All of that depends.... It seemed to be happy with 768M to install Oracle 10g. I have been able to trim it down to 400M running (OEM, a java based thingie, takes the greatest part of it).
It seems to run fine, for a test machine. The applications people seem to be fairly happy with their response time. I'm not actively paging in VM nor actively swapping in Linux. But we have a great dasd subsystem. A ficon attached DS6800. I know that I'm trading more I/Os for a reduction in the real memory foot print. Compared to the mainframe, an Intel based system, can't do I/Os. And since on that platform, memory is cheap, they want lots of memory for caching. IMHO, that is not a good trade off in the "shared" mainframe world, unless you are really pumping I/Os thru. And, you are right. Most numbers in the zSeries installation guide, are directly from the dedicated Intel server side of the house. You are on a shared system with shared resources. I always start with lessor resources and increase if necessary. It is a lot easier to give someone more MBs of real storage, then to take it away, later. A lot of cache, can hide a poorly designed query. Now, if your dasd is escon attached, you may need more memory if it can't handle the I/O load. But I would make them prove it first. Tom Duerbusch THD Consulting >>> [EMAIL PROTECTED] 1/2/2007 2:34 PM >>> Hi A group is wanting to install Oracle 10g and is asking for a server with 3Gb Memory and swap at 1.5x the memory This sounds like an Intel install but is out of the Linux for zSeries install guide. What have you seen as to what is really needed to install and run oracle? Do I really need a server that large and with that much swap space? TIA William 'Doug' Carroll Mainframe Systems Eng Sr I Global Technology Infrastructure ECS Mainframe Operating System Services Explore IT, build IT, exploit IT - Creating excellence through teamwork. Office: (614) 213-4954 Pager: [EMAIL PROTECTED] Cell: (614) 209-0649 Fax: (614) 244-9897 http://www.jpmchase.com ----------------------------------------- This transmission may contain information that is privileged, confidential, legally privileged, and/or exempt from disclosure under applicable law. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or use of the information contained herein (including any reliance thereon) is STRICTLY PROHIBITED. Although this transmission and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by JPMorgan Chase & Co., its subsidiaries and affiliates, as applicable, for any loss or damage arising in any way from its use. If you received this transmission in error, please immediately contact the sender and destroy the material in its entirety, whether in electronic or hard copy format. Thank you. ---------------------------------------------------------------------- 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 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
