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Assume I have a magic "SAN" that doesn't incur an I/O locality performance penalty. Can I run volumes with replication factor = 1 ?

Question asked by chris_almond on Mar 28, 2012
Latest reply on Mar 28, 2012 by Ted Dunning
This is a roundabout way of asking the "which storage is more expensive for Hadoop - SAN or distributed DAS".  If you can dial the FS replication factor down to 1 when using a SAN, then the storage cost equation favors SAN over default 3x replication factor on distributed DAS.