I think the real problem here is that when CP is thrashing about for whatever reason, it can be very hard to get control of a VM prompt to manually fix things. Perhaps if CP could determine that some resource is being sorely abused, it could degrade the offending machine at least to the point that a favored user can do a bit of problem determination and possibly force the offender(s).
Our operator (PROPST) machine has option quickdsp and share rel 10000. I hope it never goes astray, but I also have a bit of hope that I will be able to re-connect to it if some other virtual machine buggers the system so I can straighten things out. Bob. -----Original Message----- From: The IBM z/VM Operating System [mailto:ib...@listserv.uark.edu] On Behalf Of Schuh, Richard Sent: Friday, September 18, 2009 12:11 PM To: IBMVM@LISTSERV.UARK.EDU Subject: Re: VM lockup due to storage typo While you are at it, make it self-healing, including the updating of the source code. Or at least include a Medical Tricorder with each system.:-) > We recognize that CP must be more forgiving and we are working to that > end, examining a variety of solutions that include inertial dampening, > tritanium plating, Kevlar(R), stacks of phone books, as well as taking > the gun away from you and beating you over the head with it (aka "the > retaliatory baseball bat subroutine"). You may need dedicated DUMP packs in order to be able to do this. CP may have outgrown the size of the dump space and cannot allocate a larger space as a result of the problem. > The bottom line is that none of us want the system to go out to lunch. > That doesn't serve anyone's purposes. If it happens, get a restart > dump and let us know. Sometimes it's *not* your fault. Really! :-) > > Alan Altmark > z/VM Development > IBM Endicott > = This electronic transmission and any documents accompanying this electronic transmission contain confidential information belonging to the sender. This information may be legally privileged. The information is intended only for the use of the individual or entity named above. If you are not the intended recipient, you are hereby notified that any disclosure, copying, distribution, or the taking of any action in reliance on or regarding the contents of this electronically transmitted information is strictly prohibited.
