Do you follow the IBMVM Discussion List? (In which case, if the
answer's, Yes you might reasonably expect them to have revised and
already know the answers to the other nine. :-) )
A couple of, matters arising that're otherwise apropos of nothing ...
Do people who survive on a diet of pizza
If you specify the HOLD option on your LOGOFF / DISC command:
LOGOFF HOLD
-- or --
DISC HOLD
do the symptoms change at all?
To quote from the HELP ...
HOld
causes the non-SNA TTY display terminal
and ... purely becasue I'm paranoid ...
IPL 190 CLEAR PARM SAVESYS CMS
Regards
jeff
If I wanted a completely self-contained program (no calls to PIPE, Rexx,
etc) then I think I'd be tempted to code a sort routine into the program.
After all - the entire, file to be sorted is in-store, it's not going t
o
be very large (even a rather inefficient bubble sort should be able to
I have no direct experience of the specific device in question, but would
a slow poll on a CP REWIND command do the trick? Say something like ...
Do 10
Mounted = 1
CP REWIND 181
If Rc == 0 then Leave
Mounted = 0
CP SLEEP 1 MIN
End
If \ Mounted then
Do
Timeout Logic
Hello Richard,
If a Q ALLOC shows the SPOOL (DUMP) areas on the pack as being empty, and
there's no other data on the pack that should be preserved then, provided
the new pack is format/allocated in the same way as the old pack, I see n
o
requirement to copy the contents.
However, given
It's been a while but, if I may, I think it's time to repeat my perennial
plea on behalf of those who, like me, have good reasons to access this
list in, Plain Daily Digest Mode.
When possible, could you PLEASE use Plain Text for your messages and
ESPECIALLY PLEASE, when possible, avoid
Regarding the, problem of perhaps wishing to only collect a subset of
the monitor records for, MONWRITE / post-processing activities while
still needing a fuller set of records for realtime monitoring, it is
really a trivial exercise to write a PIPE that collects MONITOR records (
a
la
Jim,
Check out SC24-6098-02 (z/VM Group Control System) Appendix A (Tailoring
and Building the GCS Nucleus) - subsection headed, Creating a New GCS
Nucleus Build List. Items 7 and 8 at the bottom of page 544 through to
the top of Page 547) are what you need.
It's terse to the point of
Hi Anne,
Unless you discover a bug in CP (HIGHLY unlikely) then nothing that you d
o
in a Class G virtual machine can impact the first-level system (other tha
n
maybe in terms of excessive resource consumption if your system is
ahem, inappropriately tuned grin).
Maybe it's the, do it all again
The certificate makes a great background for your PC's desktop (I've been
using mine since about 30 minutes after I first discovered scanners). The
resolution's improved a bit over the years as scanner technology has move
d
forward. :-)
Congratulations and Welcome!
Sir Jeff the Builder of
If you have TRACK installed, that'll answer the question on an ad-hoc
basis without any further programming effort on your part. Otherwise, if
it were me and I were looking for a reliable, programmable interface I
reckon I'd be starting to think about writing an extension to QUERY ...
Hello Fred,
I hope that you (eventually) find this useful, but I'm going to
unhelpfully start by suggesting that you take a step back and delete from
your mind the idea that VM has a, console.
The VM paradigm is fundamentally different to the OS paradigm - in VM, an
y
appropriately privileged
I have had lots of experience with DDR - not recently, but I'm pretty
confident that this should still be accurate.
I've no experience pre-3330 and the following is written in a 3390 contex
t.
Assuming you're runnning DDR in a virtual machine and moving from and to
the same VIRTUAL cylinders
Chris Langford has already stated the fundamental answer to the original
question - I'll re-state it for emphasis before we fly off on too many
tangents and it gets lost:
To allow complete virtualisation of minidisks of any size up to and
including full-pack. Virtualising a full-pack
An Assembler Program That ABENDs ...
A little convoluted, and it would need a bit of wrap-round code to
generalise it and do things like verify load/start address, but it seems
that one could write an EXEC that effectively, HXd based on the
following ...
load dmsbtp
With a small amount of trepidation (but inviting stomping from anybody wh
o
feels that I'm off-base here) can I remind folk that, on IBM mainframe
hardware, MIPS aren't the whole story. There's channels too - and in an
I/O-related situation their power needs to be ADDED to the CPU power to
Ahah! Guess I just got lucky then! :-)
Looks like several nice features in there that I'm unlikely to ever get5
to use in anger.
Seen a GA date yet?
Alan / David / Adam,
Thanks for your responses - it would seem that my understanding of the
rules is not at odds with yours and that such a strategy is at least
acceptable from a legal / contractural standpoint.
Support of old DASD geometries was my specific thought - but I love the
idea of,
NO you can not run VM - any version - under
Hercules.
Now, this is one of those, But why would you want to do this? questions
,
but howabout running z/VM in a Hercules that was itself running under
Linux in a virtual machine that was being delivered using the same z/VM a
s
was running,
To save into CMS files, somebody would have to teach CP how to WRITE CMS
files - MUCH more challenging than its current ability to (simply) read
them. (SAVESYS needs to be a CP function - just because most SAVESYS
commands are executed within CMS doesn't mean that we can simply throw
away
To protect oneself from rapid depletion of backups given a, Post me when
the SDF changes situation and a beserk SDF-generator one simply needs to
apply a minimum age on any backup-to-be-deleted. Couple that with a
maximum-versions-to be-retained mechanism plus a notify-when-backup-
Unsurprisingly, it looks as if I need to clarify a little ...
Tom's not happy with, assuming R/R support for Reloc 0 Minidisks. My
take here is that CP is not unilaterally adding any R/R activity - if the
disk at Reloc 0 is a VSE minidisk and VSE doesn't issue any R/R then CP
won't either -
Well Alan, as you've, Opened the floor for discussion - here's my two
penn'orth on how I think it SHOULD work.
I think we're all pretty-much agreed on Virtual R/R support within a
single VM image, it's when to issue a REAL R/R that's the sticking-point.
I would contend that a REAL R/R should
Somebody please pass me my hat - it's lunchtime.
I'm astonished and delighted.
Er ... meanwhile back at the original problem ...
Folks, Ed is reporting that EVERY attempt to issue CP IPL command to ANY
vdev is ALWAYS generating HCPCLS174E on a system that is otherwise runnin
g
happily. Now, sorry and all that, but I just don't buy the idea that thes
e
symptoms match
Hello Alan,
Seriously, what in your opinion are the odds that a problem with a paging
volume on a running system that's having NO OTHER paging problems could
produce the symptoms of ONLY and ALWAYS failing on IPL vdev?
Replacing paging volumes might be simple and easy but -given the symptoms
I've been sitting on my thumbs ever since this thread started, expecting
the, Ahah! post at any minute ... but it's not arrived.
If I'm reading the problem definition correctly we have a consistent,
repeatable problem - that alone makes me suspect that it's not a dodgy
chunk of pagespace.
On the, Get close to the application thread, remember that any I/O
request satisfied from MDC is likely to be satisfied (on modern boxes) in
less than a microsecond. Even cached, anything that involves a
conversation with a channel is going to experience a service time that is
several orders
In this specific instance (I wanna move a dedicated paging volume) wher
e
the data contained on the pack is purely ephemeral and only relevant unti
l
the next SHUTDOWN, it can be worthwhile to know that, once CP's recognise
d
a CP-OWNED volume at (usually) IPL time and added it to the CP-OWNED
Further to the comments regarding sharing of DASD between CMS users and
OS - this was routine behaviour at a former employer of mine (back when
DASD was always in short supply). We would format the DASD on the OS side
,
allocate a dataset covering the back end - and then zap the VTOC to flag
This really needs to be core VM function ...
David,
Let me reiterate that comment as I understand it, because I think it's
possible to interpret the scope of what you mean by, Core VM function i
n
different ways - and it's a definition that we need to agree upon if we'r
e
to have a fruitful
I recall how excited I was when I first learned about the *CCS support
mechanism that is used to support VTAM logon terminals in CP. The concept
of having an RDEVBLOK as the gateway to a server (didn't call 'em servers
back then - big mistake) opened up so many possibilities for device
This has now been resolved. MXG Update 24.035, available from Merrill,
addresses the problems.
Many thanks to all who contributed to identifying and resolving this
problem.
Regards
Jeff
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