I have a SS20 with 2 18G disks in it. Both disks are identical Here is my config setup. raiddev /dev/md2 raid-level 1 nr-raid-disks 2 nr-spare-disks 0 chunk-size 4 persistent-superblock 1 device /dev/sda6 raid-disk 0 device /dev/sdb6 raid-disk 1 I have Raid and Raid1 compiled into Kernel 2.4.20. Below is what happens when I fsck a raid device, Either on start or from cli. (none):~# fsck /tmp fsck 1.33 (21-Apr-2003) e2fsck 1.33 (21-Apr-2003) The filesystem size (according to the superblock) is 255626 blocks The physical size of the device is 255600 blocks Either the superblock or the partition table is likely to be corrupt! Abort<y>? If I mount -a I get it mounted with no issues and the files systesm works perfectly. md: raid1 personality registered as nr 3 md: md driver 0.90.0 MAX_MD_DEVS=256, MD_SB_DISKS=27 md: Autodetecting RAID arrays. md: autorun ... md: ... autorun DONE. Above is the line from the kernel boot up I'm at a loss. Does anyone have some info? - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html