On Wed, Dec 12, 2012 at 4:36 PM, Laurent Wandrebeck <l.wandreb...@gmail.com> wrote: > Hi there, > > I've discovered that most of the hard drives used in our cluster got > misaligned partitions, thus crippling perfs. Is there any way to fix > that without having to delete/recreate properly aligned partitions, then > format it and refill disks ? > I'd be glad not to have to toy with moving several 10s of TB disk by > disk :D (most disks are JBOD as we're using a fault tolerant network > FS, moosefs not to name it). > <insert your favorite search engine> wasn't helpful, unfortunately. > Drives are ext4, driven by C6 x86_64.
boot the server with a gparted livecd / pxe ; move the partitions around with an offset of 1MB at the start of the disk/volume. I do not know if this trick will work with lvm, in this case you need to move the data around and recreate the volumes with the correct offset. Have fun! -- groet, natxo _______________________________________________ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
