DNS question tangents to OpenBSD/390
Tom Duerbusch wrote: IUCV and VCTCA, works well in 12 MB. OSA and Hipersockets, 48 MB. Now back on tangent to the origional discussion... Speaking of tangents There's OCO in Linux/390 ... is it *necessary* to run a guest OS or is it possible to run (and run efficiently?) a guest OS like, um, say, just hypothetically, OpenBSD/390 without any OCO? -- Jack J. Woehr# If your neighbor prays too loud http://www.well.com/~jax # in church, go home and lock your http://www.softwoehr.com # smokehouse. - Harry S Truman
Re: DNS question tangents to OpenBSD/390
On Dec 20, 2006, at 12:37 PM, Jack Woehr wrote: Tom Duerbusch wrote: IUCV and VCTCA, works well in 12 MB. OSA and Hipersockets, 48 MB. Now back on tangent to the origional discussion... Speaking of tangents There's OCO in Linux/390 ... is it *necessary* to run a guest OS or is it possible to run (and run efficiently?) a guest OS like, um, say, just hypothetically, OpenBSD/390 without any OCO? Sure. I don't know how much OCO there really is anymore, actually. The QDIO drivers are available now, and I think there's even a 3590 implementation. You could certainly get a Linux system, with networking, built without anything that isn't Free Software. Adam
Re: DNS question tangents to OpenBSD/390
On 12/20/06, Adam Thornton [EMAIL PROTECTED] wrote: I don't know how much OCO there really is anymore, actually. The QDIO drivers are available now, and I think there's even a 3590 implementation. You could certainly get a Linux system, with networking, built without anything that isn't Free Software. I suppose having source code that produces something that works in Linux is helpful to understand how it works, but I could not tell whether that's enough to implement the function in another operating system. Many moons ago I studied the lcs device driver to find the cause of a problem. I fear that when I had to learn general S/390 I/O from that, it might have made a big difference for the rest of my life ;-) Rob
Re: DNS question tangents to OpenBSD/390
On Wednesday, 12/20/2006 at 09:07 CET, Rob van der Heij [EMAIL PROTECTED] wrote: On 12/20/06, Adam Thornton [EMAIL PROTECTED] wrote: I don't know how much OCO there really is anymore, actually. The QDIO drivers are available now, and I think there's even a 3590 implementation. You could certainly get a Linux system, with networking, built without anything that isn't Free Software. I suppose having source code that produces something that works in Linux is helpful to understand how it works, but I could not tell whether that's enough to implement the function in another operating system. As I see it, there are three categories of function: 1. machine interfaces that are document in the Principles of Operation or a Device Description book 2. machine interfaces that are not so documented, but whose existence is disclosed in, and behavior inferred from, the available source code (to the extent needed to replicate the functionality present in the source code) 3. machine interfaces that are neither documented nor used in open code An OCO module may use the above in any combination, so I'm not sure what Jack is asking about: OCO modules (none remain - the 3590 tape driver was open sourced back in May) or interfaces in category 2. Alan Altmark z/VM Development IBM Endicott
Re: DNS question tangents to OpenBSD/390
Alan Altmark wrote: An OCO module may use the above in any combination, so I'm not sure what Jack is asking about: OCO modules (none remain - the 3590 tape driver was open sourced back in May) or interfaces in category 2. I was really asking two questions (which now seem to be answered): 1. Is there anything proprietary clashing with the OpenBSD philosophy license required to create an OpenBSD guest? 2. Is there anything proprietary that's going to act as a technical brick wall if folks start coding towards OpenBSD on VM? Apparently the answer is no. It sounds like OpenBSD might serve certain requirements better than Linux in the VM environment. -- Jack J. Woehr# If your neighbor prays too loud http://www.well.com/~jax # in church, go home and lock your http://www.softwoehr.com # smokehouse. - Harry S Truman
Re: DNS question tangents to OpenBSD/390
There's OCO in Linux/390 ... is it *necessary* to run a guest OS or is it possible to run (and run efficiently?) a guest OS like, um, say, just hypothetically, OpenBSD/390 without any OCO? If you don't have or don't want to use 3590 tapes, yes.
Re: DNS question tangents to OpenBSD/390
Thanks, I was hoping that I wasn't dreaming it. Chuckie: please don't start any threads regarding dreams about Uli! Richard Heritage wrote: According to a presentation given by Ulrich Weigand at the last SHARE, the 3590 support went open source in March of this year, so there are no longer any OCO modules. Richard Heritage Lead Systems Software Engineer IT @ Johns Hopkins Rich Smrcina [EMAIL PROTECTED] 12/20/06 12:56 PM Only the 3590 tape driver (and I even thought that was being resolved). If you don't need 3590 support, it's all good. Rich Smrcina VM Assist, Inc. Cell: (414)491-6001 Catch the WAVV! http://www.wavv.org WAVV 2007 - Green Bay, WI - Original Message - From: Jack Woehr [EMAIL PROTECTED] Date: Wednesday, December 20, 2006 11:37 am Subject: DNS question tangents to OpenBSD/390 To: IBMVM@LISTSERV.UARK.EDU Tom Duerbusch wrote: IUCV and VCTCA, works well in 12 MB. OSA and Hipersockets, 48 MB. Now back on tangent to the origional discussion... Speaking of tangents There's OCO in Linux/390 ... is it *necessary* to run a guest OS or is it possible to run (and run efficiently?) a guest OS like, um, say, just hypothetically, OpenBSD/390 without any OCO? -- Jack J. Woehr# If your neighbor prays too loud http://www.well.com/~jax # in church, go home and lock your http://www.softwoehr.com # smokehouse. - Harry S Truman -- Rich Smrcina VM Assist, Inc. Phone: 414-491-6001 Ans Service: 360-715-2467 rich.smrcina at vmassist.com Catch the WAVV! http://www.wavv.org WAVV 2007 - Green Bay, WI - May 18-22, 2007
