1.在rac2节点使用oracleasm找不到共享磁盘

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[root@rac2 ~]# oracleasm scandisks
Reloading disk partitions: done
Cleaning any stale ASM disks...
Scanning system for ASM disks...
[root@rac2 ~]#

解决方法:

  是因为在rac1节点格式化磁盘没有使用partprobe命令,分区没有生效

在rac1执行:

[root@rac1 ~]# partprobe

在rac2执行:

[root@rac2 ~]# /usr/sbin/oracleasm scandisks
Reloading disk partitions: done
Cleaning any stale ASM disks...
Scanning system for ASM disks...
Instantiating disk "VOL04"
Instantiating disk "VOL03"
Instantiating disk "VOL01"
Instantiating disk "VOL02"
[root@rac2 ~]# /usr/sbin/oracleasm listdisks
VOL01
VOL02
VOL03
VOL04
[root@rac2 ~]#

2.安装grid集群软件时出现ORACLE_HOME和ORACLE_BASE目录不对

错误提示:

INS-32026]The Software Location specified should not be under Oracle base location.
  CAUSE: Grid Infrastructure for a Cluster installation will assign root ownership to all parent directories of clusterware software location. As a result, all named directories in the software location path will acquire root ownership. This may create problems for subsequent installations into the same Oracle base.
  ACTION: Specify software location outside of Oracle base

解决方法:

我当前目录是:ORACLE_BASE=/home/grid

      ORACLE_HOME=/home/grid/11.2.0/grid

这样目录是不正确的,因为ORACLE_BASE和ORACLE_HOME目录要分开,ORACLE_BASE安装好后是有root权限的,而ORACLE_HOME则没有.

这样才对:ORACLE_BASE=/home/grid/app

     ORACLE_HOME=/home/grid/11.2.0/grid

3.在安装grid到最后一步出错误,是因为scan的IP问题补占用了

日志:

INFO: All nodes have same "hosts" entry defined in file "/etc/nsswitch.conf"

INFO: Check for integrity of name service switch configuration file "/etc/nsswitch.conf" passed

INFO: ERROR:

INFO: PRVG-1101 : SCAN name "scan-cluster" failed to resolve

INFO: ERROR:

INFO: PRVF-4657 : Name resolution setup check for "scan-cluster" (IP address: 192.168.3.155) failed

INFO: ERROR:

INFO: PRVF-4664 : Found inconsistent name resolution entries for SCAN name "scan-cluster"

INFO: Verification of SCAN VIP and Listener setup failed

INFO: Checking OLR integrity...

INFO: Checking OLR config file...

INFO: OLR config file check successful

INFO: Checking OLR file attributes...

INFO: OLR file check successful

解决方法:

(1).直接跳过不影响

(2),修改系统的nslookup二进制文件(http://www.ithao123.cn/content-1094742.html)

4.crs无法共享磁盘通信

错误信息:

CRS-0184: Cannot communicate with the CRS daemon.

日志信息:

2016-09-16 09:20:45.508: [  CRSPE][1175734592]{1:19372:2} Reading (12) resources

2016-09-16 09:20:45.510: [  CRSPE][1175734592]{1:19372:2} Reading (15) types

2016-09-16 09:20:46.087: [  CRSPE][1175734592]{1:19372:2} Reading (2) server pools

2016-09-16 09:20:48.321: [  OCRRAW][1171532096]proprseterror: Error in accessing physical storage [26] Marking context invalid.

2016-09-16 09:20:48.321: [  OCRRAW][1171532096]proprdc: backend_ctx->prop_ctx_tag=PROPCTXT

2016-09-16 09:20:48.325: [  OCRRAW][1171532096]proprdc: backend_ctx->prop_valid=0

2016-09-16 09:20:48.325: [  OCRRAW][1171532096]proprdc: backend_ctx->prop_boot_mode=1

解决方法:

 这是共享磁盘的问题,我是用iscsi做的共享,查看了下asm只能挂载自己在磁盘组,将共享磁盘换成虚拟机自带的磁盘共享就解决了.

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