Re: Teradata eh?
Good question, not sure what their magic bullet is for DW. It is expensive gear, so apparently they have something working well unless these are all just capacity expansions at long time Teradata users. You would think that they would be facing competitive pressure from the big names all acquiring or creating their own DW appliances, e.g. IBM Netezza, Oracle Exadata (although I am not sure how you have a system which is simultaneously "engineered" for OLTP and OLAP), EMC's Greenplum appliance.