Oops I mixed up this thread. Actually should be asking concerning instance plan on a server. Yeah those are suppose to run on the same machine. Memory wise should be sufficient for 3 instances in one machine. Those instances are OLTP and not so high load. So would it be wise to group 2 or 3 instances into only 1? This is will easier to manage but when and instance is down all the 3 schema and users will be affected. So what do you think?

Originally posted by OracleDoc
first of all...

1.Do all these instances run on one server? If not, do you have enough room and resources to fit all the extra data onto the one server.
2.The type of instances you have.. are they all realtivly the same? IE.. OLTP, warehouse, ect, ect..

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