Hi all, I'm new to MD RAID. When I read the book "Understanding the Linux Kernel", I know that there are several layers between Filesystems (e.g. ext2) and block device files (e.g. /dev/sda1). These layers are: Filesystem <==> Generic Block Layer <==> I/O Scheduler Layer <==> Block Device Driver <==> Block Device. May I know where exactly is the MD RAID Device Layer(e.g. /dev/md0)? Thanks a lot! Linuxmania -- This message was sent on behalf of linuxmania.lizhi@xxxxxxxxx at openSubscriber.com http://www.opensubscriber.com/messages/linux-raid@xxxxxxxxxxxxxxx/topic.html - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html