在安装grid的时候遇到的错误INS-2080
INFO: Read: ORA-15018: diskgroup cannot be created
INFO: Read: ORA-15038: disk '' size mismatch with diskgroup [4096] [] []
最后修改了vim /etc/sysconfig/oracleasm
ORACLEASM_USE_LOGICAL_BLOCK_SIZE=true 参数
重启服务生效 service oracleasm restart
原文：http://blog.51cto.com/junhai/2062320