On Mon, Jul 13, 2009 at 12:13 PM, CoertWaagmeester<lgroups@xxxxxxxxxxxxxxxxx> wrote:>> I have a machine with 2 SATA 250GB disks which I want to upgrade to 1TB> SATAs>> This is the partition structure on both disks:>> Disk /dev/sda: 250.0 GB, 250059350016 bytes> 255 heads, 63 sectors/track, 30401 cylinders> Units = cylinders of 16065 * 512 = 8225280 bytes>> Device Boot Start End Blocks Id System> /dev/sda1 * 1 25 200781 fd Linux raid> autodetect> /dev/sda2 26 1971 15631245 fd Linux raid> autodetect> /dev/sda3 1972 30401 228363975 fd Linux raid> autodetect>> there are 3x RAID1 arrays.> First is for /boot> Second if for swap> Third is for LVM (contains / and other filesystems)>> What is the easiest way to get this upgraded?>> I thought that I could maybe dd all the LVM volumes and /boot into> files, setup the new RAID1 arrays on the 1TB disks, and dd everything> back? or is there an easier way?>
The software RAID 1 implementation of the kernel allows the array tobe extended. First you replace each old disk with the new 1TB disksand each time rebuild the array. After this the array is still only250GB but the partitions are already 1TB in size. Then use the --growoption of mdadm to increase the array to 1TB. Then it starts rebuildedthe new space. When this is ready you can use the pvextend command totell LVM that the PV has grown. Then the new space should be availablein the volume group and you can increase the LV's and the filesystemsinside them.
Regards,Tim
-- Tim Verhoeven - tim.verhoeven.be@xxxxxxxxx - 0479 / 88 11 83
Hoping the problem magically goes away by ignoring it is the"microsoft approach to programming" and should never be allowed.(Linus Torvalds)_______________________________________________CentOS mailing listCentOS@xxxxxxxxxxxxxx://lists.centos.org/mailman/listinfo/centos
