手工模拟vip切换

环境:

OS:Centos 7

DB:11.2.0.4

 

1.在rac1上查看各节点的信息
[grid@host01 ~]$ crs_stat -t -v
Name Type R/RA F/FT Target State Host
----------------------------------------------------------------------
ora.DATA.dg ora....up.type 0/5 0/ ONLINE ONLINE host01
ora....TEST.dg ora....up.type 0/5 0/ ONLINE ONLINE host01
ora....ER.lsnr ora....er.type 0/5 0/ ONLINE ONLINE host01
ora....N1.lsnr ora....er.type 0/5 0/0 ONLINE ONLINE host01
ora.OCR.dg ora....up.type 0/5 0/ ONLINE ONLINE host01
ora.REDO.dg ora....up.type 0/5 0/ ONLINE ONLINE host01
ora.asm ora.asm.type 0/5 0/ ONLINE ONLINE host01
ora.cvu ora.cvu.type 0/5 0/0 ONLINE ONLINE host01
ora.gsd ora.gsd.type 0/5 0/ OFFLINE OFFLINE
ora....SM1.asm application 0/5 0/0 ONLINE ONLINE host01
ora....01.lsnr application 0/5 0/0 ONLINE ONLINE host01
ora.host01.gsd application 0/5 0/0 OFFLINE OFFLINE
ora.host01.ons application 0/3 0/0 ONLINE ONLINE host01
ora.host01.vip ora....t1.type 0/0 0/0 ONLINE ONLINE host01
ora....SM2.asm application 0/5 0/0 ONLINE ONLINE host02
ora....02.lsnr application 0/5 0/0 ONLINE ONLINE host02
ora.host02.gsd application 0/5 0/0 OFFLINE OFFLINE
ora.host02.ons application 0/3 0/0 ONLINE ONLINE host02
ora.host02.vip ora....t1.type 0/0 0/0 ONLINE ONLINE host02
ora....network ora....rk.type 0/5 0/ ONLINE ONLINE host01
ora.oc4j ora.oc4j.type 0/1 0/2 ONLINE ONLINE host01
ora.ons ora.ons.type 0/3 0/ ONLINE ONLINE host01
ora.scan1.vip ora....ip.type 0/0 0/0 ONLINE ONLINE host01
ora.slnngk.db ora....se.type 0/2 0/1 ONLINE ONLINE host01
ora...._s1.svc ora....ce.type 0/0 0/0 ONLINE ONLINE host01
ora...._s2.svc ora....ce.type 0/0 0/0 ONLINE ONLINE host01

2.模拟停掉rac1上的vip
[root@host01 ~]# ifconfig -a
enp0s3: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.56.141 netmask 255.255.255.0 broadcast 192.168.56.255
inet6 fe80::755d:3751:170:bda2 prefixlen 64 scopeid 0x20<link>
ether 08:00:27:f5:de:7d txqueuelen 1000 (Ethernet)
RX packets 2492 bytes 245829 (240.0 KiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 2276 bytes 317323 (309.8 KiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

enp0s3:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.56.188 netmask 255.255.255.0 broadcast 192.168.56.255
ether 08:00:27:f5:de:7d txqueuelen 1000 (Ethernet)

enp0s3:2: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.56.131 netmask 255.255.255.0 broadcast 192.168.56.255
ether 08:00:27:f5:de:7d txqueuelen 1000 (Ethernet)

enp0s8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 172.16.1.3 netmask 255.255.255.0 broadcast 172.16.1.255
inet6 fe80::a00:27ff:fe11:d9db prefixlen 64 scopeid 0x20<link>
ether 08:00:27:11:d9:db txqueuelen 1000 (Ethernet)
RX packets 132716 bytes 80144376 (76.4 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 167510 bytes 182900731 (174.4 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

enp0s8:1: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 169.254.223.135 netmask 255.255.0.0 broadcast 169.254.255.255
ether 08:00:27:11:d9:db txqueuelen 1000 (Ethernet)

lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1 (Local Loopback)
RX packets 54022 bytes 22611081 (21.5 MiB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 54022 bytes 22611081 (21.5 MiB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

host文件配置信息
[root@host01 ~]# more /etc/hosts
127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4
::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

192.168.56.141 host01
192.168.56.142 host02
192.168.56.131 host01-vip
192.168.56.132 host02-vip
172.16.1.3 host01-priv
172.16.1.4 host02-priv
192.168.56.188 rac-scan

模拟停掉
[root@host01 ~]# ifconfig enp0s3:2 down

可以看到目前是failedover

[grid@host01 ~]$ crsctl stat res -t
--------------------------------------------------------------------------------
NAME TARGET STATE SERVER STATE_DETAILS
--------------------------------------------------------------------------------
Local Resources
--------------------------------------------------------------------------------
ora.DATA.dg
ONLINE ONLINE host01
ONLINE ONLINE host02
ora.DATATEST.dg
ONLINE ONLINE host01
ONLINE ONLINE host02
ora.LISTENER.lsnr
ONLINE OFFLINE host01
ONLINE ONLINE host02
ora.OCR.dg
ONLINE ONLINE host01
ONLINE ONLINE host02
ora.REDO.dg
ONLINE ONLINE host01
ONLINE ONLINE host02
ora.asm
ONLINE ONLINE host01 Started
ONLINE ONLINE host02 Started
ora.gsd
OFFLINE OFFLINE host01
OFFLINE OFFLINE host02
ora.net1.network
ONLINE ONLINE host01
ONLINE ONLINE host02
ora.ons
ONLINE ONLINE host01
ONLINE ONLINE host02
--------------------------------------------------------------------------------
Cluster Resources
--------------------------------------------------------------------------------
ora.LISTENER_SCAN1.lsnr
1 ONLINE ONLINE host01
ora.cvu
1 ONLINE ONLINE host01
ora.host01.vip
1 ONLINE INTERMEDIATE host02 FAILED OVER
ora.host02.vip
1 ONLINE ONLINE host02
ora.oc4j
1 ONLINE ONLINE host01
ora.scan1.vip
1 ONLINE ONLINE host01
ora.slnngk.db
1 ONLINE ONLINE host01 Open
2 ONLINE ONLINE host02 Open
ora.slnngk.service_s1.svc
1 ONLINE ONLINE host02
ora.slnngk.service_s2.svc
1 ONLINE ONLINE host02

可以看到host1的vip漂移到了host2

3.手工漂移回来
等host1的网络正常后,可以手工漂移回来
[grid@host01 ~]$ srvctl relocate vip -help
Relocate VIP from its current node to another node of the cluster.

Usage: srvctl relocate vip -i <vip_name> [-n <node_name>] [-f] [-v]
-i <vip_name> VIP name ##这个名字是实例主机名
-n <node_name> Target node name to which to relocate
-f Force relocation
-v Verbose output
-h Print usage

手工漂移回来
srvctl relocate vip -i host01 -n host01

 

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