Hi all, I have a disk array with about 4.5 TB and would like to use it as one lar ge logical volume with an ext3 file system. When mounting the logical volume , I get an "Input/Output error: can't read superblock".
I'm using SL 4.2 with kernel 2.6 and this is what I did so far: - used parted to create a gpt disk label (mklabel gpt) and one large partition (mkpart primary ext3 0s -1s) - used parted to enable LVM flag on device (set 1 LVM on) - created one physical volume, one volume group and one logical volume (pvcreate /dev/sda1, vgcreate raid6 /dev/sda1, lvcreate -l 1189706 -n vol 1 raid6) - created an ext3 filesystem and explicitly specified a 4K blocksize, as this should allow a filesystem size of up to 16 TB (mkfs.ext3 -m 0 -b 409 6 /dev/raid6/vol1) However, mounting (mount /dev/raid6/vol1 /raid) gives the superblock erro r, mentioned above. Everything is working as expected, when using ext2 filesystem (with LVM) or ext3 filesystem (without LVM). Using a smaller volume (< 2 TB) is working with ext3+LVM as well. Only the combination of > 2TB+ext3+LVM gives me tr ouble. Any ideas or suggestions? Regards, Jan
