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Date: Tue, 23 Jun 2015 10:44:42 +0200
From: Zdenek Kabelac <zkabelac@redhat.com>
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Subject: Re: [linux-lvm] lvcreate - device not cleared Aborting. Failed to
 wipe start of new LV.
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To: LVM general discussion and development <linux-lvm@redhat.com>

Dne 23.6.2015 v 08:22 csanyipal@gmail.com napsal(a):
> MegaBrutal <megabrutal@gmail.com> writes:
>
>> 2015-06-21 7:49 GMT+02:00 <csanyipal@gmail.com>:
>>> # lvcreate --verbose --size 10.10G -n var bubba
>>>    DEGRADED MODE. Incomplete RAID LVs will be processed.
>>
>> Hey, I just notice, your VG is in degraded mode. This is not a normal
>> condition and it can also cause unexpected things. Why is your VG
>> degraded? Does it have missing PVs?
>
> # vgdisplay -vvv
>   DEGRADED MODE. Incomplete RAID LVs will be processed.
>
> Indeed.
> I don't know why is mine VG degraded.
> How can I know does it have missing PVs?
> What can I do to fix this problem?

Hi

There is nothing to fix for a user in this case.

This message is only 'informational'  - probably it could be formulated 
somehow differently and less 'stressful'

Also it's location is currently wrong, since it's the 'activation' could which 
could recognize this case - however proper fix is not so trivial and will take 
time.

So basically - this message tells you - that command operates in mode it will
process  incomplete RAID LVs - and it likely should be printed only in case 
there IS some raid LV....

Regards

Zdenek