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Romney
Romney White
Senior Technical Staff Member
z Systems Architecture and
Folks:
Please forward to the appropriate individuals in your organizations.
Romney
Romney White
Senior Technical Staff Member
z Systems Architecture and Technology
607-785-3873
- Forwarded by Romney White/Endicott/IBM on 09/22/2015 09:49 AM -
From: Marcel
,
configuration file structure, brief description)? New clients would prefer
to start from something that is known to work rather than inventing their
own approach from scratch.
If you are willing to share, please get in touch with me off list.
Romney
Romney White
Senior Technical Staff
Source Software packages run on Linux on z
Systems and exploit all of its advantages.
Romney
Romney White
Senior Technical Staff Member
z Systems Architecture and Technology
607-785-3873
--
For LINUX-390
I assume that other disk architectures simply don't report the amount of
waster space per track because it isn't accessible (e.g., on SCSI disk).
The very real benefits of being able to write variable-length blocks on
a disk is something the Unix crowd hasn't discovered, I guess.
Romney
On Thu, 1
Tom:
Actually, I believe the answer is "It monitors itself".
Romney
On Wed, 10 Dec 2003 11:19:14 -0600 Tom Duerbusch said:
>You can't anymore? The IBM 4341 use to show you its temperature when
>you went into CEKEY mode on the console.
>
>Tom Duerbusch
>THD Consulting
>
>This question is right u
12-03 at 18:54, Romney White wrote:
>> Mark:
>>
>> VSWITCH has an *optional* associated OSA Express device. If you don't
>> have one, you don't have external connectivity, but a VSWITCH is just
>> really a QDIO Guest LAN with an optional associated real QDIO de
Mark:
VSWITCH has an *optional* associated OSA Express device. If you don't
have one, you don't have external connectivity, but a VSWITCH is just
really a QDIO Guest LAN with an optional associated real QDIO device.
Romney
On Wed, 3 Dec 2003 18:18:22 -0500 Post, Mark K said:
>Hmm. I didn't real
Adam:
On behalf of all Canadians, I request that you please visit
http://22minutes.com/realwrapper.php?target=apology_256.rm
We're all sorry. Really. And keep your head up, especially on the ice.
Romney
On Tue, 4 Nov 2003 09:19:47 -0600 Adam Thornton said:
>On Tue, 2003-11-04 at 09:10, Mc
Mark:
Maybe it was incorrectly defined as an XC-mode guest.
Romney
On Thu, 2 Oct 2003 13:38:37 -0400 Post, Mark K said:
>Something about this rings a bell. Someone recently had a problem, and the
>fix was to define the Linux guest as a machine type of ESA, not XA. I can't
>remember if that cam
All it takes is for Linux to issue the appropriate Assign and Unassign
channel commands to the shared tape. Sysplex would be serious overkill.
Romney
On Fri, 13 Jun 2003 12:46:28 -0500 James Melin said:
>I am forking this particular item because mostly, my deep dark subconscious
>floated a questi
Yes, and then by my reading you went on to say that somehow there was a
difference in function and ease of use in FCON's favor, apparently because
it is more expensive than the toolkit.
Romney
On Thu, 12 Jun 2003 20:44:44 -0400 David Boyes said:
>On Thu, Jun 12, 2003 at 09:15:05PM -0400
Performance Toolkit *is* FCON with added function.
Romney
On Thu, 12 Jun 2003 16:46:22 -0400 David Boyes said:
>> Has anyone running Linux under VM attempted to compare or evaluate the
>> differences between the Velocity Software's ESALPS and IBM's VMRTM/VMPRF?
>
>RTM and PRF are going away, repl
Rich:
They are not just supposed to be the same speed - they are :-)
(with the exception you noted).
Romney
On Thu, 6 Mar 2003 11:21:10 -0600 Rich Smrcina said:
>They are supposed to be the same speed as the other engines. Except in the
>case of the MP3000, which has a full speed IFL (as oppose
22:00:38 -0600 Lucius, Leland said:
>> -----Original Message-
>> From: Romney White [mailto:[EMAIL PROTECTED]
>> Sent: Wednesday, March 05, 2003 7:49 PM
>> To: [EMAIL PROTECTED]
>> Subject: Re: Kernel patch to add VM IPL PARM support
>>
>>
>> L
Lucius:
The string provided by z/VM is terminated by a byte of binary zero, at
least according to the CP Command and Utility Reference. If it is, it
should be easy to find the end of the values supplied on IPL.I would
recommend ensuring the high-order byte of GR0 is zero when the SAVESYS
command i
Leland:
One method is to duplicate the disk and apply your changes to the copy.
When you are happy that what you have is what you want, change the User
Directory entries of all the guests who use the shared disk to LINK to
the new one or simply interchange the addresses of the two mindisisks in
th
Brian:
It sounds as though you got HiperSockets *Guest LAN* working. Hipersockets
(real or virtual) currently does not support IEEE 802.1q VLAN, and in z/VM
4.2, it does not support multicast (z/VM 4.3 adds this, as well as QDIO
type Guest LANs, which support broadcast). That's what the Linux mess
I'm pretty sure we understand the need. A formal SHARE requirement is
unnecessary (though whether one is written is, of course, up to the user
community).
Romney
On Wed, 15 Jan 2003 11:37:24 -0500 Peter Webb, Toronto Transit Commission said:
>Sounds like someone needs to start writing a SHARE req
Mark:
I think it's probably referring to z/VM TCP/IP APAR PQ34318. However,
that doesn't look to me like the problem you're having. Refer to
http://www.vm.ibm.com/related/tcpip/tclnxsvc.html#lxsstack for details
about recommended TCP/IP stack service.
Romney
On Fri, 10 Jan 2003 16:45:48 -0500 Ma
Mark:
That's one answer, but the other is to use a 2074, which allows you to
Telnet to your host and look like a locally attached 3270 device, which
is what z/VM requires for installation.
Romney
On Wed, 8 Jan 2003 17:57:11 -0500 Post, Mark K said:
>Well, then you have your answer. :)
>
>Mark P
ms Programmer
>Internal Revenue Service - Room 6527
> Constitution Avenue, N.W.
>Washington, D.C. 20224
>
>Voice: (202) 927-4188 FAX: (202) 622-3123
>[EMAIL PROTECTED]
>
>
>
>-Original Message-
>From: Romney White [mailto:[EMAIL PROTECTED]]
>Sent: Wed
explicit routing, but rather
>use the "DefaultRoute" in VM's TCPIP configuration?
>
>
>Michael Coffin, VM Systems Programmer
>Internal Revenue Service - Room 6527
> Constitution Avenue, N.W.
>Washington, D.C. 20224
>
>Voice: (202) 927-4188 FAX: (
Michael:
Run the test with TRACE IPUP IPDOWN ICMP enabled. It looks as though the
packet is being dropped by VM TCP/IP. The trace will show what is going
on.
Romney
On Wed, 18 Dec 2002 10:45:19 -0500 Coffin Michael C said:
>Hi Rob,
>
>Yes, pinging works fine to/from the guests. In fact all IP t
1492 on the Linux/390 end in the MP3000.
>
>Mark Post
>
>-Original Message-
>From: Romney White [mailto:[EMAIL PROTECTED]]
>Sent: Friday, November 22, 2002 7:38 PM
>To: [EMAIL PROTECTED]
>Subject: Re: Missing telnet output (another stupid newbie question)
>
>
>
Steve:
Sounds like you need to turn on local echo in your Telnet client.
Romney
On Fri, 22 Nov 2002 18:34:17 -0600 Steve Marak said:
>Adam, Mark, thanks for your quick responses both of which suggested MTU
>size as the culprit. I left it out of my previous post, but we are
>explicitly specifying
Moloko:
What level of VM TCP/IP are you running? APAR PQ41584 addressed this
problem, but that was in TCP/IP FL 310 and FL 320 and is part of the
base of VM TCP/IP in z/VM V4.
Romney
On Wed, 6 Nov 2002 09:34:48 +0200 Moloko Monyepao said:
>I am running the following Redhat 7.2 kernel under VM 4.
World hunger comes to mind.
Romney
On Wed, 16 Oct 2002 05:21:43 +0800 John Summerfield said:
>On Tue, 15 Oct 2002, Mark Perry wrote:
>
>> I've been trying to understand the headache that Jim mentions relating to
>> the lack of devfs support in SuSE zinux. All that devfs buys you is the
>> abilit
Rob:
So doesn't the question become whether the requirement is important
enough to warrant a redesign? How important is this requirement, Mark?
Romney
On Tue, 24 Sep 2002 22:53:36 +0200 Rob van der Heij said:
>At 18:49 24-09-02, Post, Mark K wrote:
>
>>I would like to see a "remove device" comm
Mark:
One useful alternative to the standalone dump utility is the VMDUMP
command. It produces a core image dump as a spool file that can be
loaded onto disk using the CMS DUMPLOAD command and examined using
the Dump Viewing Facility and (soon) the VM Dump Tool. While there's
no Linux-specific su
Vic:
I'm told (by someone who knows duct tape) that Hipersockets Guest LANs
perform better than QDIO Guest LANs, largely because the former are
synchronous and the latter are asynchronous. However, I don't believe
the differences are enough to worry about, particularly if (as you say)
broadcast i
Scott:
Yes. z/VM supports expanded storage with both its 32-bit and 64-bit
Nucleus builds.
Romney
On Thu, 13 Jun 2002 13:01:16 -0400 Scott Chapman said:
>z/OS 64-bit implies no expanded storage. Is z/VM different in that regard?
>
>Scott Chapman
>American Electric Power
>
>
>
>
>
Mark:
Insofar as your first question is concerned, the last I knew, the VM:*
products all expressly prohibit using distributed IUCV (i.e., they
specify LOCAL=YES on the IUCV CONNECT).
Romney
On Thu, 13 Jun 2002 10:53:15 -0500 Mark Wheeler said:
>I have customers interested in clustering virtual
Jim:
DEFINE CPU does not cause a reset. CPUs can be added dynamically, just
like the real hardware. Maybe you're thinking of DETACH CPU, which
does cause a reset.
Romney
On Thu, 13 Jun 2002 12:11:39 EDT Jim Elliott said:
>From: Nish Deodhar <[EMAIL PROTECTED]>
>Subject: Re: Addition of new CPUs
There's a new contribution to the VM Download library called SHUTTRAP.
It provides a mechanism for exploiting the automated shutdown facility
from CMS. Enjoy!
Romney
On Fri, 31 May 2002 11:20:05 -0600 Ferguson, Neale said:
>I didn't see any reference in the "Whats New" stuff but I have a patch f
Max:
What kind of network. For 802.3 Ethernet, use MTU 1492. Otherwise, use
1500. Smaller is not better; correct is better, so find out how the
rest of your network is configured (ask your PC, for example).
Romney
On Tue, 28 May 2002 19:06:59 -0400 Post, Mark K said:
>Max,
>
>The fact that you'
Brad:
I'm not aware of any published documentation that describes the
integrated console interface. I believe that the intellectual
property associated with this interface was released by virtue
of its disclosure in the GPL source code for the console driver
in Linux for S/390. However, I'm not a
Lionel:
Without the timer patch, Linux wakes up every 100 milliseconds or so.
That causes VM to assume it's actually doing something, so its working
set never gets trimmed. Your best bet is to apply the timer patch.
Romney
On Thu, 16 May 2002 09:51:18 -0700 Lionel Dyck said:
>Is there any reaso
---
>Lionel B. Dyck, Systems Software Lead
>Kaiser Permanente Information Technology
>25 N. Via Monte Ave
>Walnut Creek, Ca 94598
>
>Phone: (925) 926-5332 (tie line 8/473-5332)
>E-Mail:[EMAIL PROTECTED]
>Sametime: (use Lotus Notes address)
>AIM:
Lionel:
I think it's easy to say that SAF could eliminate its control of the
directory but also trivial to construct a counterexample situation
that would deliver you to the base VM tools rather rudely, with no way
of going back. If you're right, an existence proof would be (a) easy
and (b) incon
13:36 -0700 Chet Norris said:
>
>>. Any time you see a posting from Alan Altmark, or
>>Romney White about some aspect of VM or VIF, pay particular attention,
>>as they're intimately familiar with the product from the inside out.
>
>Sorry Romney, I sent the reply to a p
a CP response to my reply and the
>install just sits there waiting.
>
>--- Romney White <[EMAIL PROTECTED]> wrote:
>> Chet:
>>
>> The user name under VIF for TCP/IP is $TCPIP, *not* TCPIP. You need
>> to
>> change the iucv parameter to specify $TCPIP.
Chet:
The user name under VIF for TCP/IP is $TCPIP, *not* TCPIP. You need to
change the iucv parameter to specify $TCPIP.
Romney
On Fri, 19 Apr 2002 03:43:01 -0700 Chet Norris said:
>I can't Telnet into the image, so I'm not getting far enough to do
>either. IBM says that the user name under VI
Jim:
Someone with better Linux skills than I will need to jump in here to
address your questions about YaST and silo. It sure sounds like you
either don't have a good IPL record or what it points to is bogus.
Romney
On Mon, 11 Mar 2002 10:57:35 -0600 James Melin said:
>Right. That's a semantic
Jim:
The device status is Channel End + Device End, which is normal. The
subchannel status is Incorrect Length, which may indicate that you
have something wrong with your image on disk. The associated channel
program should start at absolute location 8. See "Initial Program
Loading" in the Princi
Richard:
Yes. 64-bit z/VM supports 31-bit guests, as well as 64-bit guests.
Romney
On Fri, 1 Mar 2002 11:27:27 -0700 Richard Feldman (WFF) said:
>To: LINUXLST--WFFCAL Linux 390 Discussi
>
>Subject: Running 31bit SuSE 7.0 2.2.16 under 64 bit z/VM 4.2
>
>Currently we are running SuSE 7.0 2.
Mark:
No reason other than performance, which of course is a perfectly adequate
roadblock to the whole idea of Intel emulation.
Romney
On Tue, 19 Feb 2002 11:05:34 -0500 Post, Mark K said:
>But that was my question. Since IBM and VMWare are partnering on this
>effort, would IBM have contribute
Mark:
Conceptually, there are bound to be similarities. From a code base point
of view, there is no feasible means of integration, if only because z/VM
is Assembler and PL/X. Of course, the architectural differences present a
much more significant barrier to having any commonality in the code bas
So how did such a large packet end up on the
>CTC between Linux and VM?
>
>-Original Message-
>From: Romney White [mailto:[EMAIL PROTECTED]]
>Sent: Wednesday, February 13, 2002 11:02 AM
>To: [EMAIL PROTECTED]
>Subject: Re: TCP/IP and Linux
>
>
>Bill:
>
>The me
Bill:
The message is documenting the fact that Linux sent a malformed block
of packets across the CTCA. The blocks may be up to 32K (32768 bytes)
long, so a packet starting at 33134 is clearly an error. The offending
packet is at offset 31628 in the buffer.
I presume that there is a mismatch in
Marcy:
I would add the word "enough" after "large" in Alan's first comment. It
makes no difference if your MTU is 1500 bytes or 56K bytes if the longest
packet you send is 500 bytes.
Romney
On Tue, 12 Feb 2002 17:29:48 -0500 Alan Altmark said:
>On Tuesday, 02/12/2002 at 01:42 PST, Marcy Cortes
Marcy:
The MTU size allowed is limited by the large envelope size. Try changing
your LargeEnvelopePoolSize specification.
Romney
On Tue, 12 Feb 2002 11:33:39 PST Marcy Cortes said:
>Thanks everyone for you help, esp. Jeremy. I got a fix from
>Suse and now VM Guest LAN is working just fine.
>
>
Mark:
Pam Christina ([EMAIL PROTECTED]) is probably responsible for this change.
Romney
On Fri, 18 Jan 2002 12:09:07 -0500 Post, Mark K said:
>Hey! I just noticed that the web page at http://www.vm.ibm.com/linux/
>points to linuxvm.org. Cool! Now I can start putting up some banner ads
>and m
Ross:
I'm not sure what you're referring to. There is no hardware restriction
to setting the TOD clock without human intervention. Bit 10 of CR 14 is
the TOD-Clock-control-override control and can be set to allow software
to set the TOD Clock without manual intervention. This is how z/VM sets
it
Gordon:
Choose "Linux only". You might as well dedicate the processor, unless
you want to create a test LPAR.
Romney
On Mon, 17 Dec 2001 15:41:40 -0800 Wolfe, Gordon W said:
>We just recently upgraded to a G5 processor and got an IFL engine with the
>other processors. Just last night I did an
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