The ONLY things different with the dual G5 Xserve versus the dual G5 Xserve
Cluster Node are:
- No optical drive in Cluster Node
- 1 externally accessible drive bay versus 3
- Mac OS X Server 10-client versus unlimited
- $1000 difference in price
This translates into a big difference in storage. The Apple Store says this
for the cluster [...]
Yes, it only has one drive bay of its own. But the other poster's
requirements only listed one 80GB internal drive.
As for your question, the Xserve Cluster Node has the same expansion
slots and options (e.g., Fibre Channel Card, etc.) as a normal Xserve,
even though they're not explicitly offered in the configurator; they all
can still be purcahsed. So you can still install, for example, a Fibre
Channel Card and access an Xserve RAID or other SAN. In fact, all of our
Apple media servers are Xserve Cluster Nodes for this reason.