{"id":3510,"date":"2012-06-09T04:12:09","date_gmt":"2012-06-09T08:12:09","guid":{"rendered":"http:\/\/onlineappsdba.com\/?p=3510"},"modified":"2012-06-09T04:14:00","modified_gmt":"2012-06-09T08:14:00","slug":"how-to-change-cluster-interconnect-adapter-ip-address-in-11gr2-rac","status":"publish","type":"post","link":"https:\/\/onlineappsdba.com\/index.php\/2012\/06\/09\/how-to-change-cluster-interconnect-adapter-ip-address-in-11gr2-rac\/","title":{"rendered":"How to change Cluster Interconnect Adapter IP Address in 11gR2 RAC"},"content":{"rendered":"

Cluster interconnect:<\/strong> It’s a private interface used for the cluster-ware to provide inter-instance or
\nCache Fusion communication. This is also called as private IP address.<\/p>\n

We can change it at any stage, it require full outage.
\nStep 1: Determine private IP address<\/strong><\/p>\n

[oracle@test1 ~]$ oifcfg getif
\neth0\u00a0 192.168.1.0\u00a0 global\u00a0 public
\neth1\u00a0 10.0.0.0\u00a0 global\u00a0 cluster_interconnect<\/p>\n

Step 2: Determine Ethernet card name<\/strong><\/p>\n

[oracle@test1 ~]$ oifcfg iflist
\neth0\u00a0 192.168.1.0
\neth1\u00a0 10.0.0.0<\/p>\n

Step 3: Add new interface Subnet ID specification:<\/strong><\/p>\n

[oracle@test1 ~]$ oifcfg setif -global eth1\/172.16.0.0:cluster_interconnect<\/p>\n

Step 4 : Verify the changes:<\/strong><\/p>\n

[oracle@test1 ~]$ oifcfg getif
\neth0\u00a0 192.168.1.0\u00a0 global\u00a0 public
\neth1\u00a0 10.0.0.0\u00a0 global\u00a0 cluster_interconnect
\neth1\u00a0 172.16.0.0\u00a0 global\u00a0 cluster_interconnect<\/p>\n

Step 5: Stop cluster on all node:<\/strong><\/p>\n

[oracle@test1 ~]# sudo \/u01\/app\/11.2.0\/grid\/bin\/crsctl stop cluster -all<\/p>\n

Step 6: Modify netwrok address on network adapter of each box:<\/strong><\/p>\n

[root@test1 ~]# ifconfig eth1 172.16.0.10 netmask 255.255.0.0 broadcast 172.16.255.255
\n[root@test2 ~]# ifconfig eth1 172.16.0.11 netmask 255.255.0.0 broadcast 172.16.255.255<\/p>\n

Step 7: Modify \/etc\/hosts file on each node.<\/strong><\/p>\n

Delete entry of old private interconnect and add new private interconnect on each node.<\/p>\n

[root@test1 ~]# cat \/etc\/hosts
\n# Do not remove the following line, or various programs
\n# that require network functionality will fail.
\n127.0.0.1\u00a0\u00a0 \u00a0localhost.localdomain\u00a0\u00a0 \u00a0localhost<\/p>\n

#10.10.10.105\u00a0\u00a0 \u00a0test1-priv.localdomain\u00a0\u00a0 \u00a0test1-priv
\n172.16.0.10\u00a0\u00a0 \u00a0test1-priv.localdomain\u00a0\u00a0 \u00a0test1-priv<\/p>\n

#10.10.10.107\u00a0\u00a0\u00a0 test2-priv.localdomain\u00a0 test2-priv
\n172.16.0.11\u00a0\u00a0\u00a0 test2-priv.localdomain\u00a0 test2-priv<\/p>\n

Step 8: Start cluster on each node<\/strong><\/p>\n

[root@test1 ~]# \/u01\/app\/11.2.0\/grid\/bin\/crsctl start cluster -all<\/p>\n

Step 9: Delete old entry of private interconnect from cluster registry<\/strong><\/p>\n

[oracle@test1 ~]$ oifcfg delif -global eth1\/10.0.0.0:cluster_interconnect<\/p>\n

Step 10: Verify the changes:<\/strong><\/p>\n

[oracle@test1 ~]$ oifcfg getif
\neth0\u00a0 192.168.1.0\u00a0 global\u00a0 public
\neth1\u00a0 172.16.0.0\u00a0 global\u00a0 cluster_interconnect<\/p>\n

You can also verify:<\/p>\n

[root@test1 ~]# ifconfig eth1
\neth1\u00a0\u00a0\u00a0\u00a0\u00a0 Link encap:Ethernet\u00a0 HWaddr 00:0C:29:F9:B9:26
\ninet addr:172.16.0.10\u00a0 Bcast:172.16.255.255\u00a0 Mask:255.255.0.0
\ninet6 addr: fe80::20c:29ff:fef9:b926\/64 Scope:Link
\nUP BROADCAST RUNNING MULTICAST\u00a0 MTU:1500\u00a0 Metric:1
\nRX packets:397513 errors:0 dropped:0 overruns:0 frame:0
\nTX packets:338579 errors:0 dropped:0 overruns:0 carrier:0
\ncollisions:0 txqueuelen:1000
\nRX bytes:247976796 (236.4 MiB)\u00a0 TX bytes:159435440 (152.0 MiB)
\nBase address:0x2040 Memory:d8940000-d8960000
\n[oracle@test1 ~]$ ping test1-priv
\nPING test1-priv.localdomain (172.16.0.10) 56(84) bytes of data.
\n64 bytes from test1-priv.localdomain (172.16.0.10): icmp_seq=1 ttl=64 time=0.036 ms
\n64 bytes from test1-priv.localdomain (172.16.0.10): icmp_seq=2 ttl=64 time=0.015 ms<\/p>\n

— test1-priv.localdomain ping statistics —
\n2 packets transmitted, 2 received, 0% packet loss, time 999ms
\nrtt min\/avg\/max\/mdev = 0.015\/0.025\/0.036\/0.011 ms<\/p>\n","protected":false},"excerpt":{"rendered":"

Cluster interconnect: It’s a private interface used for the cluster-ware to provide inter-instance or Cache Fusion communication. This is also […]<\/p>\n","protected":false},"author":115,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[36],"tags":[],"class_list":["post-3510","post","type-post","status-publish","format-standard","hentry","category-rac"],"yoast_head":"\nHow to change Cluster Interconnect Adapter IP Address in 11gR2 RAC -<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/onlineappsdba.com\/index.php\/2012\/06\/09\/how-to-change-cluster-interconnect-adapter-ip-address-in-11gr2-rac\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to change Cluster Interconnect Adapter IP Address in 11gR2 RAC -\" \/>\n<meta property=\"og:description\" content=\"Cluster interconnect: It’s a private interface used for the cluster-ware to provide inter-instance or Cache Fusion communication. 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