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执行root.sh时提示ORA-15031错误解决

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Release: 2016-06-07 16:08:22
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近日处理一个Oracle Grid infrastructure(GI)安装的问题,在执行root.sh过程中失败,并显示下面错误:错误ORA-15031的提示,还是

近日处理一个Oracle Grid infrastructure(GI)安装的问题,在执行root.sh过程中失败,并显示下面错误:

Disk Group OCR creation failed with the following message:
ORA-15018: diskgroup cannot be created
ORA-15031: disk specification '/dev/vx/rdsk/dg_db01/lv_vote1' matches no disks    ORA-15031: disk specification '/dev/vx/rdsk/dg_db01/lv_vote2' matches no disks
ORA-15031: disk specification '/dev/vx/rdsk/dg_db01/lv_vote3' matches no disks
Configuration of ASM ... failed
see asmca logs at /oracle/base/cfgtoollogs/asmca for details
Did not succssfully configure and start ASM at /oracle/product/11.2.0.4/grid_1/crs/install/crsconfig_lib.pm line 6468.
/oracle/product/11.2.0.4/grid_1/perl/bin/perl -I/oracle/product/11.2.0.4/grid_1/perl/lib -I/oracle/product/11.2.0.4/grid_1/crs/install /oracle/product/11.2.0.4/grid_1/crs/install/rootcrs.pl execution failed

      错误ORA-15031的提示,还是很明显的,无法识别对应的voting磁盘,正常解决思路,就是检查磁盘是否正常挂载,权限是否正确等,需要逐项检查。在Metalink上搜索,这个错误一般都是在node2上执行root.sh会遇到,而node1都是正常的。大多是权限以及系统层面挂载出现问题。但是我这个问题,是在node1上执行root.sh就失败了。

开始各项分析检查:

1. 检查磁盘是否存在,权限是否正确,All Pass
#ls -lrt /dev/vx/rdsk/dg_db01
crw-rw----    1 grid    asmadmin    40,60000 Feb 12 10:51 lv_vote1
crw-rw----    1 grid    asmadmin    40,60001 Feb 12 10:52 lv_vote2
crw-rw----    1 grid    asmadmin    40,60002 Feb 12 10:52 lv_vote3

2. 检查asm_diskstring设置
SQL> show parameter asm_diskstring
NAME                                TYPE                              VALUE
------------------------------------ --------------------------------- ------------------------------
asm_diskstring                      string                            /dev/vx/rdsk/dg_db01

3. 并使用kfod来查看,是否能扫描到对应的磁盘,也正常
kfod asm_diskstring='/dev/vx/rdsk/dg_db01/lv_*' disks=all
--------------------------------------------------------------------------------
Disk          Size Path                                    User    Group 
================================================================================
  1:    327680 Mb /dev/vx/rdsk/dg_db01/lv_data01          grid    asmadmin
  2:    327680 Mb /dev/vx/rdsk/dg_db01/lv_data02          grid    asmadmin
  3:    327680 Mb /dev/vx/rdsk/dg_db01/lv_data03          grid    asmadmin
  4:    112910 Mb /dev/vx/rdsk/dg_db01/lv_data04          grid    asmadmin
  5:      1024 Mb /dev/vx/rdsk/dg_db01/lv_vote1            grid    asmadmin
  6:      1024 Mb /dev/vx/rdsk/dg_db01/lv_vote2            grid    asmadmin
  7:      1024 Mb /dev/vx/rdsk/dg_db01/lv_vote3            grid    asmadmin
--------------------------------------------------------------------------------
ORACLE_SID ORACLE_HOME                                                         
================================================================================
    +ASM1 /oracle/product/11.2.0.4/grid_1                                     
grid@HAZZ-NRMS-RESDB01:/home/grid>

4. 至此,我怀疑是asm_diskstring设置的不够准确,将其更改为
SQL> show parameter asm_diskstring
NAME                                TYPE                              VALUE
------------------------------------ --------------------------------- ------------------------------
asm_diskstring                      string                            /dev/vx/rdsk/dg_db01/lv_*

但是问题依旧没有解决,

5. 检查集群安装环境,也没有发现问题
$ ./runcluvfy.sh stage -pre crsinst -n node1,node2 -verbose
$ ./runcluvfy.sh comp ssa -n all -verbose

6. 操作系统日志,没有发现错误

IBM: /bin/errpt -a > messages.out

      至此,可以确认,根据oracle的安装文档,目前的磁盘权限完全符合安装条件,在GI的图形化安装过程,也是可以看见ASM disk的,但是在root.sh执行过程中,就是无法通过。

      后通过Metalink查询到下面文章
ASM Is Not Detecting Raw Devices Or Regular Raw Devices On AIX (Doc ID 1174604.1)

      根据文档描述:
EMC存储,使用多路径,可能会遇到这个问题,而我的存储确实使用的EMC和多路径。

好吧,按照这个文档的Solution,测试一下

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