Apparently 10.2.0.3 has an issues with veritas or solstice disk suite.
I just finished setting up a new server with Solaris 9 and 10.2.0.3 on a database install got inappropriate ioctl for device. after confirmation from my sysadmins that the problem was not the disk or the OS. I found Note:405825.1 which describes the exact problem that i had and the fix was applying Patch 5752399. This is published as Bug 5747918. The database creation was successful after application of the patch