oracle 11gR2 rac scan ip 配置(DNS模式)

oracle 11gR2 grid的集群,scan ip 采用的是DNS模式,安装完成后

状态如下：

[grid@rac1 bin]$ ./crs_stat -t

Name Type Target State Host

------------------------------------------------------------

ora.DATA.dg ora....up.type ONLINE ONLINE rac1

ora....ER.lsnr ora....er.type ONLINE ONLINE rac1

ora....N1.lsnr ora....er.type ONLINE ONLINE rac2

ora....N2.lsnr ora....er.type ONLINE ONLINE rac1

ora....N3.lsnr ora....er.type ONLINE ONLINE rac1

ora.asm ora.asm.type ONLINE ONLINE rac1

ora.eons ora.eons.type ONLINE ONLINE rac1

ora.gsd ora.gsd.type OFFLINE OFFLINE

ora....network ora....rk.type ONLINE ONLINE rac1

ora.oc4j ora.oc4j.type OFFLINE OFFLINE

ora.ons ora.ons.type ONLINE ONLINE rac1

ora....SM1.asm application ONLINE ONLINE rac1

ora....C1.lsnr application ONLINE ONLINE rac1

ora.rac1.gsd application OFFLINE OFFLINE

ora.rac1.ons application ONLINE ONLINE rac1

ora.rac1.vip ora....t1.type ONLINE ONLINE rac1

ora....SM2.asm application ONLINE ONLINE rac2

ora....C2.lsnr application ONLINE ONLINE rac2

ora.rac2.gsd application OFFLINE OFFLINE

ora.rac2.ons application ONLINE ONLINE rac2

ora.rac2.vip ora....t1.type ONLINE ONLINE rac2

ora....ry.acfs ora....fs.type ONLINE ONLINE rac1

ora.scan1.vip ora....ip.type ONLINE ONLINE rac2

ora.scan2.vip ora....ip.type ONLINE ONLINE rac1

ora.scan3.vip ora....ip.type ONLINE ONLINE rac1

[grid@rac1 bin]$

[root@rac2 oraInventory]# ps -ef|grep tns

grid 17073 1 0 18:07 ? 00:00:00 /u01/app/11.2.0/grid/bin/tnslsnr LISTENER_SCAN1 -inherit

grid 17654 1 0 18:10 ? 00:00:00 /u01/app/11.2.0/grid/bin/tnslsnr LISTENER -inherit

root 18842 8996 0 18:18 pts/3 00:00:00 grep tns

[root@rac2 oraInventory]#

[root@rac1 logs]# ps -ef|grep tns

grid 9612 1 0 18:02 ? 00:00:00 /u01/app/11.2.0/grid/bin/tnslsnr LISTENER_SCAN2 -inherit

grid 9624 1 0 18:02 ? 00:00:00 /u01/app/11.2.0/grid/bin/tnslsnr LISTENER_SCAN3 -inherit

grid 10355 1 0 18:09 ? 00:00:00 /u01/app/11.2.0/grid/bin/tnslsnr LISTENER -inherit

root 11822 31363 0 18:23 pts/2 00:00:00 grep tns

[root@rac1 logs]#

可以看到两个节点当中，一个节点有两个scan ip,一个节点只有1个scan ip

节点1 ip地址如下：

[root@rac1 logs]# ifconfig -a

eth0 Link encap:Ethernet HWaddr 00:14:5E:69:75:94

inet addr:192.168.3.227 Bcast:192.168.3.255 Mask:255.255.255.0

inet6 addr: fe80::214:5eff:fe69:7594/64 Scope:Link

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:1752657 errors:0 dropped:0 overruns:0 frame.:0

TX packets:3041821 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:376820166 (359.3 MiB) TX bytes:4196605342 (3.9 GiB)

Interrupt:169

eth0:1 Link encap:Ethernet HWaddr 00:14:5E:69:75:94

inet addr:192.168.3.229 Bcast:192.168.3.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

Interrupt:169

eth0:3 Link encap:Ethernet HWaddr 00:14:5E:69:75:94

inet addr:192.168.3.233 Bcast:192.168.3.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

Interrupt:169

eth0:4 Link encap:Ethernet HWaddr 00:14:5E:69:75:94

inet addr:192.168.3.232 Bcast:192.168.3.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

Interrupt:169

节点2 ip地址如下：

[root@rac2 oraInventory]# ifconfig -a

eth0 Link encap:Ethernet HWaddr 00:13:21:64:CA:E9

inet addr:192.168.3.228 Bcast:192.168.3.255 Mask:255.255.255.0

inet6 addr: fe80::213:21ff:fe64:cae9/64 Scope:Link

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

RX packets:2593442 errors:0 dropped:0 overruns:0 frame.:0

TX packets:1319323 errors:0 dropped:0 overruns:0 carrier:0

collisions:0 txqueuelen:1000

RX bytes:3798507464 (3.5 GiB) TX bytes:101990445 (97.2 MiB)

Interrupt:98

eth0:1 Link encap:Ethernet HWaddr 00:13:21:64:CA:E9

inet addr:192.168.3.231 Bcast:192.168.3.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

Interrupt:98

eth0:2 Link encap:Ethernet HWaddr 00:13:21:64:CA:E9

inet addr:192.168.3.230 Bcast:192.168.3.255 Mask:255.255.255.0

UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1

Interrupt:98

[root@rac2 oraInventory]# nslookup racnode-cluster-scan.racnode.com

Server: 192.168.3.32

Address: 192.168.3.32#53

Name: racnode-cluster-scan.racnode.com

Address: 192.168.3.232

Name: racnode-cluster-scan.racnode.com

Address: 192.168.3.233

Name: racnode-cluster-scan.racnode.com

Address: 192.168.3.231

[root@rac2 oraInventory]#