Can multiple Macs access the same firewire volume simultaneously?

I have a firewire drive and hub, and two Mac Minis. I would like to use this hardware to build an Oracle 10g Real Application Cluster (RAC). To do this, both Macs would have to be able to read/write blocks on the same volume on the firewire drive (Oracle prevents collisions). Newer Linux kernels have support for doing this. It seems that the Mac OS X Server 10.3.4 that I am using blocks at the volume level by node. It would seem to preclude my using this hardware unless I devote another machine to being an NFS server for the shared storage. I'm looking for possible kernel tricks to get this to work.
Jeremiah
Mac Mini   Mac OS X (10.3.4)  

According to Oracle's white paper on RAC:
The type of disk storage used can be network attached storage (NAS), storage area network (SAN), or SCSI disk.
It does go on to say:
Alternatively Oracle supports the use of raw devices and some cluster file systems such as Oracle Cluster File System (OCFS) which is available on Windows, Linux and Solaris
I suppose if Oracle is taking over the raw device, support might be possible, but OCFS is not available for Mac OS X.

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