site_archiver@lists.apple.com Delivered-To: darwin-dev@lists.apple.com To answer my own question, it appears to be currently impossible to use the device identifiers rather than the device itself to create a RAID. If one has two identical SATA drives (each partitioned with a single extended HFS partition) and boots off of a third drive or a boot CD, the following command will fail under MacOS X 10.3.5... diskutil createRAID mirror PantherMirror disk0s3 disk1s3 ...where s3 is the slice containing the extended HFS partition on each SATA drive. Diskutil fails with a message that "Error -9983 encountered updating or creating raid on disk". However the device form of this command succeeds... diskutil createRAID mirror PantherMirror disk0 disk1 I would note that the failure of the first form of the command using the device identifiers with the slice number fails in a way that mangles the partition tables on those two drives so you have to repartition them after the error in diskutil. The reason I mention all of this is that this bug rules out the possibility of having a set of mirrored 2-partition drives under the current MacOS X releases. Jack ps At the very least the manpage for diskutil should be updated to reflect this situation since it currently leads the user to believe that one can use the disk identifier form (disk0s3) with diskutil anywhere it takes a device name (disk0). _______________________________________________ Do not post admin requests to the list. They will be ignored. Darwin-dev mailing list (Darwin-dev@lists.apple.com) Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/darwin-dev/site_archiver%40lists.appl... This email sent to site_archiver@lists.apple.com