We've had VM for about 25 years I think (longer than I've been here). We've never had a test LPAR - always done VM under VM for testing new VM. With the Linux workload now, we do have one VM system that runs only test/dev linuxes - so that's the first box to get a new release of VM, but it's not VM testing by any means (and those owners of the linuxes will scream loudly if it goes down) and we still start VM under VM on that box.
But you could certainly carve another LPAR on your 1st z9 - it wouldn't be as cheap (need real memory, perhaps console connections) as VM under VM, but if that's what you need, go for it. Marcy Cortes "This message may contain confidential and/or privileged information. If you are not the addressee or authorized to receive this for the addressee, you must not use, copy, disclose, or take any action based on this message or any information herein. If you have received this message in error, please advise the sender immediately by reply e-mail and delete this message. Thank you for your cooperation." -----Original Message----- From: Linux on 390 Port [mailto:[EMAIL PROTECTED] On Behalf Of Moeur Tim C Sent: Friday, January 19, 2007 8:03 AM To: LINUX-390@VM.MARIST.EDU Subject: [LINUX-390] VM test platforms Good morning List, I have a question of general test and production architecture. We currently have some production zLinux guests running under z/VM 5.1. z/VM is installed as an LPAR on our single Z9 server. We had, until recently, a second Z9 on which I was running a test VM which I could use to apply and verify maintenance and program fixes. After those fixes have been deemed OK, we'd move them to the production VM system (VMPROD). Now, The VMTEST Z9 has gone away and now I'm faced with a choice of creating a second LPAR for VMTEST, or to run VMTEST as a guest under VMPROD. So the question is - is running my VMTEST as a guest of VMPROD good practice? Are there exposures to flawed maintenance or program fixes that wouldn't surface when the platform is running as a VM Guest? How are those of you with current production and test VM systems doing this? Tim [EMAIL PROTECTED] ---------------------------------------------------------------------- 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
