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  Oracle 11g RAC root.sh execution error second node failure example
     
  Add Date : 2018-11-21      
         
         
         
  Oracle 11g rac only recorded once the installation process

1. Using RHEL6.5 multipath multipath software is installed using udev configure ASM shared disk is unsuccessful, then because of the time and try not too much analysis.
2. Using RHEL6.5 multipath multipath software is installed using ASMLIB configure ASM disk shared success, but at the second node execute root.sh reported the following error message, see 3 solution.

Disk Group CRS creation failed with the following message:
ORA-15018: diskgroup can not be created
ORA-15072: command requires at least 1 regular failure groups, discovered only 0
ORA-15080: synchronous I / O operation to a disk failed

Configuration of ASM ... failed
see asmca logs at / u01 / app / grid / cfgtoollogs / asmca for details
Did not succssfully configure and start ASM at /u01/app/11.2.0/grid/crs/install/crsconfig_lib.pm line 6912.
/u01/app/11.2.0/grid/perl/bin/perl -I / u01 / app / 11.2.0 / grid / perl / lib - I / u01 / app / 11.2.0 / grid / crs / install / u01 /app/11.2.0/grid/crs/install/rootcrs.pl execution failed

3. The solution is as follows

node1, node2 follows:

# Vi / etc / sysconfig / oracleasm

ORACLEASM_ENABLED = true
ORACLEASM_UID = grid
ORACLEASM_GID = asmdba
ORACLEASM_SCANBOOT = true
ORACLEASM_SCANORDER = "dm"
ORACLEASM_SCANEXCLUDE = "sd"
ORACLEASM_USE_LOGICAL_BLOCK_SIZE = false

# /etc/init.d/oracleasm Restart


The second node to perform cleanup configuration, you can then execute root.sh:
# /u01/app/11.2.0/grid/crs/install/roothas.pl -delete -force -verbose
# /u01/app/11.2.0/grid/root.sh
     
         
         
         
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