[linux-lvm] Unable to convert a broken LVM2 RAID1 to Linear volume

[Shi Jin]

thank you very much.

when i run your command, my machine froze but after reset,  the virtual
volumes undet the raid1 are now showing as regular volumes and i was able
to lvremove them and original volume keeps on working.

thanks a lot

Shi
On 2013-10-24 5:23 AM, "Marian Csontos" <mcsontos at redhat.com> wrote:

> On 10/23/2013 06:50 PM, Shi Jin wrote:
>
>> Hi there,
>>
>> I have setup a LVM2 raid1 mirror with
>>     lvconvert  -m 1 --type raid1 /dev/vg_data/lv_test /dev/sdd
>> and then after I remove one of its legs, the remaining leg keeps on
>> working just fine. However, I then want to convert this to a simple
>> Linux volume.
>>
>> it would fail:
>>
>> [root at shi-rhel63 ~]# lvconvert -m 0 /dev/vg_data/lv_test
>>    Couldn't find device with uuid QpjTRd-Cc0o-RC0y-7Gz8-GQ4u-**
>> 25FM-0vO4xt.
>>    Cannot change VG vg_data while PVs are missing.
>>    Consider vgreduce --removemissing.
>>
>
> Following worked for me except I ended up with unclean FS:
>
>     lvconvert -m 0 --repair -f vg_data/lv_test
>
> -- Marian
>
>
>> removemissing not working either
>>
>> [root at shi-rhel63 ~]# vgreduce  --removemissing vg_data
>>    Couldn't find device with uuid QpjTRd-Cc0o-RC0y-7Gz8-GQ4u-**
>> 25FM-0vO4xt.
>>    WARNING: Partial LV lv_test needs to be repaired or removed.
>>    WARNING: Partial LV lv_test_rmeta_1 needs to be repaired or removed.
>>    WARNING: Partial LV lv_test_rimage_1 needs to be repaired or removed.
>>    There are still partial LVs in VG vg_data.
>>    To remove them unconditionally use: vgreduce --removemissing --force.
>>    Proceeding to remove empty missing PVs.
>>
>> What should I do in my case to convert the LV to linear?
>>
>> My OS information:
>>
>> [root at shi-rhel63 ~]#  cat /etc/redhat-release
>> Red Hat Enterprise Linux Server release 6.3 (Santiago)
>> [root at shi-rhel63 ~]# uname -a
>> Linux shi-rhel63 2.6.32-279.el6.x86_64 #1 SMP Wed Jun 13 18:24:36 EDT
>> 2012 x86_64 x86_64 x86_64 GNU/Linux
>> [root at shi-rhel63 ~]# lvm version
>>    LVM version:     2.02.95(2)-RHEL6 (2012-05-16)
>>    Library version: 1.02.74-RHEL6 (2012-05-16)
>>    Driver version:  4.22.6
>>
>>
>> Thanks a lot.
>>
>> Shi
>>
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>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-**HOWTO/<http://tldp.org/HOWTO/LVM-HOWTO/>
>>
>>
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