Oracle rac 修改vip & scan ip

背景介绍：

现在有个需求，主机的物理机迁移，为了让业务改动最小，要修改新主库的VIP & SCAN IP，同网段的修改vip & scan比较简单

ps: 过段时间要修改物理机的网段，届时再更新！

修改vip

--修改前VIP & SCAN-IP

修改前vip最后两位为23、24

修改前scan-ip最后两位为25、20

--修改后VIP & SCAN-IP

修改后vip最后两位为248、249

修改后scan-ip最后两位为225、220

--查看修改前的/etc/hosts

root@d2-dbrac21 \~\]# cat /etc/hosts \| grep 'vip\\\|scan' 192.168.10.23 d2-dbrac21-vip 192.168.10.24 d2-dbrac22-vip 192.168.10.25 dbrac-scan 192.168.10.20 dbrac-scan --查看ip \[root@d2-dbrac21 \~\]# ip addr \| grep ens192 2: ens192: \ mtu 1500 qdisc mq state UP group default qlen 1000 inet 192.168.10.21/24 brd 192.168.10.255 scope global noprefixroute ens192 inet 192.168.10.23/24 brd 192.168.10.255 scope global secondary ens192:1 inet 192.168.10.25/24 brd 192.168.10.255 scope global secondary ens192:2 --查看集群设置 \[root@d2-dbrac21 \~\]# srvctl config nodeapps Network 1 exists Subnet IPv4: 192.168.10.0/255.255.255.0/ens192, 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 d2-dbrac21 VIP Name: d2-dbrac21-vip VIP IPv4 Address: 192.168.10.23 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 d2-dbrac22 VIP Name: d2-dbrac22-vip VIP IPv4 Address: 192.168.10.24 VIP IPv6 Address: VIP is enabled. VIP is individually enabled on nodes: VIP is individually disabled on nodes: ONS exists: Local port 6100, remote port 6200, EM port 2016, Uses SSL false ONS is enabled ONS is individually enabled on nodes: ONS is individually disabled on nodes: 只更改 VIP \& SCAN IP 后的/etc/hosts，两个节点都要改 \[root@d2-dbrac21 \~\]# cat /etc/hosts \| grep 'vip\\\|scan' 192.168.10.248 d2-dbrac21-vip 192.168.10.249 d2-dbrac22-vip 192.168.10.225 dbrac-scan 192.168.10.220 dbrac-scan --重启集群节点，两个节点，可以轮流重启 crsctl stop crs crsctl start crs --查看重启后的节点信息,vip 自动更改了 \[root@d2-dbrac21 \~\]# ip addr \| grep ens192 2: ens192: \ mtu 1500 qdisc mq state UP group default qlen 1000 inet 192.168.10.21/24 brd 192.168.10.255 scope global noprefixroute ens192 inet 192.168.10.248/24 brd 192.168.10.255 scope global secondary ens192:1 inet 192.168.10.20/24 brd 192.168.10.255 scope global secondary ens192:2 \[root@d2-dbrac22 \~\]# ip ad \| grep ens192 2: ens192: \ mtu 1500 qdisc mq state UP group default qlen 1000 inet 192.168.10.22/24 brd 192.168.10.255 scope global noprefixroute ens192 inet 192.168.10.249/24 brd 192.168.10.255 scope global secondary ens192:1 inet 192.168.10.20/24 brd 192.168.10.255 scope global secondary ens192:2 --查看集群中节点信息 \[root@d2-dbrac21 \~\]# srvctl config nodeapps Network 1 exists Subnet IPv4: 192.168.10.0/255.255.255.0/ens192, 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 d2-dbrac21 VIP Name: d2-dbrac21-vip VIP IPv4 Address: 192.168.10.248 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 d2-dbrac22 VIP Name: d2-dbrac22-vip VIP IPv4 Address: 192.168.10.249 VIP IPv6 Address: VIP is enabled. VIP is individually enabled on nodes: VIP is individually disabled on nodes: ONS exists: Local port 6100, remote port 6200, EM port 2016, Uses SSL false ONS is enabled ONS is individually enabled on nodes: ONS is individually disabled on nodes: ### 修改scan-ip --停止监听 srvctl stop scan_listener srvctl stop scan --查看更改前的scan srvctl config scan \[root@d2-dbrac21 \~\]# srvctl config scan SCAN name: dbrac-scan, Network: 1 Subnet IPv4: 192.168.10.0/255.255.255.0/ens192, static Subnet IPv6: SCAN 1 IPv4 VIP: 192.168.10.20 SCAN VIP is enabled. SCAN 2 IPv4 VIP: 192.168.10.25 SCAN VIP is enabled. --修改在CRS中SCAN的配置 srvctl modify scan -n dbrac-scan --验证修改结果 srvctl config scan \[root@d2-dbrac21 \~\]# srvctl config scan SCAN name: dbrac-scan, Network: 1 Subnet IPv4: 192.168.10.0/255.255.255.0/ens192, static Subnet IPv6: SCAN 1 IPv4 VIP: 192.168.10.225 SCAN VIP is enabled. SCAN 2 IPv4 VIP: 192.168.10.220 SCAN VIP is enabled. --启动监听，启动scan listener时候，自动把scan也给启动了 srvctl start scan_listener --查看启动后状态 srvctl status scan_listener srvctl status scan \[root@d2-dbrac21 \~\]# srvctl status scan_listener SCAN Listener LISTENER_SCAN1 is enabled SCAN listener LISTENER_SCAN1 is running on node d2-dbrac22 SCAN Listener LISTENER_SCAN2 is enabled SCAN listener LISTENER_SCAN2 is running on node d2-dbrac21 \[root@d2-dbrac21 \~\]# srvctl status scan SCAN VIP scan1 is enabled SCAN VIP scan1 is running on node d2-dbrac22 SCAN VIP scan2 is enabled SCAN VIP scan2 is running on node d2-dbrac21 --查看ip ip addr \| grep ens192 \[root@d2-dbrac21 \~\]# ip addr \| grep ens192 2: ens192: \ mtu 1500 qdisc mq state UP group default qlen 1000 inet 192.168.10.21/24 brd 192.168.10.255 scope global noprefixroute ens192 inet 192.168.10.248/24 brd 192.168.10.255 scope global secondary ens192:1 inet 192.168.10.220/24 brd 192.168.10.255 scope global secondary ens192:2 --查看集群中scan信息 \[root@d2-dbrac21 \~\]# srvctl config scan SCAN name: dbrac-scan, Network: 1 Subnet IPv4: 192.168.10.0/255.255.255.0/ens192, static Subnet IPv6: SCAN 1 IPv4 VIP: 192.168.10.225 SCAN VIP is enabled. SCAN 2 IPv4 VIP: 192.168.10.220 SCAN VIP is enabled.