Install DB2 v8.2 on CentOS 4/5/6

Linux OS 安裝

OS 安裝選用的套件

• X Window System
• GNOME Desktop
• Editors
• Graphical Internet
• Text-based Internet
• Server Configuration Tools
• Legacy Network Server
  • rusers
  • rwho
• Development Tools
• Compatibility Arch Development
• Legacy Software Development
  • compat-boost-1331
• Administration Tools
• System Tools
• Compatibility Arch Support

必要得套件安裝

• pdksh
• nfs-utils

安裝前的系統參數調整

編輯 /etc/sysctl.conf

fs.file-max = 8192
kernel.shmmax = 1073741824
kernel.shmall = 471859
kernel.msgmni = 4096
kernel.sem = 250 64000 32 2048
vm.lower_zone_protection = 250

註：kernel.shmax :for x86, here is 268435456 byte(256MB); for 64bit, here is 1073741824 byte(1GB)
kernel.shmall: physical memory(KB) * 90% / 4, 2048 * 1024 * 90% /4= 471859.2 , 請注意不可小於 Table 所需的 buffer pool的總值.

套用設定

#sysctl -p

#ipcs -l

------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 1048576
max total shared memory (kbytes) = 1887436
min seg size (bytes) = 1

------ Semaphore Limits --------
max number of arrays = 2048
max semaphores per array = 250
max semaphores system wide = 64000
max ops per semop call = 32
semaphore max value = 32767

------ Messages: Limits --------
max queues system wide = 4096
max size of message (bytes) = 8192
default max size of queue (bytes) = 16384

oom-kill 值修改為 0

#echo 0 > /proc/sys/vm/oom-kill

開始安裝 DB2 Server 主程式

在 X Window 環境下安裝)

#tar xzf DB2_V82_ESE_LNX_AMD64_NLV.tar.gz
#cd ese
#db2setup

Install Products
> Installation Type: Typical
> Install DAS

• username: db2as
• group: db2asadm
• Home: /home/db2as

> Set up a DB2 Instance: Do not create a DB2 Instance
> Set up the administration contact list

• Local
• Enable notification: 不要選

NOTE:

出現警告視窗：未指定 SMTP server

選擇 OK 繼續下一步驟

> Finish，開始安裝主程式

安裝 DB2 FixPak 18

#tar xf FP18_MI00295.tar
#cd FP18_MI00295
#mkdir db2fp18
#tar xf FP18_MI00295.tar -C db2fp18/
#cd db2fp18
#./installFixPak -y

重啟主機

安裝後的事項

新增 Instance 帳號/群組

#groupadd db2adm
#useradd -g db2adm db2inst

編輯 /etc/services

#
DB2_db2inst      60000/tcp
DB2_db2inst_1    60001/tcp
DB2_db2inst_2    60002/tcp
DB2_db2inst_END  60003/tcp

新增 DB2 Instance

#cd /opt/IBM/db2/V8.1/instance/
#./db2icrt -s ese -u db2inst db2inst

未授權的訊息

#su - db2inst
#db2licm -l

Product Name                            = "DB2 Enterprise Server Edition"
Product Identifier                      = "DB2ESE"
Version Information                     = "8.2"
Expiry Date                             = "11/06/2013 (Try & Buy)"
Registered Connect User Policy          = "Disabled"
Number Of Entitled Connect Users        = "5"
Enforcement Policy                      = "Soft Stop"
Number of processors                    = "1"
Number of licensed processors           = "1"
Database partitioning feature           = "Entitled"
Annotation                              = ""
Other information

軟體版本

#su - db2inst
#db2level

DB21085I  Instance "db2inst" uses "32" bits and DB2 code release "SQL08029"
with level identifier "030A0106".
Informational tokens are "DB2 v8.1.3.160", "s090715", "MI00295", and FixPak
"18".
Product is installed at "/opt/IBM/db2/V8.1".
註：雖然安裝的版本是 x86_64，而這裡顯示 "32"bits，這是正常的。

匯入授權檔

#su - db2inst
#db2licm -a db2ese.lic

已授權的訊息

#db2licm -l

Product Name                            = "DB2 Enterprise Server Edition"
Product Identifier                      = "DB2ESE"
Version Information                     = "8.2"
Expiry Date                             = "Permanent"
Registered Connect User Policy          = "Disabled"
Number Of Entitled Connect Users        = "5"
Enforcement Policy                      = "Soft Stop"
Number of processors                    = "1"
Number of licensed processors           = "1"
Database partitioning feature           = "Not entitled"
Annotation                              = ""
Other information                       = ""

DB2 啟動及驗證

#su - db2inst
#db2 "update dbm cfg using svcename DB2_db2inst"
#db2set DB2COMM=tcpip
#db2set DB2CODEPAGE=950
#db2set DB2AUTOSTART=NO
#db2start
#ps -ef | grep db2sysc

TIPs:

第一次啟動 DB2 必須加上 db2set 的一些參數

如果有正常啟動，執行 netstat -lt 檢查

重要的調整

$> db2 "get db cfg"

 Log file size (4KB)                         (LOGFILSIZ) = 20480
 Number of primary log files                (LOGPRIMARY) = 20
 Number of secondary log files               (LOGSECOND) = 25
 Changed path to log files                  (NEWLOGPATH) =
 Path to log files                                       = /home/devmm/DEVMMDB/devmm/NODE0000/SQL00001/SQLOGDIR
 Block log on disk full                (BLK_LOG_DSK_FUL) = YES

mkdir /home/devmm/DEVMMDB/log
db2 "update db cfg for DEVMMDB using LOGFILSIZ 12800"
db2 "update db cfg for DEVMMDB using LOGPRIMARY 10"
db2 "update db cfg for DEVMMDB using LOGSECOND 10"
db2 "update db cfg for DEVMMDB using NEWLOGPATH /home/devmm/DEVMMDB/log"