云贝教育 | 【技术文章】Oracle 19c RAC修改网络
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原文链接：【Oracle 19c】Oracle 19c RAC修改网络 - 课程体系 - 云贝教育 (yunbee.net)
变更目标
| ip类型 |
节点 |
原IP |
目标IP |
| PUBLIC IP |
racdb01 |
192.168.2.60 |
192.168.2.160 |
| racdb02 |
192.168.2.62 |
192.168.2.162 |
|
| VIP |
racdb01 |
192.168.2.61 |
192.168.2.161 |
| racdb02 |
192.168.2.63 |
192.168.2.163 |
|
| SCAN-IP |
racdb01 racdb02 |
192.168.2.64 |
192.168.2.164 |
生产环境做变更，对核心文件需要进行备份
gpnp备份：
两个节点都要操作
cd $ORACLE_HOMEgpnp/profiles/peer/
cp profile.xml profile.xml.bak 修改任意IP前，需对/etc/hosts文件进行修改，不再赘述。
一、修改puclib ip
1.1 查看当前配置
[grid@racdb01 ~]$ oifcfg getif
ens33 192.168.2.0 global public
ens36 10.10.10.0 global cluster_interconnect,asm 1.2 查看当前网卡
ens38是我们新指定的PUBLIC网卡
一节点
ens38: flags=4163 mtu 1500
inet 192.168.2.160 netmask 255.255.255.0 broadcast 192.168.2.255 二节点
ens38: flags=4163 mtu 1500
inet 192.168.2.162 netmask 255.255.255.0 broadcast 192.168.2.255 1.3 删除原公网配置
oifcfg delif -global ens33/192.168.2.0 1.4 添加公网配置
示例 oifcfg setif -global <私有网卡名>/<新私有网段>:cluster_interconnect,asm
oifcfg setif -global ens38/192.168.2.0:public1.5 检查
[grid@racdb01 ~]$ oifcfg getif
ens36 10.10.10.0 global cluster_interconnect,asm
ens38 192.168.2.0 global public二、变更VIP
2.1 查看当前VIP配置
[grid@racdb02 ~]$ srvctl config nodeapps -a
Network 1 exists
Subnet IPv4: 192.168.2.0/255.255.255.0/ens33, static
Subnet IPv6:
Ping Targets:
Network is enabled
Network is individually enabled on nodes:
Network is individually disabled on nodes:
VIP exists: network number 1, hosting node racdb01
VIP Name: racdb01-vip
VIP IPv4 Address: 192.168.2.61
VIP IPv6 Address:
VIP is enabled.
VIP is individually enabled on nodes:
VIP is individually disabled on nodes:
VIP exists: network number 1, hosting node racdb02
VIP Name: racdb02-vip
VIP IPv4 Address: 192.168.2.63
VIP IPv6 Address:
VIP is enabled.
VIP is individually enabled on nodes:
VIP is individually disabled on nodes: 2.2 查看当前监听地址
[grid@racdb02 ~]$ lsnrctl status
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.2.62)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.2.63)(PORT=1521)))
Services Summary... 2.3 关闭两节点上的VIP及监听
1）关闭两节点vip及监听
srvctl stop listener -n racdb01
srvctl stop vip -n racdb0
srvctl stop listener -n racdb02
srvctl stop vip -n racdb02
或
srvctl stop vip -n racdb01 -f
srvctl stop vip -n racdb02 -f 停掉vip之后，两个节点上的vip地址消失。
以二节点为例
[grid@racdb02 ~]$ ifconfig -a
ens33: flags=4163 mtu 1500
inet 192.168.2.62 netmask 255.255.255.0 broadcast 192.168.2.255
inet6 fe80::7abc:4983:ac14:e0dd prefixlen 64 scopeid 0x20
ether 00:0c:29:12:08:eb txqueuelen 1000 (Ethernet)
RX packets 1788 bytes 213310 (208.3 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 1265 bytes 204969 (200.1 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens36: flags=4163 mtu 1500
inet 10.10.10.38 netmask 255.255.255.0 broadcast 10.10.10.255 正常情况下
[oracle@racdb01 dbs]$ ifconfig -a
ens33: flags=4163 mtu 1500
inet 192.168.2.60 netmask 255.255.255.0 broadcast 192.168.2.255
inet6 fe80::a22b:7bcb:ba5b:566c prefixlen 64 scopeid 0x20
ether 00:0c:29:a5:2b:c7 txqueuelen 1000 (Ethernet)
RX packets 1197951 bytes 1357345599 (1.2 GiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 35190 bytes 7038721 (6.7 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
ens33:1: flags=4163 mtu 1500
inet 192.168.2.61 netmask 255.255.255.0 broadcast 192.168.2.255
ether 00:0c:29:a5:2b:c7 txqueuelen 1000 (Ethernet) 2.4 根据VIP配置信息，修改VIP
格式： srvctl modify nodeapps -n -A /255.255.255.0/<网卡>
cd /u01/app/19.3.0/grid/
bin/srvctl modify nodeapps -n racdb01 -A 192.168.2.161/255.255.255.0/ens33
bin/srvctl modify nodeapps -n racdb02 -A 192.168.2.163/255.255.255.0/ens33 2.5 修改/etc/hosts
两个节点改成以下信息
############Virtual IP############
192.168.2.161 racdb01-vip
192.168.2.163 racdb02-vip2.6 验证VIP
srvctl config nodeapps -a
srvctl config vip -n racdb01
srvctl config vip -n racdb02
ip a查看监听
lsnrctl status三、变更SCAN-IP
3.1 关闭SCAN服务及监听
关闭scan监听
srvctl stop scan_listener
srvctl stop scan
查看
srvctl status scan_listener3.2 修改/etc/hosts
两个节点均要操作
############Scan IP###############
192.168.2.164 racdb-scan3.3 修改SCAN IP
格式srvctl modify scan -n
srvctl modify scan -n racdb-scan 3.4 启动scan服务及监听
srvctl start scan_listener
srvctl start scan3.5 检查
检查监听
[grid@racdb02 ~]$ lsnrctl status listener_scan
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.2.164)(PORT=1521)))
Service "ORCL" has 1 instance(s).
Instance "YBDBINST1", status READY, has 1 handler(s) for this service...
Service "yunnbeedXDB" has 1 instance(s).
Instance "YBDBINST1", status READY, has 1 handler(s) for this service...检查服务
[grid@racdb02 ~]$ srvctl status scan_listener
SCAN Listener LISTENER_SCAN1 is enabled
SCAN listener LISTENER_SCAN1 is running on node racdb02四、私网变更
变更类型：
- 配置双私网
- 变更当前私网IP
4.1 添加私网网卡
oifcfg getif
oifcfg setif -global ens38/10.10.20.0:cluster_interconnect
oifcfg getif实验1：关闭节点2上双私网中的一个，观察集群日志
4.2. 变更私网
1、添加
oifcfg setif -global ens38/10.10.20.0:cluster_interconnect,asm
2、查看
[grid@racdb01 ~]$ oifcfg getif
ens36 10.10.10.0 global cluster_interconnect,asm
ens39 192.168.2.0 global public
ens38 10.10.20.0 global cluster_interconnect,asm
3、加入一个新的 ASMLISTENE
srvctl add listener -asmlistener -l ASMNEWLSNR_ASM -subnet 10.10.20.0
4、查看当前的ASMLISNTER
[grid@racdb02 ~]$ srvctl status asmnetwork
ASM network is running on racdb02,racdb01
[grid@racdb01 ~]$ srvctl config asmnetwork
ASM network 1 exists
Subnet IPv4: 10.10.10.0//
Subnet IPv6:
Network is enabled
Network is individually enabled on nodes:
Network is individually disabled on nodes:
[grid@racdb01 ~]$ srvctl config listener -asmlistener
Name: ASMNET1LSNR_ASM
Type: ASM Listener
Owner: grid
Subnet: 10.10.10.0
Home:
End points: TCP:1525
Listener is enabled.
Listener is individually enabled on nodes:
Listener is individually disabled on nodes:
5、删除现有的ASMLISTENER
[grid@racdb01 ~]$ srvctl update listener -listener ASMNET1LSNR_ASM -asm -remove -force
lsnrctl stop ASMNET1LSNR_ASM
6、查看
[grid@racdb01 ~]$ srvctl config listener -asmlistener
Name: ASMNEWLSNR_ASM
Type: ASM Listener
Owner: grid
Subnet: 10.10.20.0
Home:
End points: TCP:1526
Listener is enabled.
Listener is individually enabled on nodes:
Listener is individually disabled on nodes:
4.2 删除私网
oifcfg delif -global ens38/10.10.20.0