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标题：hosts无效内容未注释导致RAC安装OUI的Network Interface Usage报INS-41112

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

安装AIX RAC过程中,在OUI的Network Interface Usage报INS-41112,从而使得安装无法继续
ins-41112
2

错误记录摘要

Cause - Installer has detected that network interface en6 does not maintain connectivity on all cluster nodes.  
Action - Ensure that the chosen interface has been configured across all cluster nodes.  Additional Information:
Summary of the failed nodes xifenfei01  
- PRVF-4190 : Verification of the hosts config file failed

hosts解析配置

10.70.89.68     xifenfei01
10.70.89.69     xifenfei01-vip
10.70.89.100    xifenfei01-priv
10.70.89.71     xifenfei02
10.70.89.72     xifenfei02-vip
10.70.89.101    xifenfei02-priv
10.70.89.79     xifenfei-scan

网卡配置

xifenfei01:/u01/soft/grid> ifconfig -a
en7: flags=1e084863,c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),LARGESEND,CHAIN>
        inet 10.70.89.100 netmask 0xffffffe0 broadcast 10.70.89.127
         tcp_sendspace 131072 tcp_recvspace 65536 rfc1323 0
en6: flags=1e084863,c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),LARGESEND,CHAIN>
        inet 10.70.89.68 netmask 0xffffffe0 broadcast 10.70.89.95
         tcp_sendspace 131072 tcp_recvspace 65536 rfc1323 0
lo0: flags=e08084b,c0<UP,BROADCAST,LOOPBACK,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,LARGESEND,CHAIN>
        inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255
        inet6 ::1%1/0
         tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1

xifenfei02/#ifconfig -a
en6: flags=1e084863,c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),LARGESEND,CHAIN>
        inet 10.70.89.71 netmask 0xffffffe0 broadcast 10.70.89.95
         tcp_sendspace 131072 tcp_recvspace 65536 rfc1323 0
en7: flags=1e084863,c0<UP,BROADCAST,NOTRAILERS,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,CHECKSUM_OFFLOAD(ACTIVE),LARGESEND,CHAIN>
        inet 10.70.89.101 netmask 0xffffffe0 broadcast 10.70.89.127
         tcp_sendspace 131072 tcp_recvspace 65536 rfc1323 0
lo0: flags=e08084b,c0<UP,BROADCAST,LOOPBACK,RUNNING,SIMPLEX,MULTICAST,GROUPRT,64BIT,LARGESEND,CHAIN>
        inet 127.0.0.1 netmask 0xff000000 broadcast 127.255.255.255
        inet6 ::1%1/0
         tcp_sendspace 131072 tcp_recvspace 131072 rfc1323 1

xifenfei01/asmdisks#netstat -in 
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll 
en7 1500 link#2 0.11.25.bd.b8.7a 107 0 132 2 0 
en7 1500 10.70.89.96 10.70.89.100 107 0 132 2 0 
en6 1500 link#3 0.11.25.bd.a8.93 50015 0 36963 2 0 
en6 1500 10.70.89.64 10.70.89.68 50015 0 36963 2 0 
lo0 16896 link#1 1589 0 1588 0 0 
lo0 16896 127 127.0.0.1 1589 0 1588 0 0 
lo0 16896 ::1%1 1589 0 1588 0 0

xifenfei02/asmdisks#netstat -in 
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll 
en6 1500 link#2 0.11.25.bd.a8.a9 5401 0 3660 2 0 
en6 1500 10.70.89.64 10.70.89.71 5401 0 3660 2 0 
en7 1500 link#3 0.11.25.bd.51.d2 129 0 123 2 0 
en7 1500 10.70.89.96 10.70.89.101 129 0 123 2 0 
lo0 16896 link#1 1249 0 1249 0 0 
lo0 16896 127 127.0.0.1 1249 0 1249 0 0 
lo0 16896 ::1%1 1249 0 1249 0 0

这里可以看到网卡和IP配置是匹配,但是两台主机网卡显示顺序不一样.查看EtherChannel配置,也是正常的
4
3

网络ping测试

xifenfei01:/u01/soft/grid> ping xifenfei01-priv
PING xifenfei01-priv: (10.70.89.100): 56 data bytes
64 bytes from 10.70.89.100: icmp_seq=0 ttl=255 time=0 ms
64 bytes from 10.70.89.100: icmp_seq=1 ttl=255 time=0 ms

xifenfei02/#ping xifenfei01-priv
PING xifenfei01-priv: (10.70.89.100): 56 data bytes
64 bytes from 10.70.89.100: icmp_seq=0 ttl=255 time=0 ms
64 bytes from 10.70.89.100: icmp_seq=1 ttl=255 time=0 ms

使用runcluvfy.sh检测网络配置

./runcluvfy.sh comp nodecon -i en7 -n xifenfei01-priv,xifenfei02-priv -verbose

xifenfei01:/u01/soft/grid> ./runcluvfy.sh comp nodecon -i en7 -n xifenfei01-priv,xifenfei02-priv -verbose

Verifying node connectivity 

Checking node connectivity...

Checking hosts config file...
  Node Name     Status                    Comment                 
  ------------  ------------------------  ------------------------
  xifenfei02-priv  passed                    successful              
  xifenfei01-priv  failed                    Invalid Entry           

ERROR: 
PRVF-4190 : Verification of the hosts config file failed


Interface information for node "xifenfei02-priv"
 Name   IP Address      Subnet          Gateway         Def. Gateway    HW Address        MTU   
 ------ --------------- --------------- --------------- --------------- ----------------- ------
 en6    10.70.89.71     10.70.89.64     10.70.89.71     10.70.89.65     00:11:25:BD:A8:A9 1500  
 en7    10.70.89.101    10.70.89.96     10.70.89.101    10.70.89.65     00:11:25:BD:51:D2 1500  


Interface information for node "xifenfei01-priv"
 Name   IP Address      Subnet          Gateway         Def. Gateway    HW Address        MTU   
 ------ --------------- --------------- --------------- --------------- ----------------- ------
 en7    10.70.89.100    10.70.89.96     10.70.89.100    10.70.89.65     00:11:25:BD:B8:7A 1500  
 en6    10.70.89.68     10.70.89.64     10.70.89.68     10.70.89.65     00:11:25:BD:A8:93 1500  


Check: Node connectivity for interface "en7"
  Source                          Destination                     Connected?      
  ------------------------------  ------------------------------  ----------------
  xifenfei02-priv[10.70.89.101]     xifenfei01-priv[10.70.89.100]     yes             
Result: Node connectivity passed for interface "en7"


Check: TCP connectivity of subnet "10.70.89.96"
  Source                          Destination                     Connected?      
  ------------------------------  ------------------------------  ----------------
  xifenfei01:10.70.89.68            xifenfei02-priv:10.70.89.101      passed          
  xifenfei01:10.70.89.68            xifenfei01-priv:10.70.89.100      passed          
Result: TCP connectivity check passed for subnet "10.70.89.96"

Checking subnet mask consistency...
Subnet mask consistency check passed for subnet "10.70.89.64".
Subnet mask consistency check passed for subnet "10.70.89.96".
Subnet mask consistency check passed.

Result: Node connectivity check failed


Verification of node connectivity was unsuccessful. 
Checks did not pass for the following node(s):
        xifenfei01-priv

这里显示xifenfei01-priv主机检测失败,报错为PRVF-4190,检查xifenfei01主机的hosts文件发现一处错误记录

xifenfei01/#vi /etc/hosts
"/etc/hosts" 113 lines, 3556 characters 
# @(#)47        1.1  src/bos/usr/sbin/netstart/hosts, cmdnet, bos530 7/24/91 10:
00:46
# IBM_PROLOG_BEGIN_TAG
# This is an automatically generated prolog.
#
# bos530 src/bos/usr/sbin/netstart/hosts 1.1
#
# Licensed Materials - Property of IBM
#
# (C) COPYRIGHT International Business Machines Corp. 1985,1989
# All Rights Reserved
#
# US Government Users Restricted Rights - Use, duplication or
# disclosure restricted by GSA ADP Schedule Contract with IBM Corp.

这里发现”00:46″是一个新行,而且是无效记录,除掉该行记录,继续runcluvfy.sh测试

xifenfei01:/u01/soft/grid> ./runcluvfy.sh comp nodecon -i en7 -n xifenfei01-priv,xifenfei02-priv -verbose

Verifying node connectivity 

Checking node connectivity...

Checking hosts config file...
  Node Name                             Status                  
  ------------------------------------  ------------------------
  xifenfei02-priv                         passed                  
  xifenfei01-priv                         passed                  

Verification of the hosts config file successful


Interface information for node "xifenfei02-priv"
 Name   IP Address      Subnet          Gateway         Def. Gateway    HW Address        MTU   
 ------ --------------- --------------- --------------- --------------- ----------------- ------
 en6    10.70.89.71     10.70.89.64     10.70.89.71     10.70.89.65     00:11:25:BD:A8:A9 1500  
 en7    10.70.89.101    10.70.89.96     10.70.89.101    10.70.89.65     00:11:25:BD:51:D2 1500  


Interface information for node "xifenfei01-priv"
 Name   IP Address      Subnet          Gateway         Def. Gateway    HW Address        MTU   
 ------ --------------- --------------- --------------- --------------- ----------------- ------
 en7    10.70.89.100    10.70.89.96     10.70.89.100    10.70.89.65     00:11:25:BD:B8:7A 1500  
 en6    10.70.89.68     10.70.89.64     10.70.89.68     10.70.89.65     00:11:25:BD:A8:93 1500  


Check: Node connectivity for interface "en7"
  Source                          Destination                     Connected?      
  ------------------------------  ------------------------------  ----------------
  xifenfei02-priv[10.70.89.101]     xifenfei01-priv[10.70.89.100]     yes             
Result: Node connectivity passed for interface "en7"


Check: TCP connectivity of subnet "10.70.89.96"
  Source                          Destination                     Connected?      
  ------------------------------  ------------------------------  ----------------
  xifenfei01:10.70.89.68            xifenfei02-priv:10.70.89.101      passed          
  xifenfei01:10.70.89.68            xifenfei01-priv:10.70.89.100      passed          
Result: TCP connectivity check passed for subnet "10.70.89.96"

Checking subnet mask consistency...
Subnet mask consistency check passed for subnet "10.70.89.64".
Subnet mask consistency check passed for subnet "10.70.89.96".
Subnet mask consistency check passed.

Result: Node connectivity check passed


Verification of node connectivity was successful.

除掉无效记录后,runcluvfy检查通过.OUI继续安装一切正常.
果然是由于/etc/hosts中出现无效记录,从而使得RAC安装检查无法通过,再次提醒各位安装RAC需要小心hosts文件
参考文档：PRVF-4190 Verification of the Hosts Config File Failed (Doc ID 1056025.1)
[INS-41112] Specified network interface doesnt maintain connectivity across cluster nodes. (Doc ID 1427202.1)

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