在virtualbox上创建共享磁盘

1、创建3块固定大小硬盘磁盘大小设置最好不一样，这样容易区分crs---->1.57Gfdisk ----->1.5Gdata1 ---->15G选择节点1虚拟机，进入其设置界面

2、设置硬盘可共享管理--->虚拟介质管理--->选择对应硬盘，点击修改：将以上三块硬盘设置成可共享

3、将共享磁盘加入到节点2虚拟机中选择节点2虚拟机，进入其设置界面,将之前设置的共享磁盘勾选进来

4、确定该对应关系根据硬盘大小，确定硬盘作用node1 node2/dev/sdb --->crs /dev/sdb/dev/sdc --->fdisk /dev/sdd/dev/sdd ---->data /dev/sdc

5、为共享磁盘设置一个主分辨泔矣嚣区只需要在节点1执行设置分区即可：[root@node1 ~]# cd /dev[root@node1 dev]# ls sd*sda sda1 sda2 sd锾攒揉敫a3 sda4 sda5 sdb sdc sdd[root@node1 dev]# fdisk sdcDevice contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabelBuilding a new DOS disklabel with disk identifier 0x480d1712.Changes will remain in memory only, until you decide to write them.After that, of course, the previous content won't be recoverable.Warning: invalid flag 0x0000 of partition table 4 will be corrected by w(rite)WARNING: DOS-compatible mode is deprecated. It's strongly recommended to switch off the mode (command 'c') and change display units to sectors (command 'u').Command (m for help): nCommand action e extended p primary partition (1-4)pPartition number (1-4): 1First cylinder (1-195, default 1):Using default value 1Last cylinder, +cylinders or +size{K,M,G} (1-195, default 195):Using default value 195Command (m for help): wThe partition table has been altered!Calling ioctl() to re-read partition table.Syncing disks.注意：三块共享磁盘都要设置一个主分区

6、查看效果分区豹肉钕舞设置完成之后[root@node1 dev]# pwd/dev[root@node1 dev]# ls sd*sd锾攒揉敫a sda1 sda2 sda3 sda4 sda5 sdb sdb1 sdc sdc1 sdd sdd1但是发现节点2只发现：[root@node2 dev]# ls sd*sda sda1 sda2 sda3 sda4 sda5 sdb sdc sdd节点1和节点2重启之后一致了[root@node2 dev]# ls sd*sda sda1 sda2 sda3 sda4 sda5 sdb sdb1 sdc sdc1 sdd sdd1