手把手一起玩RAC

一、配置环境变量

• 添加共享磁盘

分别在node1和node2上添加四块磁盘，其中磁盘grid1、grid2用于安装GRIDDG,磁盘data1用于存放数据文件,磁盘flash1用于存放闪回日志信息.注意在node1上是创建新的磁盘，而在node2上是添加已经存在的磁盘.

vmx文件配置信息参考

.encoding = "GBK"
config.version = "8"
virtualHW.version = "4"
floppy0.present = "FALSE"
nvram = "11gnode2.nvram"
virtualHW.productCompatibility = "hosted"
ft.secondary0.enabled = "TRUE"
tools.upgrade.policy = "useGlobal"
powerType.powerOff = "soft"
powerType.powerOn = "hard"
powerType.suspend = "hard"
powerType.reset = "soft"

displayName = "11gnode2"
extendedConfigFile = "11gnode2.vmxf"

numvcpus = "2"
scsi0.present = "TRUE"
scsi0.sharedBus = "none"
scsi0.virtualDev = "lsilogic"
memsize = "2048"
scsi0:0.present = "TRUE"
scsi0:0.fileName = "11gnode2.vmdk"
ide1:0.present = "TRUE"
ide1:0.fileName = "D:vmOracleLinux-R6-U3-Server-x86_64-dvd.iso"
ide1:0.deviceType = "cdrom-image"
ethernet0.present = "TRUE"
ethernet0.virtualDev = "e1000"
ethernet0.features = "1"
ethernet0.networkName = "Bridged"
ethernet0.addressType = "generated"
ethernet1.present = "TRUE"
ethernet1.virtualDev = "e1000"
ethernet1.features = "1"
ethernet1.networkName = "HostOnly"
ethernet1.addressType = "generated"
chipset.onlineStandby = "FALSE"
guestOSAltName = "Red Hat Enterprise Linux 5 (64-bit)"
guestOS = "rhel5-64"
uuid.location = "56 4d d3 c1 c8 a1 55 41-c5 a7 5c 05 b0 70 8f ea"
uuid.bios = "56 4d d3 c1 c8 a1 55 41-c5 a7 5c 05 b0 70 8f ea"
vc.uuid = "52 ac 07 b7 cb 07 ab 2f-88 e0 1b ac 74 ee 12 f9"
snapshot.action = "keep"

ethernet0.generatedAddress = "00:0c:29:70:8f:ea"
ethernet1.generatedAddress = "00:0c:29:70:8f:f4"
scsi0:0.redo = ""
vmotion.checkpointFBSize = "16777216"
ethernet0.generatedAddressOffset = "0"
ethernet1.generatedAddressOffset = "10"
tools.remindInstall = "TRUE"

disk.locking = "FALSE"
diskLib.dataCacheMaxSize = "0"
diskLib.dataCacheMaxReadAheadSize = "0"
diskLib.dataCacheMinReadAheadSize = "0"
diskLib.dataCachePageSize = "4096"
diskLib.maxUnsyncedWrites = "0"

scsi1.present = "TRUE"
scsi1.sharedBus = "VIRTUAL"
scsi1.virtualDev = "lsilogic"

scsi1:1.present = "TRUE"
scsi1:1.fileName = "D:Sharedgrid1.vmdk"
scsi1:1.writeThrough = "TRUE"
scsi1:1.mode = "independent-persistent"
scsi1:1.deviceType = "disk"
scsi1:1.redo = ""

scsi1:2.present = "TRUE"
scsi1:2.fileName = "D:Sharedgrid2.vmdk"
scsi1:2.writeThrough = "TRUE"
scsi1:2.mode = "independent-persistent"
scsi1:2.deviceType = "disk"
scsi1:2.redo = ""

scsi1:3.present = "TRUE"
scsi1:3.fileName = "D:Shareddata1.vmdk"
scsi1:3.writeThrough = "TRUE"
scsi1:3.mode = "independent-persistent"
scsi1:3.deviceType = "disk"
scsi1:3.redo = ""

scsi1:4.present = "TRUE"
scsi1:4.fileName = "D:Sharedflash1.vmdk"
scsi1:4.writeThrough = "TRUE"
scsi1:4.mode = "independent-persistent"
scsi1:4.deviceType = "disk"
scsi1:4.redo = ""

>>使用fdisk sdb命令格式化新增加的四块磁盘;注意，只需要在node1上进行格式化即可.
>>