Remove label from solaris disk

As you know, any disk used in Solaris has to have a label (if there isn't any, you can just use "format").

My problem is I want to unlabel a disk for testing purposes. Is there any command that does this?

Thanks!

Answering myself here:

dd if=/dev/zero of=$HARDDRIVE count=16

This overwrites the label, and a "format label" is required in order for the drive to be usable again.

I always used a linux life CD to remove all partitions and repartition the disk. That will remove all labels. That, ofcourse is only an option if the disk content is disposable... ;-)

Looks like you found your solution, but dd is a sledgehammer hitting a nail. Take a look at the man page for fmthard, I think it's a little more elegant, and supported.