I'm running 160+ Oracle virtual servers on 3 IFLs. None run virtual MP. All are UP. Everyone is happy. I am not saying that this is one size fits all - most of the DBs are measured in Gb not Tb, so lotsa medium sized servers. Just tremendous horizontal growth. What are the users doing? All sorts of thing, WAS requests, portal requests. When an Oracle VM does an I/O, the next machine in queue gets some cycles, all machines get their work done, everyone is happy see above. Lot's of headroom left on the IFLs for Oracle - not like the CRJ by Bobmbardier where I bang my head at least twice when a passenger - which I am frequently. See 747 comments. Saying virtual MPs works well for database - gee, I dunno, I don't see it. It depends I guess on the sort of requests coming to the server, like if some user app does a sequential read, or something. Isn't an Oracle DB server there to serve up data? Cached or disk data? Domino? Different story - it has many of its own indexing tasks - let 'em run in a separate virtual CPU and in the other virtual CPU read some mail for a user or something. David Kreuter
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