第一次在Linux上安装DB2，参考了很多的网上资源，但是主要的是ldquo;Linux下安装DB2 version 8.1 的详细步骤rdquo;。同时把自己
第一次在Linux上安装DB2，参考了很多的网上资源，但是主要的是“Linux下安装DB2 version 8.1 的详细步骤”。
同时把自己遇到的问题住了一个记录，以做学习之用。
VMWARE使用的是VMware server 1.0.6，Linux的内核版本是：Linux node1 2.6.18-53.el5PAE
Root 权限操作:
第一步:检查程序包及其版本
compat-libstdc++-7.3-2.96.118.i386.rpm
在linux的安装盘上,找到后使用rpm -i compat-libstdc++-7.3-2.96.118.i386.rpm 安装即可
第二步:配置 Linux 内核参数
/etc/sysctl.conf文件，添加内核参数
kernel.msgmni =1024
kernel.sem = 250 256000 32 1024
使更改激活：sysctl –p
第三步:安装
sh db2_install
按照提示做
第四步：创建用户
/usr/sbin/groupadd db2iadm1
/usr/sbin/groupadd db2fadm1
/usr/sbin/useradd –m -g db2iadm1 –d /home/db2inst1 db2inst1
/usr/sbin/useradd –m -g db2fadm1 –d /home/db2fenc1 db2fenc1
第五步：创建实例
/opt/IBM/db2/V8.1/instance/db2icrt –a server –u db2fenc1 db2inst1
** please can go into /opt/IBM/db2/V8.1/instance, find file db2iutil
and replace all 'tail +2' with 'tail -n +2' if you meet error.
第六步：产品许可证
/opt/IBM/db2/V8.1/adm/db2licm -a /mnt/cdrom/db2/license/db2pe.lic
第七步：允许SMS的多页分配
/opt/IBM/db2/V8.1/cfg/db2ln
#第八步：添加DB2端口
# SU - root
# vi /etc/services 加入下面一行
# db2inst1 50000/tcp
这一步是不需要的，系统自定添加，但是有可能需要更改一下，我的是这样的：
DB2_db2inst1 50000/tcp
DB2_db2inst1_1 50001/tcp
DB2_db2inst1_2 50002/tcp
DB2_db2inst1_END 50003/tcp
以下是DB2 用户操作
第九步：DB2 配置
su – db2inst1
db2set DB2_EXTENDED_OPTIMIZATION=ON
db2set DB2_DISABLE_FLUSH_LOG=ON
db2set AUTOSTART=YES
db2set DB2_STRIPED_CONTAINERS=ON
db2set DB2_HASH_JOIN=Y
db2set DB2COMM=tcpip
db2set DB2_PARALLEL_IO=*
db2set DB2CODEPAGE=819
#Update dbm cfg
db2 update dbm cfg using SVCENAME db2inst1
db2 update dbm cfg using INDEXREC ACCESS
第十步：运行DB2
db2start
If raised error message:
Please check $DB2_home/sqllib/db2nodes.cfg, /etc/hosts uname -n，， confirm that all the node name is same.
第十一步：创建库
db2 "CREATE DATABASE test1 on /opt/IBM/tony/ USING CODESET ISO8859-1 TERRITORY CN"
以后就可以创建表和对表操作了，如 db2 "select * from sysibm.sysdummy1"
客户端操作：
1. catalog DB
db2 catalog tcpip node DS_NODE remote 192.168.102.128 server 50000
db2 catalog db test1 as ds_test1 at node ds_node
2. DB2 的一个常见连接错误出现：
db2 connect to ds_test1 user db2inst1 using 123456
SQL30081N A communication error has been detected. Communication protocol
being used: "TCP/IP". Communication API being used: "SOCKETS". Location
where the error was detected: "192.168.102.128". Communication function
detecting the error: "connect". Protocol specific error code(s): "10061", "*",
"*". SQLSTATE=08001
把dbm的VCENAME 的值和/etc/services中的端口号对应
db2 update dbm cfg using SVCENAME 50000
3. restart DB
db2stop force
db2start
db2 activate db test1
4. 参数确认
[db2inst1@node1 C]$ db2set -all
[i] DB2COMM=TCPIP
[g] DB2_EEE_LICENSE_POLICY=4295032864
[db2inst1@node1 C]$ netstat -an | grep 50000
确认DB2COMM 参数已经设置，同时50000端口已经启动
5.出现pagecode错误
db2 connect to ds_test1 user db2inst1 using 123456
SQL0332N Character conversion from the source code page "1114" to the target
code page "UNKNOWN" is not supported. SQLSTATE=57017
**原因：连接的数据库使用的代码页设置（819）与本地客户端设置的代码页（1386）不同 之间无法进行双向转换，
即无法将GBK 编码的字符转换为ISO-8859-1字符，解决方法：
db2set DB2CODEPAGE=819
db2 terminate
DB20000I The TERMINATE command completed successfully.
db2 connect to ds_test1 user db2inst1 using 123456
Database Connection Information
Database server = DB2/LINUX 8.1.0
SQL authorization ID = DB2INST1
Local database alias = DS_TEST1
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