You have picked some details that has not been needed in z/VM environments. Since you normally have one or perhaps two systems, where should you move it and why ?
Recently we switched some network hardware here and one router failed connections due to some bit's Wrongly set, making network gone for 70 seconds. VMware server went down, z/VM just notified with a message that we have a not responding network here and I will try the failover card. And later just notified, ahh you are back again, welcome. So not really sleeping :-) ________________________________________________ Tore Agblad zOpen, IT Services Volvo Group Headquarters Corporate Process & IT SE-405 08, Gothenburg Sweden E-mail: tore.agb...@volvo.com http://www.volvo.com/volvoit/global/en-gb/ -----Original Message----- From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Sergey Korzhevsky Sent: den 28 september 2015 8:25 To: LINUX-390@VM.MARIST.EDU Subject: Re: Documentation for Linux on z Systems and KVM - new Alan Altmark wrote: >> What is it about z that makes virtualization work better? >50 years of work on it? That is interesting answer. One thing came to my mind is the live guest relocation. As far as i could find, VMware introduced that feature (vMotion) in 2003, z/VM - in 2011. The same regarding network (GuestLAN/VSwitch). So, looks like z/VM slept all that years and was wake up by x86 world recently. WBR, Sergey Alan Altmark <alan_altm...@us.ibm.com> Sent by: Linux on 390 Port <LINUX-390@VM.MARIST.EDU> 24-09-15 20:04 Please respond to Linux on 390 Port To: LINUX-390@VM.MARIST.EDU cc: Subject: Re: Documentation for Linux on z Systems and KVM - new On Thursday, 09/24/2015 at 10:38 EDT, Rick Troth <r...@casita.net> wrote: > In the broader Linux market, z is alien; z/VM more-so. But now there's > zKVM. But "we" know the value of z/VM. Perhaps zKVM beats xKVM (does > it), but z/VM beats zKVM with one arm tied and one leg hamstrung. How > the [expletive deleted] are we supposed to communicate the strengths of > z/VM now that (some) customers have zKVM? > Sometimes it's not about how many or how fast, but whether you have enough and they are fast enough to make it financially worthwhile. (This is all about money, right?) For those who find z/VM too alien, but who want what z can bring to the table, zKVM is there. Dislike or fear of z/VM is no longer an inhibitor to those who want Linux on z using a hypervisor that they already know. Now, once they have what they want, it becomes the usual case of run-evaluate-run-evaluate-repeat. Nothing new here in that respect. If they find that there are things z/VM can do that zKVM cannot, then there are decisions to be made. Emotional and technical. Is what you give up from zKVM going to be worth what you get with z/VM? Conversely, that same is question might be asked by existing z/VM customers who are near that line between the two. If you manage your system via QUERY, INDICATE, and DIRECTXA, and the Linux people won't sit with you at lunch or slash your tires, then maybe, just maybe, zKVM should be on your radar. > What is it about z that makes virtualization work better? 50 years of work on it? > * zKVM obviously means "KVM for IBM z Systems" and is presumed not a > brand IBM blesses in any way. zKVM is the product "short name" IBM uses for KVM for IBM z Systems. Alan Altmark Senior Managing z/VM and Linux Consultant Lab Services System z Delivery Practice IBM Systems & Technology Group ibm.com/systems/services/labservices office: 607.429.3323 mobile; 607.321.7556 alan_altm...@us.ibm.com IBM Endicott ---------------------------------------------------------------------- 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 more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- 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 more information on Linux on System z, visit http://wiki.linuxvm.org/ ---------------------------------------------------------------------- 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 more information on Linux on System z, visit http://wiki.linuxvm.org/
