Phil Tully wrote:
Jan,That 'FAQ' is interesting and mostly contains information that continues to be true today. I would be interested in what you don't agree with. But back to your original question. * Linux in an LPAR vs Linux running under VM: * Linux in an LPAR can scale to the number of LPARs available on your model CPU. (Up to 60 on a z9 EC) Under z/VM the number of linux instances is limited by the resources they need and the resources you have.
Jan Some questions for you to answer: How are you going to address applying Linux updates to your Linux systems? If you have three production systems, would you just apply updates and hope they work? Or would you prefer to have a clone of each to test the changes on? Will you (might you) have in-house code? Where will that be tested, on your production server, or on a development system? Do you have a QA role between developers (and OS maintenance) to do integration testing? What are they going to use, the production system or their own test system? Ask the same questions about other sources of software, Oracle and/or IBM/anyone else. How many virtual machines _must_ you have for Linux, and how many would you like? If you don't have enough LPARs, your question is answered. What about when you change your mind and want more, perhaps to test the next release of your distro, to compare distros, to evaluate some new product, to produce some Proof of Concept? What is important to you that I've not thought of? btw, someone round here became famous a few years ago by running some thousands of Linux guests under VM. -- Cheers John -- spambait [EMAIL PROTECTED] [EMAIL PROTECTED] Please do not reply off-list ---------------------------------------------------------------------- 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
