修改RAC 的IP地址 （不包含private IP地址）
阿新 • • 發佈：2018-11-04
環境 RDBMS 11.2.0.4
修改RAC 的IP地址，包括public、VIP 、SCAN 等IP。不包含private IP 。
步驟
1 關閉庫，監聽，CRS等
2 修改/etc/hosts
3 OS層面修改IP
4 啟動CRS
5 修改public 、VIP 、SCAN 等IP
6 修改private IP -- 暫無
-- 原地址，192.168.2.x網段， 修改成192.168.1.X網段 .先不更改private
[[email protected] ~]# cat /etc/hosts 127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4 ::1 localhost localhost.localdomain localhost6 localhost6.localdomain6 # public #192.168.2.101 host01 192.168.2.102 host02 192.168.2.107 host03 #vip #192.168.2.103 host01-vip 192.168.2.104 host02-vip 192.168.2.108 host03-vip #priv #192.168.0.101 host01-priv 192.168.0.102 host02-priv 192.168.0.107 host03-priv #scan 192.168.2.111 cluster-scan
1 關閉庫， 監聽， crs 等
-- 先禁用crs隨作業系統啟動
[[email protected] grid]# crsctl disable crs;
CRS-4621: Oracle High Availability Services autostart is disabled.
[[email protected] grid]#
[[email protected] grid]# crsctl disable crs
CRS-4621: Oracle High Availability Services autostart is disabled.
[ -- 關閉資料庫
[[email protected] ~]$ srvctl status database -d racdb
Instance racdb2 is running on node host02
Instance racdb3 is running on node host03
[[email protected] ~]$ srvctl stop database -d racdb
[[email protected] ~]$ srvctl status database -d racdb
Instance racdb2 is not running on node host02
Instance racdb3 is not running on node host03
[ -- 檢視scan 資訊，原來的scan資訊是192.168.2這個網段上的
[[email protected] ~]$ srvctl config scan
SCAN name: cluster-scan, Network: 1/192.168.2.0/255.255.255.0/eth1
SCAN VIP name: scan1, IP: /cluster-scan/192.168.2.111
[[email protected] ~]$ srvctl config listener
Name: LISTENER
Network: 1, Owner: grid
Home: <CRS home>
End points: TCP:1521-- 關閉監聽，關閉crs
[[email protected] ~]$ srvctl stop listener
[[email protected] grid]# crsctl stop crs
[[email protected] grid]# crsctl stop crs2 修改/etc/hosts
3 OS 上修改網絡卡資訊
vi /etc/sysconfig/network-scripts/ifcfg-eth1
service network restart 然後在虛擬機器上重新配置網絡卡連線方式，（在宿主機上新建立一個虛擬網絡卡虛擬機器橋接在該網絡卡上）
4 啟動crs
[[email protected] grid]# crsctl start crs
CRS-4123: Oracle High Availability Services has been started.
[[email protected] grid]#
[[email protected] grid]# crsctl start crs
CRS-4123: Oracle High Availability Services has been started.
[[email protected] grid]#5 修改public 、vip 、scan ip
-- 目前看到的public IP還是192.168.2.X這個網段
[[email protected] grid]# oifcfg getif
eth1 192.168.2.0 global public
eth2 192.168.0.0 global cluster_interconnect
[[email protected] grid]#
[[email protected] grid]# oifcfg getif
eth1 192.168.2.0 global public
eth2 192.168.0.0 global cluster_interconnect
[[email protected] grid]#-- 開始修改public
[[email protected] grid]# oifcfg delif -global eth1
[[email protected] grid]# oifcfg setif -global eth1/192.168.1.0:public
[[email protected] grid]#
[[email protected] grid]# oifcfg delif -global eth1
[[email protected] grid]# oifcfg setif -global eth1/192.168.1.0:public
[[email protected] grid]#-- 再次檢視public ip， public ip已經修改過來了
[[email protected] grid]# oifcfg getif
eth2 192.168.0.0 global cluster_interconnect
eth1 192.168.1.0 global public
[[email protected] grid]#
[[email protected] grid]# oifcfg getif
eth2 192.168.0.0 global cluster_interconnect
eth1 192.168.1.0 global public
[[email protected] grid]#-- 修改VIP
-- 首先要停止資料庫和監聽
[[email protected] grid]# srvctl status vip -n host02
VIP host02-vip is enabled
VIP host02-vip is not running
[[email protected] grid]# srvctl status vip -n host03
VIP host03-vip is enabled
VIP host03-vip is not running
[[email protected] grid]#-- 檢視當前vip設定。 可以看到IP自己已經變過來了。但是顯示的網段沒有變過來。
[[email protected] grid]# olsnodes -s
host02 Active
host03 Active
[[email protected] grid]# srvctl config vip -n host03
VIP exists: /host03-vip/192.168.1.108/192.168.2.0/255.255.255.0/eth1, hosting node host03
[[email protected] grid]# srvctl config vip -n host02
VIP exists: /host02-vip/192.168.1.104/192.168.2.0/255.255.255.0/eth1, hosting node host02
[[email protected] grid]#-- 修改，則按照以下的方法.上面看到的vip是有問題的，因為每個節點上的網段不一樣，需要修改
[[email protected] grid]# srvctl modify nodeapps -n host02 -A 192.168.1.104/255.255.255.0/eth1
[[email protected] grid]# srvctl modify nodeapps -n host03 -A 192.168.1.108/255.255.255.0/eth1
[[email protected] grid]#-- 再次檢視vip ，可以看到網段已經變更過來了，是192.168.1.0
[[email protected] grid]# srvctl config vip -n host02
VIP exists: /host02-vip/192.168.1.104/192.168.1.0/255.255.255.0/eth1, hosting node host02
[[email protected] grid]# srvctl config vip -n host03
VIP exists: /host03-vip/192.168.1.108/192.168.1.0/255.255.255.0/eth1, hosting node host03
[[email protected] grid]#-- 啟動vip ，好像上面修改後，VIP就自己起來了
[[email protected] grid]# srvctl start vip -n host02
PRKO-2420 : VIP is already started on node(s): host02
[[email protected] grid]# srvctl start vip -n host03
PRKO-2420 : VIP is already started on node(s): host03
[[email protected] grid]#-- 修改監聽地址
-- 啟動監聽，因為之前host03上監聽已經起來了，所以只啟動host02上的監聽
[[email protected] grid]# srvctl start listener -n host02
[[email protected] grid]# lsnrctl status-- 檢查監聽的引數 local_listener ,remote_listener;
-- 修改scan引數
-- 檢視scan當前的資訊，可以看到scan的ip還是192.168.2這個網段
[[email protected] grid]# srvctl config scan
SCAN name: cluster-scan, Network: 1/192.168.1.0/255.255.255.0/eth1
SCAN VIP name: scan1, IP: /cluster-scan/192.168.2.111
[[email protected] grid]#
--進行修改scan ip ,並檢視scan，發現scan ip已經修改過來了
[[email protected] grid]# srvctl modify scan -n cluster-scan
[[email protected] grid]# srvctl config scan
SCAN name: cluster-scan, Network: 1/192.168.1.0/255.255.255.0/eth1
SCAN VIP name: scan1, IP: /cluster-scan/192.168.1.111
[[email protected] grid]#--連線驗證
@>conn sys/[email protected]/racdb as sysdba
Connected.
[email protected]/racdb>select open_mode from v$database;
OPEN_MODE
----------------------------------------
READ WRITE
[email protected]/racdb>END