RE: Help with z/VM 5.3 Evaluation Edition

"Dave" <[email protected]> Sat, 20 Nov 2010 09:49:01 -0000
Newsgroups gmane.comp.emulators.hercules390.vm
Message-ID <1BB809D2328045B0B97DDE590AAC73D1@EMACHINE>
To answer my own question, you have DIRMAINT so use that. The manuals are
here :-

http://www-03.ibm.com/systems/z/os/zos/bkserv/zvmpdf/

DIRM ADD 

allows you to add users. Not sure whast needed for a modern zOS, lots of
memory I guess....

Dave.

> -----Original Message-----
> From: [email protected] 
> [mailto:[email protected]] On Behalf Of "Fish" (David B. Trout)
> Sent: 20 November 2010 08:06
> To: [email protected]
> Subject: [H390-VM] Help with z/VM 5.3 Evaluation Edition
> 
> 
> I've been out of the game too long and sort of lost and need help.
> 
> I'm got the z/VM 5.3 Evaluation Edition installed and it works fine.
> 
> I managed to copy the ramdisk to a real dasd so it's no 
> longer 0881 but rather 0801, so I guess I can do whatever I 
> want/need to and it'll "stick".
> 
> What I need to do is setup a new userid for ... um, a "more 
> modern MVS". ;-)
> 
> Once I've got that setup I then need to begin researching a 
> Herc issue related to varying paths/chpids/subchannels online/offline.
> 
> The bug in Herc involves what we THINK is a missing CRW 
> Machine Check (Channel Report Word) that's generated whenever 
> you attach a device to the system that didn't exist before. 
> That is, you power-on Herc without the device and then once 
> the guest is IPL'ed and up and running, you then "attach" the 
> device to Herc and it generates a CRW Machine Check for the 
> guest so it can know the device is now available. That's 
> where the bug is in Herc that I need to find.
> 
> It mostly works fine under almost all circumstances except a 
> very specific one and that's what I need to research.
> 
> I'm hoping I can use z/VM 5.3 to do the same thing (vary a 
> path/chpid/subchannel (one or the other or all 3) online to 
> the "MVS" guest) and using z/VM 5.3 look at what type(s) of 
> CRW Machine Checks IT generates. That will I hope give me the 
> need information to learn what Hercules also needs to do (but isn't).
> 
> But my inexperience with modern VM's is getting in the way.  :(
> 
> (The last VM I worked on 20 years ago was VM/SP 5, and that 
> was so long ago I've since forgotten most of what I knew)
> 
> Can someone "kick-start" me in the right direction and maybe 
> give me a few pointers where to start my (re-)learning curve?  :)
> 
> Thanks! :)
> 
> -- 
> "Fish" (David B. Trout) 
>  [email protected]
> 
> 
> 
> 
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