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



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 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 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 shi-rhel63 ~]#  cat /etc/redhat-release
Red Hat Enterprise Linux Server release 6.3 (Santiago)
[root 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 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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