Search notes:

$ORACLE_HOME/dbs

`init$orapwORACLE_SID`	The initialization file (init parameters)
`orapw$ORACLE_SID`	The password file
`lk$ORACLE_SID`
`hk$ORACLE_SID`
`spfile$ORACLE_SID.ora`
`spfile+ASM.ora`	The SPFILE for an ASM instance

See also