vmware创建共享磁盘给oraclerac使用（rhel系统）

1 使用vmware创建共享磁盘：
    C:\Users\Administrator>E:\vmware\vmware-vdiskmanager.exe -c -s 500M -a lsilogic -t 2 "G:\rac_sharedisk\testdisk01.vmdk"
    Creating disk 'G:\rac_sharedisk\testdisk01.vmdk'
      Create: 100% done.
    Virtual disk creation successful.

2 使用vmware将磁盘添加进虚拟机。
    进入虚拟机主目录，修改对应的vmx文件， 添加如下行，其中6可以根据情况自行制定。
    scsi1:6.present = "TRUE"
    scsi1:6.mode = "independent-persistent"
    scsi1:6.filename = "G:\rac_sharedisk\testdisk01.vmdk"
    scsi1:6.deviceType = "disk"

    ps:一套rac两个节点都一样操作

3 操作系统扫描磁盘，若fdisk无法查看到对应磁盘，使用如下命令重新扫描磁盘(对正在运行的rac无影响)
    [root@rac1 raw]#echo "- - -" > /sys/class/scsi_host/host0/scan
    [root@rac1 raw]#echo "- - -" > /sys/class/scsi_host/host1/scan
    ...

    [root@rac1 raw]# fdisk -l
   Disk /dev/sdg: 524 MB, 524288000 bytes
    64 heads, 32 sectors/track, 500 cylinders
    Units = cylinders of 2048 * 512 = 1048576 bytes
    Sector size (logical/physical): 512 bytes / 512 bytes
    I/O size (minimum/optimal): 512 bytes / 512 bytes
    Disk identifier: 0x00000000

4 修改udev配置文件
    [root@rac2 raw]# grep -v ^# /etc/udev/rules.d/60-raw.rules
    ACTION=="add", KERNEL=="sdb1", RUN+="/bin/raw /dev/raw/raw1 %N"
    ACTION=="add", KERNEL=="sdc1", RUN+="/bin/raw /dev/raw/raw2 %N"
    ACTION=="add", KERNEL=="sdd1", RUN+="/bin/raw /dev/raw/raw3 %N"
    ACTION=="add", KERNEL=="sde1", RUN+="/bin/raw /dev/raw/raw4 %N"
    ACTION=="add", KERNEL=="sdf1", RUN+="/bin/raw /dev/raw/raw5 %N"
    ACTION=="add", KERNEL=="sdg", RUN+="/bin/raw/dev/raw/raw6 %N"
    KERNEL=="raw1", OWNER="grid", GROUP="asmadmin", MODE="660"
    KERNEL=="raw2", OWNER="grid", GROUP="asmadmin", MODE="660"
    KERNEL=="raw3", OWNER="grid", GROUP="asmadmin", MODE="660"
    KERNEL=="raw4", OWNER="grid", GROUP="asmadmin", MODE="660"
    KERNEL=="raw5", OWNER="grid", GROUP="asmadmin", MODE="660"
    KERNEL=="raw6", OWNER="grid", GROUP="asmadmin", MODE="660"

5 重启udev（对正在运行的rac无影响）
    /sbin/start_udev

6 确认盘已经存在
    [root@rac1 raw]# pwd
    /dev/raw
    [root@rac1 raw]# ll
    total 0    
    crw-rw---- 1 grid asmadmin 162, 1 Jun 14 05:01 raw1
    crw-rw---- 1 grid asmadmin 162, 2 Jun 14 05:00 raw2
    crw-rw---- 1 grid asmadmin 162, 3 Jun 14 05:00 raw3
    crw-rw---- 1 grid asmadmin 162, 4 Jun 14 04:40 raw4
    crw-rw---- 1 grid asmadmin 162, 5 Jun 14 04:40 raw5
    crw-rw---- 1 grid asmadmin 162, 6 Jun 14 05:00 raw6
    crw-rw---- 1 root disk     162, 0 Jun 14 04:40 rawctl

6 进入asm实例，添加磁盘。
    SQL> select PATH,name,GROUP_NUMBER,STATE,MOUNT_STATUS,HEADER_STATUS from v$asm_disk;
    PATH                   NAME      GROUP_NUMBER STATE        MOUNT_STATUS   HEADER_STATUS
    ------------------------------ ---------- ------------ ---------------- -------------- ------------------------
    /dev/raw/raw6                         0 NORMAL        CLOSED           CANDIDATE
    /dev/raw/raw3               DATA_0002         2 NORMAL        CACHED           MEMBER
    /dev/raw/raw4               DATA1_0000         1 NORMAL        CACHED           MEMBER
    /dev/raw/raw5               DATA1_0001         1 NORMAL        CACHED           MEMBER
    /dev/raw/raw2               DATA_0001         2 NORMAL        CACHED           MEMBER
    /dev/raw/raw1               DATA_0000         2 NORMAL        CACHED           MEMBER

    SQL> alter diskgroup DATA add disk '/dev/raw/raw6';
    Diskgroup altered.

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