Rac is only available on standard edition with a special use licensing (which limits for instance the number of cpu's available in the cluster) Freek D'Hooge Uptime Oracle Database Administrator email: freek.dhooge@xxxxxxxxx tel +32(0)3 451 23 82 http://www.uptime.be disclaimer ________________________________________ From: oracle-l-bounce@xxxxxxxxxxxxx [mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Joerg Jost Sent: vrijdag 17 juli 2009 10:28 To: oracle-l-freelists Subject: Re: rac vs dataguard Hi list, Just on think to consider is the licence. RAC is in Oracle Standard Dataguard is in Enterprise Active Dataguard in 11g is an option only available to the Enterprise Edition This circumstance is a big factor for our Company because our customers whish to use the Dataguard feature, but especially on new Intel based Servers the difference to the Standard Edition is so huge. Often the RAC is the option choosen by the customers after comparing the to offers one with Standard and one with Dataguard. hth Jörg Jost -- //www.freelists.org/webpage/oracle-l