Jack_Crouch
Well Known Member
We are on XE now, but I am studying up on the idea of setting up a 9.0 environment. It would be 8.98.3.1, Deployment VM Windows2008x64SP2 SSE, Enterprise/Data System i V5R4. WAS ND 70 on System i.
When talking to people about using OAS or WAS on intel, it seems "assumed" I would have at least 2 intel servers "for redundancy". I am not sure if they are saying that for hardware redundancy or software redundancy reasons.
Since I am thinking of putting WAS on one System i, I have this question:
I will install the ND version of WAS (because I can - that is what is in Oracle eDelivery). I wonder if I need to create multiple application servers (vertical cluster I guess) underneath that install or not? We will have 600 concurrent users. I am not clustering for hardware redundancy (since it is all on one System i). But I wonder if in the WAS world, if maybe it is not uncommon for an Application Server instance to “hang up” and require recycling. If that is true then I guess you might want multiple Application Servers just to avoid bringing the entire company down during a recycle?
Or maybe you want multiple Application Servers because it keeps the number of Java threads down and the "garbage collector" has an easier time?
When talking to people about using OAS or WAS on intel, it seems "assumed" I would have at least 2 intel servers "for redundancy". I am not sure if they are saying that for hardware redundancy or software redundancy reasons.
Since I am thinking of putting WAS on one System i, I have this question:
I will install the ND version of WAS (because I can - that is what is in Oracle eDelivery). I wonder if I need to create multiple application servers (vertical cluster I guess) underneath that install or not? We will have 600 concurrent users. I am not clustering for hardware redundancy (since it is all on one System i). But I wonder if in the WAS world, if maybe it is not uncommon for an Application Server instance to “hang up” and require recycling. If that is true then I guess you might want multiple Application Servers just to avoid bringing the entire company down during a recycle?
Or maybe you want multiple Application Servers because it keeps the number of Java threads down and the "garbage collector" has an easier time?