I believe AUTORESTARTiX does expect a volume set with a specific name.
Something like DUMPDISK_SET (?), but you can also stick other stuff on the
volume set.  I've found it is just easier to keep only the Autorestart
related software and dump areas on that drive.  If the machine has lots of
real memory, you will pretty much consume a 9GB drive just for a couple of
dump areas.