I also couldn't find any info on why would I want to use ASMLib instead of standard Linux raw-devices. If anyone has some facts and/or documents, please share with us. So far I only found Jared's comment in "Adventures in ASM" article: "Some preliminary testing (admittedly, on a single machine so far) indicates that the of ASMLib I/O may cost a significant I/O penalty. You will need to test this on your own system to determine if this is so for you." 2006/3/7, LiShan Cheng <exriscer@xxxxxxxxx>: > My doubt is really, is ASMLib I/O API better than Linux I/O API? :-) -- Best regards, Alex Gorbachev -- //www.freelists.org/webpage/oracle-l