Re: Where does AppleRaid kext reside in Mass Storage Driver Stack
Re: Where does AppleRaid kext reside in Mass Storage Driver Stack
- Subject: Re: Where does AppleRaid kext reside in Mass Storage Driver Stack
- From: Dean Reece <email@hidden>
- Date: Sat, 18 Dec 2004 10:17:09 -0800
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.
Hope this helps,
- Dean
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