Tony Mountifield wrote: > Ok, I've now checked up and it was the ML110 where I discovered that behaviour. > The DL360 I worked with was completely different, using a driver called cciss. > CCISS is for smartarray cards, which are typically LSI Logic cards that HP has reprogrammed. these are 'true' raid cards, usually with battery backup writeback caches (although the battery module is an option), large onboard caches and their own embedded processor.