----- Original Message ---- > From: Eric B. <ebenze at hotmail.com> > To: centos at centos.org > Cc: linux-lvm at redhat.com > Sent: Thu, February 18, 2010 6:11:26 PM > Subject: [CentOS] Resizing a PV that belongs within a Volume Group? > > 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? First extend the physical media (resize the partition, LUN, whatever), then just pvresize the new partition Use with care, test it a few times in a test box or VM, then try it in production, if you screw up you'll lose your data.