if this matters for your query.
--Peter Hunkeler
>What is the *smallest* volume size everyone sees in general use?
>
>For example, will we create any problems if we assume that "everyone"
>has or can define at least a 3390-9 size volume these days? Wha
if this matters for your query.
--Peter Hunkeler
-Original Message-
From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf
Of John Eells
Sent: Tuesday, June 28, 2016 9:19 AM
To: IBM-MAIN@LISTSERV.UA.EDU
Subject: Minimum Volume Sizes in the Wild
What
Relaying from GMX Webmail
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> Gesendet: Freitag, 24. Juni 2016 um 12:29 Uhr
> Von: "Peter Hunkeler" <p...@gmx.ch>
> An: IBM-MAIN@LISTSERV.UA.EDU
> Betreff: AW: OT: Test regarding ReplyTo - Please ignore
>
> Replying from AltaMail.
>
Replying from AltaMail.
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Von: Peter Hunkeler <p...@gmx.ch> An:
IBM-MAIN@LISTSERV.UA.EDU Betreff: OT: Test regarding ReplyTo - Please ignore
Datum: 24.06.16, 12:28
Havong some troubles with Reply-To. Please ignore this message.
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es.
A step level switch, i.e. EXEC parameter, would make sense for exactly this
reason, I guess.
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data sets (GDS) currently associated with the GDG.
Questions would be how to handle newly created, but not yet rolled-in GDSs
(jobs running in parallel). And what about new GDS created in step n of a job
running in parallel, and step n+m referring to that GDS? There are probably
more conflicts to
n't it?
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>http://petelancashire.com/gallery/main.php?g2_itemId=7139
I guess you can't make this availble to bitsavers, can you?
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data
set still adds an entry to the TIOT? Only authorized code is allowed to as for
the entry to be added to the XTIOT. I guess IDCAMS is using the XTIOT, but user
programs, including TSO and ISPF do not.
OTOH, why not deleting the GDSs with IDCAMS "DELETE your.gdg.base.* MASK"
? Did you go into ULOG
on both? If so, messages will only show up on the session where you entered
ULOG first.
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aits for either an MVS STOP command or until a
specified time interval has expired. It sets up the timer and the CIB, then
WAITs for one of the two events to happen.
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in a UNIX initiator AS, but the jobid will be Snnn in both cases.
But even standard MVS services might be run as STC or as batch job. Some run
CICS or IMS as STC, some as batch job. So, CICS/IMS will show up as either
Snnn or Jnnn.
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S.
That makes the highest numbered, accessible byte to be at address x'7FFFEFFF'
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>... OTOH: It might run under Master Scheduler not JES.
Makes perfect sense to me. Firstly MOUNT is an MVS command, and secondly, one
would not be (or have been) able to MOUNT a volume when JESx was down.
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namically allocating a SYSOUT file? If not,
JESx must know about that address space and thus the Annn number would be
managed by JESx the same way JESx is managing the number for TSU, STC, and
batch jobs.
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>>I guess IBM's thinking is that we should just treat it as a magic cookie. It
>>is guaranteed to be 8 EBCDIC characters that will identify a job or the like.
>>End of story.
>>
>Used to be 7, IIRC.
Don't you mix that up with TSO Userids which are restricted t
I seem to remember). Before that, APPC
initiators were used to provide a home for non-local child processes.
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;ls" will not show this file.
"fsinuse" will show processes that use files in a specific directoy, but /tmp
might be used by many. So, how do you indentify the one eating up all space?
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that order is selected on the basis of address space dispatching priority.
> Once the control program selects an address space for dispatching, it selects
> from within the address space the highest priority task awaiting execution.
> Thus, task priorities may a
never cared to look at what TRANSMIT allocated. I just tried and found that
TRANSMIT overrides the block size with 3120, when the data set already existed
(and uses this when it allocates the data set).
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> However, I don't think that is your problem. The XMIT dataset should be FB
80 3120.
Just for the records: The XMIT data set *must* be RECFM=FB, LRECL=80.
The blocksize should be as large as possible to minimize the number of I/O
operations to be run. 27920 is optimal.
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that Service Class assigned will get the new dispatching priority at
time. And this may change the order of WEBs already on the WUQ.
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> Alas, ISPF DSLIST does not show created date for migrated data sets.
Those dates are in the data set's DSCB. There is none for migrated ones. So for
once, ISPF is not guilty.
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rately from the data field as well.
But I'm fine with this. Just wanted to make sure I'm not misinterpreting
anything.
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printing.
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>There are manuals for DFSMSdss that should be helpful on the ibm website.
ADR and ADRY messages are documented "z/OS MVS System Messages Volume 1 (ABA -
AOM).
As obvious as can be, isn't it?
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rol statements (I intentionally don't called it "language") are a
nightmare, no doubt. Hopefully noone will ever consider the above as something
suitable for production. Overkill; not maintainable.
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>So if you want to use EAV's, make them SMS. ...
... and be prepared to have to deal with strange errors with software which is
not EAV-savvy, i.e. which show strange behaviour with cylinder managed block
addresses. E.g. code written with SAS-C may not like them.
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hings to come) just as Expanded Storage was.
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fied.
So, when we run with the base policy, nothing is limited via RG, because there
are no limits set. When need arises, we simply switch to another policy, based
on what limit we want to set.
We're having good success with this.
-
ssing takes so long.
I thought PAUSE / RESUME is a slim process.
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USE, the question
marks disappear.
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looks at the OPSW
in the RB, which points to PAUSE.
Anyway, I still am interested to learn how the flow from the application TCB/RB
to DBM1, its SRB and back are working.
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hen finished, the SRB cross-memory posts the TCB/RB.
Is this roughly right? I'm just curious.
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? Of yourse 1/100s is a long time so other
things may have happened inbetween, not being caught ba MA-Tune's sampling. I
wonder, however, if and what could case this to take longer that what I would
expect.
Any clue?
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my PC
is the one that gets the mail from there via POP and DELETE.
Apple's mail client is only configured to be able to send out, because I
consider this app less than basic in functionality.
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f 42%
> Uhm... I don't see any conditional branch at the start of the loop that
> branches or falls through?
I'm with Fred here. Out of curiosity, the code you posted seems to be
incomplete. Is it?
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o determine
how many parameters were passed. That separate parameter could be within the
parameter list (for example, the first parameter list slot) or could be in
register 0."
So, no, you don't miss anything.
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a JES3 command or using SDSF or (E)JES, I would say (can't try
myself).
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changes with every "cd" command.
When you change the quotes to double quotes, PS1 will contian the current
working directory at login time, and this will not follow you "cd"s.
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ID=`id -u `
if [ "$UID" = "0" ]
then...
becomes this:
if test $(id -u) = 0
then...
And there are other characters like the pipe symbol which can cause troubles.
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.
I could not build a case where space was actually release after being allocated
via IEFBR14 step, neither with SMS-managed nor with non-SMS managed data sets.
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ork"
from Laura Blodgett / Dieter Wellerdiek. But this aspect is not discussed there.
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me to think about non-dispatachle flags, and the idea that
only dispatchable work units (WU) may sit on the work unit queue (WUQ). The
possibility of allowing WUs to sit on the WUQ while not being allowed to be
dispatched just didn't occur to me. Nice.
> Pity. I can hope that the new emulation they want to use can handle it.
> (Saying in German: Hope dies last - die Hoffnung stirbt zuletzt).
We're using Reflection from Attachmate (if I'm not totally wrong). This handles
any screen dimensions I wanted to use so far.
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> Can anyone tell me where this is? Don't see it under Options, 6. Set screen
characteristics...
When writing ISPF Settings I meant ISPF option 0
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>It wasn't private.
Yep, and when I finished reading I wondered what secrects he wanted to
keep. Nothing dramatic was unveiled. IMHO.
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uot; monitor allows for a
reasonable font size, provided it's a business montor and not a movie viewer
monitor. I mean to say it should have a vertical resolution of 1080 or more
(which is hard to find, unfortunately).
se any number of rows but only 80 or 132 columns. The products
still don't user more than 24 (or is it 27) rows but at least they don't abend
anymore. Yeahhh... :-)
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options
STD, DATA, MAX which has great influence on how ISPF behaves (it is called
"screen size" or something the like). Have you set this to either DATA, or my
preferred setting MAX. (I don't like the constant resizing whch happens with
DATA)
on office and other workstation programs.
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g input phase as part of READER processing. In the case of a
TSO user submitting a job, this processing mostly occurs as part of the submit,
so within the user's TSO address space.
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date message, since that is
independent of any JCL or JECL statement content.
Some insight anyone?
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To ibmmain.10.ats...@xoxy.net, and other anonymous posters
One of the unwritten rules, at least in my understanding: Tell who you are!
Two ways to do this: Use an email address that shows your name, or, preferably,
sign your post with your name, first name at least.
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dware needs to translate "absolute 0 of this
LPAR" to a *physical* memory address (how this works in detail is far beyond
my knowledge).
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mpanying my diner, but you've
lost me Anyway, it made my day, thanks :-)
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PMR to get a autoritative answer.
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re no longer around.
Again there once were more members in the plex, but where would I find that
number? D XCF tells me the names of the systems, only.
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I'd have been surprised when
the JES2 MAS member number would be queried by dynamic alloction (the second
case).
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ferred. Just an example from my environment:
o transferring some 1200 bytes, ftp tells me the transfer rate is 245 KB/s
o transferring some 2.3MB, ftp tells me the transder rate is 12'000KB/s
This is a nearly 50 fold difference.
Only compare transfer rates when the file size is similar.
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tify a system in the plex.
>I also think it is something with SMS routines and the ALLOCxx member. I
>searched the MVS Authorized >Assembler Services Refs, but found nothing.
Yep, me too. But as I said, I could not find it described somewhere.
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-
ecuting the job (for dynallocs).
On our four-way sysplex, I just saw values 02 an 07, which puzzles me.
I could not find where the two digit *system identifier* is coming from. Any
idea?
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re one at
the end of the last step allocating the data set with DISP=NEW, OLD, or MOD (if
there are allocations in later steps with DISP=SHR).
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fore the rexx step or may be allocated within the rexx. In
both cases HSM would not care, because HSM is allocating and writing to DSN=A,
freeing its allocation on it when the command has finished.
Initiator will find DSN=B when it does step allocstion. This has nothing to do
with the enqueue be
ep you could rename the data set in the first step, so that
the name HSM and the SORTIN DD are referring to do not match.
//SYSTSIN DD *
HSEND.
RENAME 'MAINT.TEMP.LIST' 'MAINT.TEMP.SORTIN'
and change the DSN on the SORTIN accordingly.
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ich are
formatted as VSAM control intervals (CIs) [snip]
4. The CIs are written to a set of predefined disk active log data sets, which
are used sequentially and recycled.
5. As each active log data set becomes full, its contents are automatically
offloaded to a new archive log data set.
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> But does IEFBR14 do this? :-)
>
> // EXEC PGM=IEFBR14,PARM='--help'
Of course not. On z/OS help is available with "TSO HELP xyz". So I tried "TSO
HELP IEFBR14" and got:
HELP NOT AVAILABLE+
COMMAND IEFBR14 NOT FOUND, FOR MORE HELP ENTER HEL
is link.
The rest of your answer describes how log data makes its way from memory to
archive logs, but it says nothing about reading back from active logs ds when
the data has been offloaded already.
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> ?That doesn?t apply to ?true?, though, right??
> ?Of course not, use some common sense.?
That would require the knowledge of /bin/true to be common sense, which I
doubt. I like the idea of help being available even for what might look like an
obvious command to some.
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> IEFBR14 is not a TSO command.
Really? I learn something new every day, that's great :-)
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> You could join, if you have not done so, the DB2 List for a more focused
> group discussing DB2.
>To join, it is free, go to idug.org
Haven't I said in my post that I do not want to subscribe?
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In German we say "das ging in die Hosen, aber gründlich". Not sure what an
English idiom would be.
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>> LA R15,0
>> BR 14
>>
>> It is a 2 instruction program that is as simple as it gets
>
> I think that LA is actually a XR 15,15 or a SR 15,15.
The latter.
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ld be nice, too. May need to
be able to point someone to a FM so he can read hinself.
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ell code page matches theTN3270 code page (run chcp in
/etc/profile or ~/.profile)
Take care of config files which must be in CP1047. My .profile allows me to
choose the CP at login. Alternatively, use iconv.
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is has been discussed here (or on some other forum
I'm subscribed), but a quick search on IBM-MAIN's as well as MVS-OE's archives
has not returned anything.
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I) can tell.
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Search Interface (CSI) instead of Generic Catalog Locates to
search for data set matching the INCLUDE mask. The new function is enabled via
PATCH area, offset X'54'.
Has anyone enabled the CSI interface by patching ADRDSSU? Any expecience you're
willing to share?
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attach_exec, I believe), i.e. the shell runs in the TSO address space. You can
override this with TSO OMVS NOSHAREAS. So the default behaviour is more like a
local spawn() than a fork().
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have access to any.
Would appreciate if someone with su authority would test as follows
a) logon to TSO
b) TSO OMVS
c) su
d) oedit anynewfile
e) enter some text and save and exit
f) ls -l anynewfile
I'd expect anynewfile to be owned by uid=0.
I also vaguely remember that while in ISPF edit starting
gt;
>Did this work for you on z/OS? Looking for alternatives on a Linux system
>(I haven't su on z/OS):
Yes, it does indeed. I don't have su right neither but I asked a colleage who
has to verify for me (on z/OS V2.1)
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d=0, because it is the sub shell (uid=0), which is reading
from /tmp/sucommandfile as if it was stdin, and execute the commands found
therein.
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Thanks, Kees
I've had a look at a couple of presentaions already, but not this one. Thanks
for the pointer.
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does WLM look at? The defined capacity of the LPAR? The LPAR's share based
on its weight? The number of CPs (LCPs)? What else?
I'm trying to understand how our LPAR setup on the CEC is influencing WLM's
preception of available CPU capacity and with this, its decision on how many
initiators to sta
Forgot to mention that the LPAR is member of a capacity group, so the group
capacity might be another factor.
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Von: Peter Hunkeler <p...@gmx.ch> An:
IBM-MAIN@LISTSERV.UA.EDU Betreff: What CPU capacity does WLM look at when
deciding to start more
ambiguous for me. It could mean nobody knows the truth, or it could
mean this is the truth :-) So, I'd very much appreciate a confirmation if my
understanding is correct. And, of course, please let me know where I'm wrong.
Thanks.
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, WLM must have some figures to calculate with and GC seems to be one.
But what happens at times when the system is capped because the group has been
exceeded? calculating with the GC in this case would yield false results for
sure, doesn't it?
--
'll read that document, too.
>From this I think I've got a good understanding how this works, except from
>the point about the free capacity of the system when WLM has do decide to
>start or not to start more initiators.
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then cancel
the job or allocate new spool space and let the job continue (E jobname,RESET),
or whatever suits your needs.
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elsewhere in the
system and trigger too many times. Make sure you always add MATCHLIM=1
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not seem to be an option to override this restriction.
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SYSC CATALOG0033 00989BC8 EXCLUSIVEWAIT long
list of waiters follows here...
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ow real storage usage for data and hiperspaces as part of
"active frames WSET" but not as part of "frame occupancy".
There might be other places where RMF tells about data and hiperspace usage.
I'm still kind a RMF newbee.
I assume you now about manual "MVS Programming: Exte
clear from the MODIFY CATALOG,LIST that catalog
is having contention. It is not yet clear whart caused it. Still
investigating
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> Long running LISTCAT and/or EXPORT on catalog (for backup)?
You mean when someone does an ISPF 3.4 specifying a DSN level which will match
a large number of data sets? Good hint.
Question becomes, how to find out now? I guess there is no track left.
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, no I have
not referenced any byte within the new area. I found by looking at the area in
a dump.
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> Are you using z/OS 1.9 rules or z/OS 1.10 rules?
New rules
>How were you able to determine this? LRA perhaps?
Looking at a dump
>Why do you care?
Curiosity.
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esponse, it's pure curiosity.
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>> ask IPCS if the first page is really backed (ip rsmdata virtpage ra(x'page
>> address')) and check the flags in the output.
> He already knows that *his* first page is backed; he's asking if this is
> always the case.
Well, at least I think I know it is backed from what IPCS tells me.
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