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Ads3.0(nfsfilesystem)安装手册

一.配置硬件集群

  1.最低硬件配置

  至少400MB的/tmp空间

  至少512MB的物理内存

  3倍于物理内存的swap空间(大于1g物理内存时可为2倍)

  我想硬盘空间大家不需要太节省,毕竟数据文件是放阵列的,本地硬盘的分区尽量开的大一点吧.

  光纤模块,光纤交换机,光纤线(主机与阵列建推荐用光纤,如果用千兆的6类网线的话最大速度也只能

  达到30多M每秒,

  由于阵列提供了近100M每秒的读速度,使用千兆网线会使网络传输会成为瓶颈.)

  2.需要的软件

  我这里是redhat 3.0,当然2.1也可以,不过还是推荐3.0,毕竟内核比较新,

  不知道2.6的内核能装9204rac否,到时再试一把.

  另外需要看看rsh的服务包有没装上

  rpm -q rsh-server

  rsh-server-0.17-17

  如果没有,装上rsh,这个是创建rac必须要有的.

  3.补丁

  操作系统的补丁尽量打到最新吧,特别是2.1的版本,努力往后打.

  4.安装阵列,我这里是netapp的阵列,通过创建卷后在linux client mount nfs实现.

  BTW,NETAPP的管理相当便捷.这里配置阵列的ip为10.0.29.152.当然你也可以用emc等阵列,

  那就变成raw device上建rac,脱离本文的范畴了.

  5.编辑两个节点的ip和/etc/hosts文件

  10.0.29.150

  wanghai1

  192.168.0.150

  wanghai1-eth1

  10.0.29.152

  FAS250

  10.0.29.151

  wanghai2

  192.168.0.151

  wanghai2-eth1

  6.调整内核网络参数

  由于rac cache fusion机制,我们必须调整内核网络参数.

  Parameter

  Meaning Value

  /proc/sys/net/core/rmem_default

  The default setting in bytes of the socket receive buffer

  262144

  /proc/sys/net/core/rmem_max

  The maximum socket receive buffer size in bytes

  262144

  /proc/sys/net/core/wmem_default

  The default setting in bytes of the socket send buffer

  262144

  /proc/sys/net/core/wmem_max

  The maximum socket

  send

  buffer

  size

  in bytes

  262144

  调整方法为

  $ echo

  262144 >

  /proc/sys/net/core/rmem_default

  7.配置/etc/fstab来挂载nfs filesystem

  这里贴出netapp nfs mount参数

  10.0.29.152:/vol/vol1/fas250

  /netapp nfs

  rw,hard,nointr,tcp,noac,vers=3,timeo=600,rsize=32768,wsize=32768

  8.配置rsh,rlogin,rcp等服务,使用/usr/sbin/ntsysv选择rsh,rlogin,rcp,

  用/sbin/chkconfig --list|grep on看看rsh等服务有没启动,如果没有,运行/sbin/service xinetd

  start.

  编辑/home/oracle/.rhost

  wanghai1

  oracle

  wanghai2

  oracle

  wanghai1-eth1

  oracle

  wanghai2-eth1

  oracle

  并测试rsh

  [oracle@wanghai2 oracle]$ rsh wanghai1 pwd

  /home/oracle

  [oracle@wanghai1 oracle]$ rsh wanghai2 pwd

  /home/oracle

  9.检查有没开启nfs,nfslock的服务,如果没有开启nfslock的话在启动instance的时候会报不能lock控

  制文件的错误.

  另外注意如果有iptables的服务关掉它,防火墙会给rsh带来麻烦,当然如果你能配置iptables让rsh通过

  就ok了.

  创建nfs的mount point,mkdir /netapp

  10.在nfs上建立共享quorum文件用于记录两节点的active信息

  touch /netapp/SharedConfigFile

  touch /netapp/CmDiskFile

  11.检查hangcheck_timer模块有没被加载,2.4.20以上内核应该包括了hangcheck,如果是2.4.9的内核

  可以去metalink下patch.查看hangcheck是否已加载可以用lsmod,如果没发现就insmod.

  二.安装OCM

  1.创建oinstall组,oracle用户,创建oracle主目录,创建profile文件

  Creating Oracle User Accounts

  su - root

  groupadd oinstall

  # group owner of Oracle files

  useradd -c "Oracle software owner" -g oinstall oracle

  passwd oracle

  Creating Oracle Directories

  In this example, make sure that the /opt filesystem is large enough, see Oracle Disk Space

  for more information. If /opt is not on a separate filesystem, then make sure the root

  filesystem "/" has enough space.

  su - root

  mkdir /opt/oracle

  mkdir /opt/oracle/product

  mkdir /opt/oracle/product/9.2

  chown -R oracle.oinstall /opt/oracle

  mkdir /var/opt/oracle

  chown oracle.oinstall /var/opt/oracle

  chmod 755 /var/opt/oracle

  Setting Oracle Environments

  Set the following Oracle environment variables before you start runInstaller.

  As the oracle user execute the following commands:

  # Set the LD_ASSUME_KERNEL environment variable only for Red Hat 9 and

  # for Red Hat Enterprise Linux Advanced Server 3 (RHEL AS 3) !!

  # Use the "Linuxthreads with floating stacks" implementation instead of NPTL:

  export LD_ASSUME_KERNEL=2.4.1

  # Oracle Environment

  export ORACLE_BASE=/opt/oracle

  export ORACLE_HOME=/opt/oracle/product/9.2

  export ORACLE_SID=test1

  export ORACLE_TERM=xterm

  # export TNS_ADMIN= Set if sqlnet.ora, tnsnames.ora, etc. are not in

  $ORACLE_HOME/network/admin

  export NLS_LANG=AMERICAN;

  export ORA_NLS33=$ORACLE_HOME/ocommon/nls/admin/data

  LD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib

  LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/lib

  export LD_LIBRARY_PATH

  # Set shell search paths

  export PATH=$PATH:$ORACLE_HOME/bin

  I successfully installed Oracle9iR2 without setting the following CLASSPATH environment

  variable:

  # CLASSPATH=$ORACLE_HOME/JRE:$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib

  # CLASSPATH=$CLASSPATH:$ORACLE_HOME/network/jlib

  # export CLASSPATH

  2.运行runInstaller,选择安装9201,去掉所有组件,只安装java环境和Oracle Universal Installer .

  退出,再运行runInstaller,选择安装ocm.再退出,再运行runInstaller,选择升级包,升级ocm到9204

  (这里多次退出重新运行runInstaller是为了防止Oracle Universal Installer出错)

  3.修改$ORACLE_HOME/oracm/admin/cmcfg.ora 文件,把包含watchdog的行都注释掉,因为9204的rac

  已经用hangcheck来监控节点的信息了.加上一行KernelModuleName=hangcheck-timer,修改miscount=210

  节点1的cmcfg.ora 文件

  HeartBeat=15000

  ClusterName=Oracle Cluster Manager, version 9i

  PollInterval=1000

  MissCount=210

  PrivateNodeNames=wanghai1-eth1 wanghai2-eth1

  PublicNodeNames=wanghai1 wanghai2

  ServicePort=9998

  #WatchdogSafetyMargin=5000

  #WatchdogTimerMargin=60000

  CmDiskFile=/netapp/CmDiskFile

  HostName=wanghai1-eth1

  KernelModuleName=hangcheck-timer

  节点2的cmcfg.ora 文件

  HeartBeat=15000

  ClusterName=Oracle Cluster Manager, version 9i

  PollInterval=1000

  MissCount=210

  PrivateNodeNames=wanghai1-eth1 wanghai2-eth1

  PublicNodeNames=wanghai1 wanghai2

  ServicePort=9998

  #WatchdogSafetyMargin=5000

  #WatchdogTimerMargin=60000

  CmDiskFile=/netapp/CmDiskFile

  Hos
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