[CentOS] Resizing a PV that belongs within a Volume Group?

Philip Manuel phil at zomojo.com
Fri Feb 19 00:48:28 UTC 2010



Clint Dilks wrote:
> On 19/02/10 10:11, Eric B. wrote:
>   
>> Hi,
>>
>> I was wondering if there was a way to extend (ie: grow) a PV that is part of
>> a Volume Group?  I currently have a partition on my HD that is being used as
>> a PV for my Volume Group, but would like to make it larger.  I have the
>> space on my drive to extend my partition, but using standard tools (ex:
>> gparted, Partition Magic, etc) would likely end up corrupting the data on in
>> the Logical Volumes that are housed within the VG.
>>
>> I realize that I could just create a new partition on my HD and just add it
>> to my Volume Group and extend my Volume Group, however, given that it would
>> be two contiguous partitions on the HD, I was just wondering if there was a
>> way of resizing the original partition within the VG without causing any
>> problems.
>>
>> I tried looking at tools like pvresize but I can't seem to understand the
>> right arguments to use it as whatever I try never seems to resize the
>> original partition itself.  I also looked at system-config-lvm GUI tool, but
>> that doesn't seem to allow me to make the PV any larger.
>>
>> Does anyone have any suggestions?
>>
>> Thanks!
>>
>> Eric
>>
>>
>>
>>
>> _______________________________________________
>> CentOS mailing list
>> CentOS at centos.org
>> http://lists.centos.org/mailman/listinfo/centos
>>
>>    
>>     
> Hi I remember having done this once recently on a test system.  And I 
> strongly suggest you don't attempt unless you have a good backup.  You 
> use the standard tools to resize the partition and then pvresize to see 
> the new size of the PV.  Once you can see that the new size of the PV is 
> recognised by the VG you can allocate the space.
> _______________________________________________
> CentOS mailing list
> CentOS at centos.org
> http://lists.centos.org/mailman/listinfo/centos
>   

Hi,

This was discusssed back in May by Gavin Carr 
http://lists.centos.org/pipermail/centos/2009-May.txt

Phil.


More information about the CentOS mailing list