On 7/10/07, Brad Hinson <[EMAIL PROTECTED]> wrote:
Using mod-9 instead of mod-3 gives you a performance hit, especially if they're not spread across multiple I/O channels. Check out the latter sections of this PDF for more info:
I doubt that's the issue here. He's talking about 130 times -9 already so I am not sure how much more you want to spread data. The idea of going to 400 model 3's does not sound attractive to me. Neither does the idea of adding more subchannels to the data through PAV. A useful approach to move forward with this would be to look at the z/VM performance data to understand what is holding the server back. Depending on that, you'd have to look inside Linux for further detail. If you collect some monitor data I can have a look at it. Rob -- Rob van der Heij Velocity Software, Inc http://velocitysoftware.com/ ---------------------------------------------------------------------- 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
