Unfortuntaly I'm getting the following message just before starting the disk wipe (option 4 in the boot menu): "Feb 04 14:22:52 [tlvvocnp01-01:raid.autoPart.disabled:notice]: Auto-partitioning is disabled on this system: the system needs a minimum of 8 internal hard disks".
I've use the disk remove_ownership command on both nodes before entering wipe configd and verified disks had no ownership.
I've tried it using the following boot images: 831_q_image, 83_q_image
Assuming this is an empty system and there is no data to be preserved...
I dont think you need to assign the disk for this proceedure. At loader check setenv bootarg.init.boot_clustered true. You should then go to special boot, install new software, to put 8.3.x on flash, then reboot (on both nodes). Then boot back to maintenance mode and run option4 with all the disk unassigned. System should build all the ADP partitions based on how many disk are available and install new root accordingly.