---------- Forwarded message ---------- Date: Tue, 19 Sep 2006 16:39:31 -0400 (EDT) From: Gaspar Bakos <gbakos@xxxxxxxxxxxxxxx> To: linux-raid@xxxxxxxxxxxxxxx Subject: RAID-5 making big partition fails Hi, I have a 12 disk RAID-5 hardware RAID with an ARECA card. This is under FC5, 2.6.17.6 kernel. The areca driver correcly reports 5Tb diskspace on this unit, shown as /dev/sdc: # fdisk /dev/sdc Disk /dev/sdc: 4999.9 GB, 4999998341120 bytes 255 heads, 63 sectors/track, 607881 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System ------- However, when I am trying to create one big partition with 5Tb size: First cylinder (1-73183, default 1): 1 Last cylinder or +size or +sizeM or +sizeK (1-73183, default 73183): It does allow me ONLY to create a 560Gb partition. Anyone knows the reason? I also tried 'gparted', but the same problem. I see the following logs in dmesg in the meantime: sdc : very big device. try to use READ CAPACITY(16). My kernel config is at: http://www.cfa.harvard.edu/~gbakos/cf7/config Help appreciated. Cheers, Gaspar