一实验规划：

主机名	软件
sl410	gentoo + sys-block/iscsitarget-0.4.17
rac1	VMware-Workstation-Full-7.0.0-203739.i386.bundle RedHat.Enterprise.Linux.5.Update.2-XiSO.iso 10201_clusterware_linux32.iso 10201_database_linux32.iso iscsi-initiator-utils-6.2.0.868-0.7.el5.i386.rpm oracleasm-2.6.18-92.el5-2.0.5-1.el5.i686.rpm oracleasmlib-2.0.4-1.el5.i386.rpm oracleasm-support-2.1.3-1.el5.i386.rpm
rac2	VMware-Workstation-Full-7.0.0-203739.i386.bundle RedHat.Enterprise.Linux.5.Update.2-XiSO.iso 10201_clusterware_linux32.iso 10201_database_linux32.iso iscsi-initiator-utils-6.2.0.868-0.7.el5.i386.rpm oracleasm-2.6.18-92.el5-2.0.5-1.el5.i686.rpm oracleasmlib-2.0.4-1.el5.i386.rpm oracleasm-support-2.1.3-1.el5.i386.rpm

主机名	设备	IP 地址	子网掩码	默认网关地址
rac1	eth0	192.168.0.44	255.255.255.0	192.168.0.1
rac1	eth1	10.0.0.44	255.0.0.0	10.0.0.1
rac2	eth0	192.168.0.45	255.255.255.0	192.168.0.1
rac2	eth1	10.0.0.45	255.0.0.0	10.0.0.1
sl410	eth0:1	10.0.0.1	255.0.0.0	-

ASM管理

设备名	大小(M)	描述
/dev/sdb1	100(at least)	Ocr
/dev/sdb2	100	Votingdisk
/dev/sdb3	5000	ASM1
/dev/sdb4	5000	ASM2

二存储准备

由于rac1与rac2运行在vmware-workstation平台,而vmware-workstation没有vmware-server的共享存储功能.因此在sl410主机用iscsitarget发布共享硬盘设备.

下面命令存储发布一块10GB共享设备。其余磁盘划分的任务就让rac1与rac2去完成吧：）

sl410 oracle # dd if=/dev/zero f=/home/storage.volume count=200 bs=50M

sl410 oracle # /etc/init.d/ietd start

sl410 oracle # ietadm --op new --tid=1 --params Name=storage

sl410 oracle # ietadm --op new --tid=1 --lun=1 --params Path=/data/storage.volume

可以查看发布情况

storage oracle # ietadm --op show --tid=1

Wthreads=8

Type=0

QueuedCommands=32

SL410 ~ # cat /proc/net/iet/volume

tid:1 name:storage

lun:1 state:0 iotype:fileio iomode:wt path:/data/storage.volume

SL410 ~ # netstat -a |grep 3260

tcp 0 0 *:3260 *:* LISTEN

tcp6 0 0 [::]:3260 [::]:* LISTEN

三 rac1与rac2存储配置

1.rac1与rac2发现共享存储

[root@rac1 ~]# /etc/init.d/iscsid start

Turning off network shutdown. Starting iSCSI daemon:

[ OK ]

[root@rac1 ~]# iscsiadm --mode discovery --type sendtargets --portal 192.168.0.29 --login

192.168.0.29:3260,1 storage

Logging in to [iface: default, target: storage, portal: 192.168.0.29,3260]

Login to [iface: default, target: storage, portal: 192.168.0.29,3260]: successful

[root@rac1 ~]# fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

/dev/sda1 * 1 13 104391 83 Linux

/dev/sda2 14 2610 20860402+ 8e Linux LVM

Disk /dev/sdb: 10.4 GB, 10485760000 bytes

64 heads, 32 sectors/track, 10000 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Disk /dev/sdb doesn't contain a valid partition table

[root@rac1 ~]#

[root@rac2 ~]# /etc/init.d/iscsid start

Turning off network shutdown. Starting iSCSI daemon:

[ OK ]

[root@rac2 ~]# iscsiadm --mode discovery --type sendtargets --portal 192.168.0.29 --login

192.168.0.29:3260,1 storage

Logging in to [iface: default, target: storage, portal: 192.168.0.29,3260]

Login to [iface: default, target: storage, portal: 192.168.0.29,3260]: successful

[root@rac2 ~]# fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

/dev/sda1 * 1 13 104391 83 Linux

/dev/sda2 14 2610 20860402+ 8e Linux LVM

Disk /dev/sdb: 10.4 GB, 10485760000 bytes

64 heads, 32 sectors/track, 10000 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Disk /dev/sdb doesn't contain a valid partition table

2 对共享存储分区

[root@rac1 ~]# fdisk -l

Disk /dev/sda: 21.4 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Device Boot Start End Blocks Id System

/dev/sda1 * 1 13 104391 83 Linux

/dev/sda2 14 2610 20860402+ 8e Linux LVM

Disk /dev/sdb: 10.4 GB, 10485760000 bytes

64 heads, 32 sectors/track, 10000 cylinders

Units = cylinders of 2048 * 512 = 1048576 bytes

Device Boot Start End Blocks Id System

/dev/sdb1 1 500 511984 83 Linux

/dev/sdb2 501 1000 512000 83 Linux

/dev/sdb3 1001 5500 4608000 83 Linux

/dev/sdb4 5501 10000 4608000 83 Linux

3 映射sdb1 sdb2为raw

rac1配置

[root@rac1 ~]# raw /dev/raw/raw1 /dev/sdb1

/dev/raw/raw1: bound to major 8, minor 17

[root@rac1 ~]# raw /dev/raw/raw2 /dev/sdb2

/dev/raw/raw2: bound to major 8, minor 18

rac2配置

[root@rac2 ~]# raw /dev/raw/raw1 /dev/sdb1

/dev/raw/raw1: bound to major 8, minor 17

[root@rac2 ~]# raw /dev/raw/raw2 /dev/sdb2

/dev/raw/raw2: bound to major 8, minor 18

将raw命令写入rc.local以便系统重启后能自动映射:)

[root@rac1 ~]# cat /etc/rc.local

#!/bin/sh

#

# This script. will be executed *after* all the other init scripts.

# You can put your own initialization stuff in here if you don't

# want to do the full Sys V style. init stuff.

raw /dev/raw/raw1 /dev/sdb1

raw /dev/raw/raw2 /dev/sdb2

sleep 5

chown -R oracle:oinstall /dev/raw

touch /var/lock/subsys/local

[root@rac1 ~]#

ITPub博客

10gRAC+RHEL5U2+ASM+iscsi(1)

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