site_archiver@lists.apple.com Delivered-To: darwin-kernel@lists.apple.com Hope this helps, - Dean _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-kernel mailing list (Darwin-kernel@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-kernel/site_archiver%40lists.a... On Dec 18, 2004, at 3:18 AM, Mekhala wrote: Can anyone guide us, in which layer of the Mass Storage Driver Stack, AppleRaid module used by DiskUtiliy resides for performing RAID operations. AppleRAID lives at the IOMedia level of IOKit - above the device drivers, but just below the BSD layer. It fits into the system the same way a partition scheme does (you can think of a RAID volume as a partition that spans multiple disks). If you have a RAID volume set up and mounted, you can run "ioreg -l" and see how the objects stack up in the IORegistry. We also want to know the hierarchy of classes and driver families involved in the AppleRAID. AppleRAID is public source in Darwin, so you can check it out and examine it. It is important to note that the AppleRAID classes are not suitable for subclassing; they do not provide any API for developers to use. This email sent to site_archiver@lists.apple.com