利用virtualbox创建rac共享磁盘方式

1、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->5Gfdisk ->20Gdata1 ->30G1.1.两个节点关机1.2.选择节点1虚拟机，进入其设置界面1.3.添加依次创建fdisk ->20G data1 ->30G2. 设置硬盘可共享管理->虚拟介质管理->选择对应硬盘，点击属性：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

2、/dev/sdb/dev/sdc /dev/sdd/dev/sdd /dev/sdc5. 为共享磁盘设置一个主分区5.1只需要在节点1执行设置分区即可：rootrac19db1 # fdisk /dev/sdbWelcome to fdisk (util-linux 2.23.2).Changes will remain in memory only, until you decide to write them.Be careful before using the write command.Device does not contain a recognized partition ta

3、bleBuilding a new DOS disklabel with disk identifier 0x46aa7bf5.Command (m for help): nPartition type: p primary (0 primary, 0 extended, 4 free) e extendedSelect (default p): pPartition number (1-4, default 1): 1First sector (2048-10485759, default 2048): Using default value 2048Last sector, +sector

4、s or +sizeK,M,G (2048-10485759, default 10485759): Using default value 10485759Partition 1 of type Linux and of size 5 GiB is setCommand (m for help): wThe partition table has been altered!Calling ioctl() to re-read partition table.Syncing disks.rootrac19db1 # lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNT

5、POINTsda 8:0 0 50G 0 disk sda1 8:1 0 1G 0 part /bootsda2 8:2 0 49G 0 part rhel_rac19db1-root 253:0 0 41.1G 0 lvm / rhel_rac19db1-swap 253:1 0 7.9G 0 lvm SWAPsdb 8:16 0 5G 0 disk sdb1 8:17 0 5G 0 part sdc 8:32 0 30G 0 disk sdd 8:48 0 20G 0 disk sr0 11:0 1 1024M 0 rom 注意：三块共享磁盘都要设置一个主分区5.2个节点刷新磁盘partp

6、robe /dev/sdbpartprobe /dev/sdcpartprobe /dev/sdd6. 查看效果6.1.lsblkrootrac19db1 # lsblkNAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINTsda 8:0 0 50G 0 disk sda1 8:1 0 1G 0 part /bootsda2 8:2 0 49G 0 part rhel_rac19db1-root 253:0 0 41.1G 0 lvm / rhel_rac19db1-swap 253:1 0 7.9G 0 lvm SWAPsdb 8:16 0 5G 0 disk sdb

7、1 8:17 0 5G 0 part sdc 8:32 0 30G 0 disk sdc1 8:33 0 30G 0 part sdd 8:48 0 20G 0 disk sdd1 8:49 0 20G 0 part sr0 11:0 1 1024M 0 rom 6.2.ls -l /dev/sd*rootrac19db1 # ls -l /dev/sd*brw-rw- 1 root disk 8, 0 Sep 13 08:23 /dev/sdabrw-rw- 1 root disk 8, 1 Sep 13 08:23 /dev/sda1brw-rw- 1 root disk 8, 2 Sep 13 08:23 /dev/sda2brw-rw- 1 root disk 8, 16 Sep 13 08:23 /dev/sdbbrw-rw- 1 root disk 8, 17 Sep 13 08:23 /dev/sdb1brw-rw- 1 root disk 8, 32 Sep 13 08:23 /dev/sdcbrw-rw- 1 root disk 8,