On Thu, Feb 28, 2013 at 11:14 PM, Harold Pritchett <harold at uga.edu> wrote: > I have a system with 4 disk drives, two 512 Gb and two 1 Tb. > It look like this: > > CentOS release 5.9 (Final) > > Disk /dev/sda: 500.1 GB, 500107862016 bytes > Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes > Disk /dev/sdc: 500.1 GB, 500107862016 bytes > Disk /dev/sdd: 1000.2 GB, 1000204886016 bytes > ================================================================= > > ... snipped... > > One of the 512 Gb drives is failing. What I want to do is to replace the > two 512 Gb drives with 3 Tb drives, expand the RAID array on them and then > expand the LVM PV contained therein. This much I can do. > > Make a backup. You haven't said you did, but I won't go without saying it. You're going to need a backup even _if_ you moving extents between PVs. > I then want to move all of the date from the other PV into this one, and > remove > the second PV, RAID array, and the two 1 Tb drives, leaving me with two 3 > Tb > drves, a large RAID array and a single PV containing everything (except > the /boot > and SWAP partitions.) > > What I'm not sure about is how to move the date from the second PV to the > first so I can then delete the contents of the drive and physically remove > them > from the system leaving me with only the two 3 Tb drives. > You add your new PVs to the VG that your existing PVs are in. Then run pvmove [0] to migrate extents from the old PV to the new one. There are a couple of examples at the link I referenced. [0] http://www.centos.org/docs/5/html/Cluster_Logical_Volume_Manager/online_relocation.html > Help! > > Thanks > > Harold > > > > _______________________________________________ > CentOS mailing list > CentOS at centos.org > http://lists.centos.org/mailman/listinfo/centos > -- ---~~.~~--- Mike // SilverTip257 //