Re: (yet another) problem with zcx container

2020-08-26 Thread Timothy Sipples
Gord Tomlin wrote: >AFAICT the sole reason for the (paid) hardware feature is to provide >entitlement. >My guess as to why they require this feature is that you can run a lot >of FOSS products in zCX that offer similar function to IBM products. >Unfettered free use of zCX could be very costly to IB

Re: (yet another) problem with zcx container

2020-08-26 Thread Mauri Kanter
Thank you all for the answers ... They make a lot of sense ... -- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN

Re: (yet another) problem with zcx container

2020-08-26 Thread R.S.
No, this FC is kind of license. There is no hardware behind and definitely no change in integrated circuits like CPU. And it would be wise to enable such "deep DAT" for z/VM world as well. But there is no such feature. BTW: there are several FC features which are enablements of some software/m

Re: (yet another) problem with zcx container

2020-08-26 Thread Gord Tomlin
On 2020-08-26 14:37, Mauri Kanter wrote: I do not know why zCX needs FC-0104 ? Does FC-0104 changes something hardware-wise? AFAICT the sole reason for the (paid) hardware feature is to provide entitlement. My guess as to why they require this feature is that you can run a lot of FOSS pro

Re: (yet another) problem with zcx container

2020-08-26 Thread Mike Schwab
Well, you can get a 90 day trial without it, so the software must be checking for license and not using an actual hardware feature. https://ibmsystemsmag.com/IBM-Z/07/2020/z-os-container-extensions-trial On Wed, Aug 26, 2020 at 1:37 PM Mauri Kanter wrote: > > I guess the same than you and for th

Re: (yet another) problem with zcx container

2020-08-26 Thread Mauri Kanter
I guess the same than you and for the same reasons, but I have no proof of it ... The only thing why I doubt about it is that I do not know why zCX needs FC-0104 ? Does FC-0104 changes something hardware-wise? > >My guess is NO. >Reason: the same as with z/VM. Multi-level z/VM causes DAT to be

Re: (yet another) problem with zcx container

2020-08-26 Thread R.S.
IMHO the key to running system efficiently is to assure enough physical memory. Enough mean paging rate close to zero during normal operation. Paging is still good, but only clean out inactive pages (looong time). However DAT is in use even with no paging - just to translate virtual storage to

Re: (yet another) problem with zcx container

2020-08-26 Thread R.S.
W dniu 26.08.2020 o 18:15, Mauri Kanter pisze: Hi Mike: Thanks for the answer My question tried to clarify whether (or not) when a zCX Linux image uses DAT and z/OS is running under z/VM, if it can be a TLB-hit or it always be a TLB-miss because the so many levels of SIE-virtualization My

Re: (yet another) problem with zcx container

2020-08-26 Thread Mauri Kanter
Hi Mike: Thanks for the answer My question tried to clarify whether (or not) when a zCX Linux image uses DAT and z/OS is running under z/VM, if it can be a TLB-hit or it always be a TLB-miss because the so many levels of SIE-virtualization Mauri. -

Re: (yet another) problem with zcx container

2020-08-26 Thread Mike Schwab
The key to running MVS efficiently under VM was to specify a small region for MVS within VM. This would result with all the VM pages for MVS being in and MVS would page in and out. A large region for MVS would result in MVS and VM both paging in and out, working against each other. So look at Li

Re: (yet another) problem with zcx container

2020-08-26 Thread Mauri Kanter
Hi: BTW, speaking of running zCX under z/OS under z/VM ... Does anyone know whether (or not) the DAT translation is kept in the TLBs (CAM memory)? I don't know why, but I think there was a limit on the levels of hardware-assisted DAT translation ... I want to know whether running zCX on a z/O

Re: (yet another) problem with zcx container

2020-08-17 Thread Sean Gleann
I hear what you say, Brian - perhaps I should be a little less trusting. Nevertheless, the book goes on to cover installation of 'Cadvisor' and 'Prometheus', too, both of which are required for grafana to do its job. (and I'm having similar difficulty with Cadvisor, too.) Regards Sean On Fri, 14

Re: (yet another) problem with zcx container

2020-08-14 Thread David Crayford
I doubt it would be in production if it wasn't ready :) On 2020-08-14 4:32 PM, Brian Westerman wrote: I hate to say this but I can't help myself, but what makes you think they actually got it to work? :) But seriously, the redbooks are written sometimes before the final processes are set in p

Re: (yet another) problem with zcx container

2020-08-14 Thread Brian Westerman
I hate to say this but I can't help myself, but what makes you think they actually got it to work? :) But seriously, the redbooks are written sometimes before the final processes are set in place, so sometimes they tell you what "should be" instead of what "is be". From what you are saying, y