE Size 0
Total PE 0
Free PE 0
Allocated PE 0
PV UUID OkVIqF-yXA3-MHPr-b3ON-A6Ua-d5GZ-QOHUae
ubuntu@eoan-disktest:~$ sudo blockdev --getss /dev/vdc1 /dev/vdd1 /dev/vde1
/dev/vdf1
4096
4096
512
512
out of these creating mixed size VG and LV:
$ sudo vgcreate vol_grp1 /dev/vdc1 /dev/vdd1 /dev/vde1 /dev/vdf1
$ sudo lvcreate -l 18 -n log_vol1 vol_grp1
$ sudo lvdisplay
--- Logical volume ---
LV Path /dev/vol_grp1/log_vol1
LV Name log_vol1
VG Name vol_grp1
LV UUID SNbOFb-F233-2RYv-rjy4-iGW6-Fmo0-f0NNU0
LV Write Access read/write
LV Creation host, time eoan-disktest, 2019-09-09 14:51:41 +0000
LV Status available
# open 0
LV Size 72.00 MiB
Current LE 18
Segments 1
Allocation inherit
Read ahead sectors auto
- currently set to 256
Block device 253:0
Updating to the test build with the requested fix (after
lvremove/vgremove).
Now the same create gives me
$ sudo vgcreate vol_grp1 /dev/vdc1 /dev/vdd1 /dev/vde1 /dev/vdf1
Devices have inconsistent logical block sizes (4096 and 512).
See lvm.conf allow_mixed_block_sizes.
$ echo $?
5
I can throw this line into lvm.conf devices section:
allow_mixed_block_sizes = 1
to make it work again.
I personally miss an entry to the man page or the default .conf file.
I might need to take a look if that was added in another commit, but
functionally it looks good already. But if anyone wants the PPA would be
already testable.
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https://bugs.launchpad.net/bugs/1842436
Title:
[UBUNTU] Avoid creation of mixed-blocksize PV on LVM volume groups
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