On Wednesday, 05/28/2008 at 12:37 EDT, Jae-hwa Park <[EMAIL PROTECTED]> wrote: > Thank you for your consideration, Tim. > > I need the way for collecting performance data of Linux at z/VM side. > And it'll be better if I could save the data from z/VM to mysql or > files on the other Linux server. > > Is it possible to read and get the files from CMS using cmsfs driver > at Linux? I think that it could be possible to save the perf. data > using this cmsfs, couldn't it?
Your customer does not have the money to buy a performance product, yet they have money to spend on your custom programming? (You're not doing this for free, right?) It's not about the mechanics of gathering infinite amounts of performance data - it's about knowing how to interpret it, whether for charge-back or performance management. And it's been discussed here (by Barton and Rob) that keeping all that raw data is expensive. It will consume a lot of dasd space unless you compress it. But what's the best way to compress it? Do you compress the raw data? Or do you render the raw data into conclusions and then compress the conclusions? Do you also have to write the software to manage the archive? So while you spend a few years writing all of this stuff to correctly analyze and file the data (evaluating changes that Linux *and* z/VM make with each release), your customer has no effective performance management tool. IMO, the following are not "free" in any way as they require a not insignificant investment in hardware, software, and/or specialized skills: - Security - Performance - High availability - Disaster preparedness And at the end of the day, whatever you invest in solutions will repay you later. Failure to purchase a performance management product pretty much guarantees (IMO) eventual failure of the system due to neglect. An exception is made if your customer hase an intuitive understanding how CP works and understands what all the queries, displays, and monitor data fields mean, what all the levers and knobs do, AND has the time to invest in reducing the data themselves. It is all just 1s and 0s, but the trick is getting them in the right order! :-) It is not just an expense, it's an investment in their own future and success. I was very pleased to run across a customer this week who wanted to enter a proof of concept with ALL the system management software they would need, not just vanilla z/VM. Alan Altmark z/VM Development IBM Endicott ---------------------------------------------------------------------- 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
