将阵列上的LUN挂载到Linux主机后，如何对磁盘进行分区，方法参考https://www.ibm.com/developerworks/cn/linux/l-lpic1-v3-104-1/
fdisk 命令创建、修改或删除块设备上的分区
1、列出磁盘分区 fdisk -l dev/sda
2、启动fdisk
knoppix@Microknoppix:~$ su -root@Microknoppix:~# fdisk /dev/sdaThe number of cylinders for this disk is set to 121601.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):3、fdisk帮助
Command (m for help): mCommand action a toggle a bootable flag b edit bsd disklabel c toggle the dos compatibility flag d delete a partition l list known partition types m print this menu n add a new partition o create a new empty DOS partition table p print the partition table q quit without saving changes s create a new empty Sun disklabel t change a partition's system id u change display/entry units v verify the partition table w write table to disk and exit x extra functionality (experts only)Command (m for help):4、显示现有分区列表
Command (m for help): pDisk /dev/sda: 1000.2 GB, 1000204886016 bytes255 heads, 63 sectors/track, 121601 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk identifier: 0x000de20f Device Boot Start End Blocks Id System/dev/sda1 * 1 9111 73184076 7 HPFS/NTFS/dev/sda2 9634 9730 779152+ 83 Linux/dev/sda3 9731 116679 859067842+ 5 Extended/dev/sda5 9731 20917 89859546 83 Linux/dev/sda6 20918 39644 150424596 83 Linux/dev/sda7 39645 53905 114551451 83 LinuxCommand (m for help):5、创建一个分区
Command (m for help): nCommand action l logical (5 or over) p primary partition (1-4)pSelected partition 4First cylinder (9112-121601, default 9112): Using default value 9112Last cylinder, +cylinders or +size{K,M,G} (9112-9633, default 9633): +521Command (m for help): pDisk /dev/sda: 1000.2 GB, 1000204886016 bytes255 heads, 63 sectors/track, 121601 cylindersUnits = cylinders of 16065 * 512 = 8225280 bytesDisk identifier: 0x000de20f Device Boot Start End Blocks Id System/dev/sda1 * 1 9111 73184076 7 HPFS/NTFS/dev/sda2 9634 9730 779152+ 83 Linux/dev/sda3 9731 116679 859067842+ 5 Extended/dev/sda4 9112 9633 4192965 83 Linux/dev/sda5 9731 20917 89859546 83 Linux/dev/sda6 20918 39644 150424596 83 Linux/dev/sda7 39645 53905 114551451 83 LinuxPartition table entries are not in disk orderCommand (m for help):