[root@ns1 root]# fdisk /dev/sda The number of cylinders for this disk is set to 9726. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Command (m for help): p Disk /dev/sda: 80.0 GB, 80000040960 bytes 255 heads, 63 sectors/track, 9726 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sda1 * 1 6 48163+ fd Linux raid autodetect /dev/sda2 7 9535 76541692+ fd Linux raid autodetect /dev/sda3 9536 9726 1534207+ 82 Linux swap Command (m for help): q [root@ns1 root]# fdisk /dev/sdb The number of cylinders for this disk is set to 9726. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Command (m for help): p Disk /dev/sdb: 80.0 GB, 80000040960 bytes 255 heads, 63 sectors/track, 9726 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdb1 * 1 6 48163+ fd Linux raid autodetect /dev/sdb2 7 9535 76541692+ fd Linux raid autodetect /dev/sdb3 9536 9726 1534207+ 82 Linux swap Command (m for help): q [root@ns1 root]# fdisk /dev/sdc The number of cylinders for this disk is set to 9726. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Command (m for help): p Disk /dev/sdc: 80.0 GB, 80000040960 bytes 255 heads, 63 sectors/track, 9726 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Device Boot Start End Blocks Id System /dev/sdc1 * 1 6 48163+ fd Linux raid autodetect /dev/sdc2 7 9535 76541692+ fd Linux raid autodetect /dev/sdc3 9536 9726 1534207+ 82 Linux swap Command (m for help): q [root@ns1 root]# fdisk /dev/sdd Unable to open /dev/sdd [root@ns1 root]# cat /proc/mdstat Personalities : [raid1] read_ahead 1024 sectors md0 : active raid1 sdb1[1] sda1[0] 48064 blocks [2/2] [UU] md1 : active raid1 sdb2[1] sda2[0] 76541568 blocks [2/2] [UU] unused devices: [root@ns1 root]#