- How process can read the spfile from ASM disks, if they are not mounted yet
- How process knows where to get spfile if there is no init.ora file in $ORACLE_HOME/dbs with spfile=[path to spfile] parameter
- What about asm_diskstring parameter?
http://aychin.wordpress.com/2011/01/22/oracle-11gr2-asm-spfile-eng/