[linux-lvm] Can't work normally after attaching disk volumes originally in a VG on another machine

[Gang He]

Hi Fran,


>>> 
> On 26 March 2018 at 08:04, Gang He <ghe at suse.com> wrote:
>> It looks like each PV includes a copy meta data for VG, but if some PV has 
> changed (e.g. removed, or moved to another VG),
>> the remained PV should have a method to check the integrity when each 
> startup (activated?), to avoid such inconsistent problem automatically.
> 
> Your workflow is strange. What are you trying to accomplish here?
I just reproduced a problem from the customer, since they did virtual disk migration from one virtual machine  to another one.
According to your comments, this does not look like a LVM code problem, 
the problem can be considered as LVM administer misoperation?

Thanks
Gang   

> 
> Your steps in 5 should be:
> 
> vgreduce vg01 /dev/vdc /dev/vdc
> pvremove /dev/vdc /dev/vdd
> 
> That way you ensure there's no leftover metadata in the PVs (specially
> if you need to attach those disks to a different system)
> 
> Again a usecase to understand your workflow would be beneficial...
> 
> Cheers
> 
> fran
> 
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