Yeup, the Xsan forum is the place for these questions.
Just to tie up a few items:-[Kevin Monahan] “Yes, you really need a metadata controller. It doesn’t need to be as fast as the Xserve RAID though”
The speed of the XServeRAID has nothing to do with the speed of the MDC. A G5 preferably a XServe is recomended. Xsan is also quite RAM hungry and I don’t know why but the Ram in a Xserve suits the job better. It will also depend on how many clients you intend to have.
You only need two ethernet connections if you want non-metadata traffic as well. The Xsan metadata needs a dedicated network to itself. So if you want to browse the internet, install a second card or use wifi. Because of the low data rate , you can probably get away with running the RAID admin on the metadata network. – I only look at mine on powerup and when something is wrong!
Peter
https://www.peterwiggins.com