Vmware Workstation + Suse Linux 11 SP3 + db2 purescale V10.5

Posted 2020-09-22

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本文详细记录了DB2 purescale 10.5在VMware Workstation 上的安装过程，如果大家看了本人的博文后，实践过程中有什么问题，欢迎加本人微信84077708，我将尽我所能为大家解惑。

VMware Tools 安装好了以后，就可以实现物理机与虚拟机之间自由交换数据了，下面开始配置Suse linux 11SP3 操作系统：

1、配置/etc/hosts

2、配置DNS主备服务器

3、修改内核参数

4、修改资源限制

5、配置NTP服务器

一、配置/etc/hosts （node01 , node02修改成一样)

127.0.0.1 localhost

# special IPv6 addresses

::1 localhost ipv6-localhost ipv6-loopback

fe00::0 ipv6-localnet

ff00::0 ipv6-mcastprefix

ff02::1 ipv6-allnodes

ff02::2 ipv6-allrouters

ff02::3 ipv6-allhosts

192.168.142.101 node01.purescale.ibm.local node01

192.168.142.102 node02.purescale.ibm.local node02

二、配置主DNS服务器（node01)

配置DNS服务器，需要安装bind-9.6ESVR7P4-0.10.1.x86_64.rpm。安装好bind软件包以后，先用root用户执行以下命令，使named服务开机自动启动。

node01:~ # chkconfig -a named

named 0:off 1:off 2:off 3:on 4:off 5:on 6:off

开启named服务的时候，会同时在/etc/目录下生成named.conf文件，该文件的内容如下：

options {

directory "/var/lib/named";

dump-file "/var/log/named_dump.db";

statistics-file "/var/log/named.stats";

listen-on port 53 { any; };

listen-on-v6 { any; };

allow-query { any; };

notify no;

}

zone "." in {

type hint;

file "root.hint";

};

zone "localhost" in {

type master;

file "localhost.zone";

};

zone "0.0.127.in-addr.arpa" in {

type master;

file "127.0.0.zone";

};

zone "purescale.ibm.local" IN {

type master;

file "purescale.ibm.local";

allow-transfer{192.168.142.102; };

};

zone "142.168.192.in-addr.arpa" IN {

type master;

file "142.168.192.in-addr.arpa";

allow-transfer{192.168.142.102; };

};

# Include the meta include file generated by createNamedConfInclude. This

# includes all files as configured in NAMED_CONF_INCLUDE_FILES from

# /etc/sysconfig/named

include "/etc/named.conf.include";

除了/etc/named.conf配置文件以外，还有正向解析配置文件和反向解析配置文件。这两个文件存放在/var/lib/named目录下。文件名分别为purescale.ibm.local和142.168.192.in-addr.arpa

/var/lib/named/purescale.ibm.local正向解析文件的内容如下：

$TTL 86400

@ IN SOA mydns root.mydns (

42 ; serial (d. adams)

3H ; refresh

15M ; retry

1W ; expiry

1D ) ; minimum

IN NS ns

IN NS ns2

ns IN A 192.168.142.101

ns2 IN A 192.168.142.102

node01 IN A 192.168.142.101

node02 IN A 192.168.142.102

/var/lib/named/142.168.192.in-addr.arpa反向解析文件的内容如下：

$ORIGIN 142.168.192.in-addr.arpa.

$TTL 1H

@ IN SOA ns.purescale.ibm.local. root.purescale.ibm.local. ( 2

1H )

@ IN NS ns.purescale.ibm.local.

@ IN NS ns2.purescale.ibm.local.

101 IN PTR node01.purescale.ibm.local.

102 IN PTR node02.purescale.ibm.local.

101 IN PTR ns.purescale.ibm.local.

102 IN PTR ns2.purescale.ibm.local.

配置好这三个文件以后，还需要检查一下语法有没有问题：

node01:/var/lib/named # named-checkconf

node01:/var/lib/named # named-checkzone purescale.ibm.local purescale.ibm.local

zone purescale.ibm.local/IN: loaded serial 42

node01:/var/lib/named #service named restart

Shutting down name server BIND done

Starting name server BIND done

如果输出如上面，则表示配置正确，否则配置就有问题。

编辑/etc/resolv.conf文件

添加如下内容：

search purescale.ibm.local

nameserver 192.168.142.101

nameserver 192.168.142.102

验证主DNS有没有问题：

node01:/var/lib/named # nslookup node01

Server: 192.168.142.101

Address: 192.168.142.101#53

Name: node01.purescale.ibm.local

Address: 192.168.142.101

node01:/var/lib/named # nslookup node02

Server: 192.168.142.101

Address: 192.168.142.101#53

Name: node02.purescale.ibm.local

Address: 192.168.142.102

node01:/var/lib/named # nslookup 192.168.142.101

Server: 192.168.142.101

Address: 192.168.142.101#53

101.142.168.192.in-addr.arpa name = node01.purescale.ibm.local.

101.142.168.192.in-addr.arpa name = ns.purescale.ibm.local.

node01:/var/lib/named # nslookup 192.168.142.102

Server: 192.168.142.101

Address: 192.168.142.101#53

102.142.168.192.in-addr.arpa name = ns2.purescale.ibm.local.

102.142.168.192.in-addr.arpa name = node02.purescale.ibm.local.

到此，主DNS就配置完成了。

三、配置备用DNS (node02)

备用DNS与主DNS的配置基本相同，只是/etc/named.conf文件中有些不同，要配置备用DNS，也需要安装bind-9.6ESVR7P4-0.10.1.x86_64.rpm软件包，然后使用root用户执行以下命令：

node02:~ # chkconfig -a named

named 0:off 1:off 2:off 3:on 4:off 5:on 6:off

执行以上命令以后，在node02的/etc/目录下就生成了一个新的named.conf配置文件

修改该文件的内容如下：

options {

directory "/var/lib/named";

dump-file "/var/log/named_dump.db";

statistics-file "/var/log/named.stats";

listen-on port 53 { any; };

listen-on-v6 { any; };

allow-query { any; };

notify no;

}

zone "." in {

type hint;

file "root.hint";

};

zone "localhost" in {

type master;

file "localhost.zone";

};

zone "0.0.127.in-addr.arpa" in {

type master;

file "127.0.0.zone";

};

zone "purescale.ibm.local" IN {

type slave;

file "slave/purescale.ibm.local";

masters{192.168.142.101; };

};

zone "142.168.192.in-addr.arpa" IN {

type slave;

file "slave/142.168.192.in-addr.arpa";

masters{192.168.142.101; };

};

# Include the meta include file generated by createNamedConfInclude. This

# includes all files as configured in NAMED_CONF_INCLUDE_FILES from

# /etc/sysconfig/named

include "/etc/named.conf.include";

/etc/named.conf文件配置好后，就剩下正向解析文件和反向解析文件了，备用DNS服务器的正向解析文件和反向解析文件存放在node02上的/var/lib/named/slave/目录下，文件内容与主DNS服务器的文件内容一模一样，只需要将主DNS服务器的/var/lib/named目录下的purescale.ibm.local文件和 142.168.192.in-addr.arpa文件使用scp命令复制到node02虚拟机的/var/lib/named/slave/目录下即可。

node01:/var/lib/named #scp purescale.ibm.local [email protected]:/var/lib/named/slave/

node01:/var/lib/named #scp 142.168.192.in-addr.arpa [email protected]:/var/lib/named/slave/

编辑/etc/resolv.conf文件

添加如下内容：

search purescale.ibm.local

nameserver 192.168.142.101

nameserver 192.168.142.102

到此，备用DNS服务器的配置也完成了。

配置是否正确的验证方法与主DNS服务器的验证方法一样，在此就不重复了。

四、修改内核参数（node01 , node02都要修改)

内核参数文件为/etc/sysctl.conf

在文件尾部添加以下内容：（以内存3.5GB为例进行配置）

kernel.shmmni=1024

kernel.shmmax=3758096384

kernel.shmall=1048576

kernel.sem=250 256000 32 1024

kernel.msgmni=1024

kernel.msgmax=65536

kernel.msgmnb=65536

fs.aio-max-nr = 1048576

fs.file-max = 6815744

五、修改资源限制文件(node01 , node02都要修改)

资源限制文件为/etc/security/limits.conf

在文件尾部添加以下内容：

* soft nofile 65536

* hard nofile 65536

* soft nproc 65536

* hard nproc 65536

* soft stack 65536

* hard stack 65536

* hard memlock 134217728

* soft memlock 134217728

六、配置NTP服务器（node01)

NTP服务器的配置文件为/etc/ntp.conf,内容如下：

tinker panic 0

restrict default kod nomodify notrap

restrict 127.0.0.1

# -- CLIENT NETWORK -------

restrict 192.168.142.0 mask 255.255.0.0 nomodify notrap

# --- OUR TIMESERVERS -----

server 192.168.142.1

server 127.127.1.0

# Undisciplined Local Clock.

# fudge 127.127.1.0 stratum 9

driftfile /var/lib/ntp/drift/ntp.drift # path for drift file

broadcastdelay 0.008

logfile /var/log/ntp # alternate log file

keys /etc/ntp.keys # path for keys file

trustedkey 1 # define trusted keys

requestkey 1 # key (7) for accessing server variables

其中红色部分的server 192.168.142.1为物理机器（网关）的IP地址，至于如何在WIN7操作系统上配置NTP服务器，请问度娘。

配置ntp服务为开机自动启动。

node01:~ # chkconfig -a ntp

ntp 0:off 1:off 2:off 3:on 4:off 5:on 6:off

七、配置ntp客户端(node02)

NTP客户端为node02虚拟机，配置文件也为/etc/ntp.conf,内容如下：

tinker panic 0

restrict default kod nomodify notrap

restrict 127.0.0.1

# -- CLIENT NETWORK -------

# --- OUR TIMESERVERS -----

server 192.168.142.101 iburst

server 127.127.1.0

# Undisciplined Local Clock.

# fudge 127.127.1.0 stratum 9

driftfile /var/lib/ntp/drift/ntp.drift # path for drift file

broadcastdelay 0.008

logfile /var/log/ntp # alternate log file

keys /etc/ntp.keys # path for keys file

trustedkey 1 # define trusted keys

requestkey 1 # key (7) for accessing server variables

到此，DNS主备服务器和NTP服务器以及客户端都已经配置好了。

除了以上配置以外，还有SSH用户免密登陆、ISCSI服务器及ISCSI客户端没有配置，关于这部分内容，请参见《Vmware Workstation + Suse Linux 11 SP3 + db2 purescale V10.5 (五)》。

本文出自 “涛哥的回忆” 博客，谢绝转载！

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