> I have a request for a linux server that will be hosting an oracle data base. > The requestor has requested 8G of main memory and 8G of swap (Our > normal server usually has 1.5G of swap - .5 on dasd and 1G on vdisk). > Does anyone have any thoughts about giving this person 8G of swap ?
First reaction: way, way too much unless they have usage data that shows it in use. If they're sizing based on deployments on other platforms, they need to look at it again; most times they want huge memory sizes because it was that way on another platform where I/O was extremely expensive and they needed lots of SGA space to cushion the I/O load. But, if they can show use, large swap may be needed to soak up an occasional spike for really large queries. > Are there any recommendations for an oracle server ? It's workload dependent. One-size-fits-all really can't work. Get them to actually measure what the server is doing, and then start with about half what they had on the previous platform and work up. It's really easy to change resource allocations, so adding more is a lot easier than trying to take it away once they've got it. ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390 ---------------------------------------------------------------------- For more information on Linux on System z, visit http://wiki.linuxvm.org/
