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To: Dan3 who wrote (230915)	4/22/2007 9:20:03 PM
From: pgerassi	Read Replies (1) \| Respond to of 275872

Dear Dan3: Its not the OS licenses that cost, its the RDBMS and application licenses that cost. Besides I wouldn't use Microsoft for the base OS of any server. Linux or Unix as the base OS. Windows runs as a client VM only. Oracle or DB2 are the heavy licenses for cost. They are both charged either by user or processor count. Well if the same user runs on 4 different instances of Oracle, he is charged once on the license, if its on the same physical server. On four different physical servers, that user takes four user licenses. So if you have 50 applications that run Oracle and 100 employees with the average employee being on 5 applications, putting each application on its own 1P server costs you 50 processor Oracle licenses and 500 Oracle user licenses. On 3 4P servers, you can get away with 12 processor Oracle licenses and 200 user licenses. At $5000 per processor and $500 a user, the 1P servers costs about $500K and the 4P servers cost about $160K. You can whittle the users down on the virtual servers by running the primary Oracle on a single physical server with a hot spare (only activated when the primary goes down)(typical three tier setup). Then you are down to just 4 processor licenses and 100 user licenses for $70K. At $430K per year in license costs for Oracle alone, you can afford 3 top of the line 4P servers and still cost less than 50 glorified desktop PCs. That works out to an additional $8,600 annual software fee per 1P server (PC). How much did you save by buying 50 PCs rather than 3 4P servers? $20K? $50K? Oracle alone chewed that up in a few weeks. You see why server consolidation saves money fast and usually has very quick payback times. Pete