这是第一次安装RAC，参考了国外一位大神的安装文档，在安装过程中，也遇到了一些问题，从网上查了相关问题的解决方法，在此感谢。
操作系统是 Oracle Enterprise Linux 5，两个节点 rac1和rac2，网卡eth0作为public，eth1作为private，假设之前已添加一块20G容量的共享磁盘。
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主机配置
所有命令在root用户下执行。
配置共享存储。共享存储可视为/dev/sdb设备。将使用fdisk命令创建两个10G大小的两个分区。 两个新的分区将用于ASM。
--list devices ls /dev/sd* /dev/sda /dev/sda1 /dev/sda2 /dev/sdb
--add two partitions fdisk /dev/sdb The number of cylinders for this disk is set to 2610. There is nothing wrong with that, but this is larger than 1024, and could in certain setups cause problems with: 1) software that runs at boot time (e.g., old versions of LILO) 2) booting and partitioning software from other OSs (e.g., DOS FDISK, OS/2 FDISK) Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 1 First cylinder (1-2610, default 1): Using default value 1 Last cylinder or +size or +sizeM or +sizeK (1-2610, default 2610): +10240M Command (m for help): n Command action e extended p primary partition (1-4) p Partition number (1-4): 2 First cylinder (1247-2610, default 1247): Using default value 1247 Last cylinder or +size or +sizeM or +sizeK (1247-2610, default 2610): Using default value 2610 Command (m for help): w The partition table has been altered! Calling ioctl() to re-read partition table. Syncing disks.
--list new partitions fdisk -l /dev/sdb Disk /dev/sdb: 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/sdb1 1 1246 10008463+ 83 Linux /dev/sdb2 1247 2610 10956330 83 Linux
添加组
--required groups /usr/sbin/groupadd -g 501 oinstall /usr/sbin/groupadd -g 502 dba /usr/sbin/groupadd -g 503 oper
添加Oracle用户
/usr/sbin/useradd -u 502 -g oinstall -G dba oracle
修改Oracle用户密码
passwd oracle
在 /etc/sysctl.conf下添加内核参数
#kernel parameters for 11g installation kernel.shmmni = 4096 kernel.shmmax = 4398046511104 kernel.shmall = 1073741824 kernel.sem = 250 32000 100 128 fs.aio-max-nr = 1048576 fs.file-max = 6815744 net.ipv4.ip_local_port_range = 9000 65500 net.core.rmem_default = 262144 net.core.rmem_max = 4194304 net.core.wmem_default = 262144 net.core.wmem_max = 1048586
应用内核参数
/sbin/sysctl -p
为用户Oracle在/etc/security/limits.conf文件中添加以下行以设置shell限制
--shell limits for users oracle 11gR2 oracle soft nproc 131072 oracle hard nproc 131072 oracle soft nofile 131072 oracle hard nofile 131072 oracle soft core unlimited oracle hard core unlimited oracle soft memlock 50000000 oracle hard memlock 50000000
“/ etc / hosts”文件必须包含服务器的完全限定名称。
<IP-address> <fully-qualified-machine-name> <machine-name>
“/ etc / hosts”下输入以下数据