This presentation has had a very poor score in selections for conferences (no OOW, no DOAG, no UKOUG) but people liked it very much at Paris Oracle Meetup. The Database on ACFS is mainstream now, thanks to the new ODA releases. Having some knowledge about why and how you should run (not) Databases on ACFS is definitely worth a read.
Comments are, as always, very appreciated 
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Ludo