Almost a month away… My bad!
Here I go again, with a quick tip, that a passed today. Our kernel was ‘changed’ without advise and this began to happen:
ORA-15186: ASMLIB error function = [asm_init], error = , mesg = [Driver not installed] ERROR: error ORA-15186 caught in ASM I/O path
The solution was is basically update the asmlibs, that is based on kernel version. For RHEL, the solution is well decribed here:
Just to remember: After the kernel change, a relink of your Oracle Home is higly recommended.
Have a nice day!