[linux-lvm] lvm raid: pvmove vs lvconvert

[linux-lvm] lvm raid: pvmove vs lvconvert

[lejeczek]

hi there

in lvm raid LVs, which one should be used and how do they 
differ - would you know? Are they meant for different things?

many thanks, L.

Re: [linux-lvm] lvm raid: pvmove vs lvconvert

[lejeczek]

On 18/10/17 15:42, lejeczek wrote:
> hi there
>
> in lvm raid LVs, which one should be used and how do they 
> differ - would you know? Are they meant for different things?
>
sorry, I'm thinking specifically of: lvconvert --replace VS 
pvmove

> many thanks, L.

Re: [linux-lvm] lvm raid: pvmove vs lvconvert

[Brassow Jonathan]

You could use either, I suppose.  The replace will pull out the RAID member and replace it with a new one.  pvmove will create a temporary mirror for the member being moved.  I don’t think it makes a huge difference which you use, but I would tend to use ‘lvconvert --replace’ when working with RAID segment types.

 brassow



> On Oct 18, 2017, at 9:54 AM, lejeczek <peljasz@yahoo.co.uk> wrote:
> 
> 
> 
> On 18/10/17 15:42, lejeczek wrote:
>> hi there
>> 
>> in lvm raid LVs, which one should be used and how do they differ - would you know? Are they meant for different things?
>> 
> sorry, I'm thinking specifically of: lvconvert --replace VS pvmove
> 
>> many thanks, L.
> 
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/

Re: [linux-lvm] lvm raid: pvmove vs lvconvert

[lejeczek]

lvm has fantastic man pages, would be great if "--replace" 
was shortly explained in context of raid0.
Would it work? does it move data?

On 24/10/17 20:45, Brassow Jonathan wrote:
> You could use either, I suppose.  The replace will pull out the RAID member and replace it with a new one.  pvmove will create a temporary mirror for the member being moved.  I don’t think it makes a huge difference which you use, but I would tend to use ‘lvconvert --replace’ when working with RAID segment types.
>
>   brassow
>
>
>
>> On Oct 18, 2017, at 9:54 AM, lejeczek <peljasz@yahoo.co.uk> wrote:
>>
>>
>>
>> On 18/10/17 15:42, lejeczek wrote:
>>> hi there
>>>
>>> in lvm raid LVs, which one should be used and how do they differ - would you know? Are they meant for different things?
>>>
>> sorry, I'm thinking specifically of: lvconvert --replace VS pvmove
>>
>>> many thanks, L.
>> _______________________________________________
>> linux-lvm mailing list
>> linux-lvm@redhat.com
>> https://www.redhat.com/mailman/listinfo/linux-lvm
>> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/
>
> _______________________________________________
> linux-lvm mailing list
> linux-lvm@redhat.com
> https://www.redhat.com/mailman/listinfo/linux-lvm
> read the LVM HOW-TO at http://tldp.org/HOWTO/LVM-HOWTO/