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I have some questions:
1-Is that a production or testing server?. 2-If it is a production why you developed it on a laptop?. 3-How many memeory you assigned to each node and to the observer?.
Hello;1 person found this helpful
If you don't have the resources and have no option to increase them then you have to drop something. I would shutdown the "observer".
The other option is to cut the "observer" resources. It needs very little, 2GB is a lot for that.
Also, what OS are you running on the laptop and within the VM's ?
You can run Oracle 11 on VMware with as little as 1GB of RAM.
The observer can be completely stripped down, it does very little work.
I can run 3 Oracle 220.127.116.11 databases on Red Hat 5 in vmware using Windows 7 as a host. I use 1 CPU ( core ) each for the VM's and 1.2 GB memory. No issues. Cut your memory and you won't waste CPU on swap you don't need.
Edited by: mseberg on Mar 27, 2013 7:37 AM
1) It will be used for testing purpose to know Dataguard technologies in depth.
2) Not Applicable.
3)I have assigned 2 gb to each node and automatic memory management is enabled(memory_target = 1Gb each db)
Hello ,1 person found this helpful
Since this is for education purpose i would recommend you to do the following:
Check the memory on windows:
1-Check the available memory left on the latop and try to close any unseeded applications. This should save for you 2 gigas additional and say 2 giga for the OS. 2-If this didn't work then please reduce the database memory assigned for the SGA to 1.5 or 2 giga although oracle recommends that the memory to be 2 giga at least but since it is for education then lets try that. I think if you do this it would be ok however i still think 8 giga RAM would be enought to assign 2 giga memory for each database and run ok.I have installed oracle RAC on a laptop similar to that one before and everything was going ok.
Please user ALT+CTRL+DELETE to see where your OS memory is consumed on windows machine.
I have Oracle Enterprise Linux 5 installed in each node of VMWARE, i reduced the observer dedicated ram to 1 GB but nothing much improves, so still looking badly for all of your inputs and comments.Thanks everyone.
The problem is still continuing even after implementing all the ideas.
Freinds, I am still waiting for some tips/advices to overcome this problem. Your suggestions and ideas will be highly appreciated as always.
What comes to mind is the movie Jaws. The one from 1975. At one point they do a quick summary. I believe the line is something like:
"We're going to need a bigger boat"
You can try to disable the 3rd node (observer) & configure dataguard on two nodes. Because your primary objective is to understand the indepth technology of dataguard which can also be achieved by working on 2 node setup.