Hi All,

In a discussion with our Oracle group they claim that there is no support for 
Oracle in virtual systems and that they therefore will not support on virtual 
systems too. So when a (performance) problem is found they first advise to 
migrate to a dedicated server, and increase resources, before they attempt to 
solve the problem. This is not (only) true for z but also for other virtual 
systems as well, we discovered this because of the advice to migrate off of 
cloud systems. So basically any 'cloud' service is not advised to run Oracle.

Even more so, Oracle 'must' be installed with HA , the server 'must' have 4G to 
install in the first place and even more to run the database. Obviously plenty 
of caching must be available on all levels (FS cache, SGA/PGA, shared segments 
etc) to 'improve' performance. Needless to say that this makes server 'virtual 
unfriendly' to say the least, impossible to run virtualized would be a better 

Can anyone confirm this statement? Is it Oracle or is it the interpretation or 
our Oracle group? Is there a formal statement from Oracle itself?

(And Yes, we do run Oracle systems. And we do measure the best performance in 
systems that are as small as possible, ie don't run according to Oracle 
recommendations. So from our point of view the statement is not true but that 
doesn't help if there is no support on whatever level.)

Met vriendelijke groet/With kind regards/Mit freundlichen Grüßen,
Berry van Sleeuwen
Flight Forum 3000 5657 EW Eindhoven
* +31 (0)6 22564276
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