Oracle 11g RAC Two node root.sh execution error Failure example

Log only once for the Oracle 11g RAC installation process. This article is from: http://koumm.blog.51cto.com/
1. Using the RHEL6.5 multipath Multi-path software Installation The Udev configuration of the ASM shared disk was unsuccessful, because the time relationship did not have too much analysis and attempt.

OEL6. X IBM v3500 Storage Multi-path configuration
http://koumm.blog.51cto.com/703525/1439760

2. The RHEL6.5 multipath multipath Software Installation uses Asmlib mode to configure the ASM shared disk successfully, but the second node executes root.sh the following error prompt, as shown in resolution 3.

Disk Group CRS creation failed with the following message:
Ora-15018:diskgroup cannot 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 under:

# 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 performs a purge configuration before executing root.sh:
#/u01/app/11.2.0/grid/crs/install/roothas.pl-delete-force-verbose
#/u01/app/11.2.0/grid/root.sh

This article is from the "Koumm Linux Technology blog" blog, be sure to keep this source http://koumm.blog.51cto.com/703525/1728431

Oracle 11g RAC Two node root.sh execution error Failure example