The overhead of running zLinux on a second-level z/VM is horrendous (Any help on the way Bill?). I wouldn't recommend it.
If the second-level z/VM is just for testing z/VM it should be ok. Regards, Aaron Graves SVP Citi Architecture and Technology Engineering / Technology Infrastructure 201-601-7049 aaron.gra...@citi.com -----Original Message----- From: Linux on 390 Port [mailto:linux-...@vm.marist.edu] On Behalf Of Bill Bitner Sent: Monday, February 01, 2010 8:43 AM To: LINUX-390@vm.marist.edu Subject: Re: zLinux operating as a zVM guest host To echo Mark's and others' comments. This configuration is likely to have a lot of overhead with z/VM on top of z/VM on top of LPAR. Most customers I've worked with placed your three z/VM systems in different LPARs. Partitions can be capped similar to LIMITHARD with Relative Share setting. To avoid confusion, the changes with VM64721 for the SET SHARE command do not affect Limitsoft (and were not inteded to do so). However, VM64721 does affect Limithard, but only when turned on via SET SRM LIMITHARD CONSUMPTION command. (SET SRM LIMITHARD DEADLINE is the default) Bill Bitner - VM Performance Evaluation - IBM Endicott - 607-429-3286 ---------------------------------------------------------------------- For LINUX-390 subscribe / signoff / archive access instructions, send email to lists...@vm.marist.edu 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 lists...@vm.marist.edu with the message: INFO LINUX-390 or visit http://www.marist.edu/htbin/wlvindex?LINUX-390
