Re: IBM(r) z/OS(r) Management Facility (z/OSMF)

2012-05-24 Thread David Andrews
On Thu, 2012-05-24 at 11:51 -0400, Edward Jaffe wrote:
 Lol! z/OSMF security has been a struggle for RACF shops too! :D

MSM had its own set of security demands...

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Re: Screen Scraping TN3270

2012-05-22 Thread David Andrews
 Curious as to what people might be using, if anything, on the JAVA side
 for screen scraping TN3270 applications.

We use the LegaSuite product to GUIfy existing green screen applications
and improve workflow.  There are bells and whistles we don't use,
including something called LegaSuite Integration.  In one of the
manuals I see that Java Connectors provide access to any application
using Java APIs.

So I'll guess that LegaSuite might provide a scraping interface via a
Java API.  That's a solution for which we have no known problem, so best
check with your friendly Rocket rep.

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Re: Screen Scraping TN3270

2012-05-22 Thread David Andrews
On Tue, 2012-05-22 at 16:10 -0400, George Henke wrote:
 I had a client in 2010 that used LegaSuite very successfully, but it was
 not really screen-scraping

Well it is really no-fooling screen scraping here, with all the
attendant change control issues.

 1 click of the mouse button triggered about 10 or 12 CICS
 transactions, tasks, under the covers.

Yes, it can devolve into this if you choose to e.g. present a multipage
screen map as a scrollable list.  We do some of that (but not a lot).

 Quite a price to pay just so customer service does not have to touch
 type.

Perhaps.  But usability has some value, and some of our green screens
are complex.  The ability to present some coded fields as pull-downs and
integrate with the desktop (SQL-server queries, mail, other stuff) has
been well received.

 Screen-scaping is taboo where I am now.

Keeping the green-screen maps in sync with the LegaSuite panel
collection is an administrative problem that we haven't solved yet.

Error recovery seems to be much less of an issue than it was in days of
yore.  I once wrote a EHLLAPI library subset for a boutique 3270
emulator board, and dealing with a recalcitrant SPX line that stretched
halfway across the country was a painful exercise.

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Re: ### of GDG Entries

2012-05-11 Thread David Andrews
On Fri, 2012-05-11 at 11:43 -0400, Shmuel Metz (Seymour J.) wrote:
 In 9a5727782f43d643b484c4d0dca637a303610...@dfle30.ent.ti.com, on
 05/10/2012
at 08:12 PM, Donnelly, John john.p.donne...@ti.com said:
 
 Is there any way to create or pretend to create a GDG base greater
 than 255...
 
 No. Has anybody submitted a requirement for that? It should be doable,
 but there would have to be a sound business case for it; it wouldn't
 be trivial.

I thought about this a bit during the afternoon, and based on what I
remember of ICF catalog structure for GDGs, this would be a bear.

(What I remember is over 20 years old, so take this with 20 years worth
of NaCl.)

A GDG's catalog information is entirely kept within a single GDG sphere
record, so long as all the data will fit within your catalog's LRECL.
If the sphere record would exceed the LRECL, then extension records are
created, one at a time per GDS.

The key for nonvsam entries (including GDG sphere records) is 45 bytes
long - base name followed by a binary zero.  GDG extension records are
keyed by base name and one-byte binary integers starting at X'01'.  It
follows that you cannot have more than 254 extension records.

So expanding the max number of generations much past 255 is problematic
with the current key design.  I guess IBM could walk in a new catalog
format (by e.g. allowing more than one GDS per extension record), but I
wouldn't look forward to all the coexistence woe that might provoke.

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Re: Old blank tape cartridges

2012-05-07 Thread David Andrews
On Sun, 2012-05-06 at 16:17 -0400, Linda Mooney wrote:
 Many jurisidctions have, in the last few years, made putting tapes
 into the trash illegal.  It is that way where I am.

A couple of years ago I tried hard to find a recycler for my ancient
3480 library.  I came up empty-handed, and when I rang up my local
(central Florida) waste management authority the nice lady told me to
simply dump 'em.  I was astonished and asked her to confirm, which she
did.  Weird.

 When we dispose of old tape we have to send it to an eWaste company.

Can you name the company?

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Re: ServerPac RACF* jobs (rant)

2012-04-30 Thread David Andrews
On Mon, 2012-04-30 at 16:01 -0400, Walt Farrell wrote:
 If no one complains to them, they won't know anyone has a problem.

John Eells told me two years ago that he would be frightened to learn
that installations were using those RACF* jobs as-is.  Since he wasn't
doing ServerPac anymore, he passed on my comments to Lucy Miller, who
said ServerPac provides these [optional] jobs for folks to use as
samples if they want to just upgrade their RACF database because it is
very large and they don't want to risk rebuilding it or if they are
using non-RACF security products.  Lucy emphasized that I review all
the warnings documented in the Installing Your Order book for all the
RACF jobs and especially for RACFDRV.

Still a big pain, but John reminded me that RACF isn't the only security
system out there.  It would be much harder for us to understand ACF2
and TopSecret environments and create appropriate definitions for them
he explained.

I understand their problems, so I think I'd settle for a set of diffs
between current RACF* jobs and those of yore.  If IBM would tell me what
recommendations/requirements have changed since my last ServerPac, that
would ease my workload.  (Or maybe a changelog -does- exist, and I
haven't noticed it?)

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Re: Strip column 1 from reports

2012-04-24 Thread David Andrews
On Tue, 2012-04-24 at 10:01 -0400, Elardus Engelbrecht wrote:
 Is there a way to strip column 1 from reports, SYSOUT, output from
 ICETOOL, RACFRW, etc?

I think I understand your requirement, but don't have a solution.
Sorry!  But may I comment on your assertion?

 As it is now, the method of specifying the ISO/ANSI/FIPS control
 characters (' ', '0', '-', '+', '1') [1] is not really used much these
 days.

We use ANSI carriage control for everything, always have, and never
bought into IPDS.  VPS (and I guess MacKinney) makes it pretty easy to
conditionally pre-pend printer controls to your datastream in an
application-independent way, which satisfies most of our form-and-flash
requirements.

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Re: GO TO cobol

2012-04-23 Thread David Andrews
On Sat, 2012-04-21 at 16:40 -0400, Edward Jaffe wrote:
 The behavior of well-defined coding structures like IF/THEN/ELSE, DO, SELECT, 
 CASE, etc. are extremely well understood--both by programmers and by code 
 optimizers no matter which language is being employed.

Hmm.  I wonder if the COBOL compiler generates equivalent code for:
GO TO ... DEPENDING ON X
(which I've always understood was a simple branch table) and:
EVALUATE X
WHEN 1 ...
WHEN 2 ...

Hey John, there's a research topic for you in your copious spare time!

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Re: GO TO cobol

2012-04-16 Thread David Andrews
On Mon, 2012-04-16 at 09:52 -0400, Joel C. Ewing wrote:
 One proposal many 
 years ago to totally eliminate the FORTRAN GO TO was to replace it 
 with a COME FROM statement.

Ah yes, an old chestnut: http://www.fortran.com/come_from.html

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Re: GO TO cobol

2012-04-16 Thread David Andrews
On Mon, 2012-04-16 at 11:08 -0400, McKown, John wrote:
 Ah, imagine the joys of writing CICS code in LISP (Lots of Insipid,
 Silly Parentheses).

There are more parentheses in Java code than equivalent Clojure.  Just
sayin'.

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Re: Modernizing the BCP code ?

2012-04-12 Thread David Andrews
On Thu, 2012-04-12 at 12:49 -0400, David Crayford wrote:
 Also at Share I heard that COBOL will indeed share the same back-end and 
 have all the nice optimizations in future releases of z/OS. They said 
 that they are going to share the Java optimizer technology

That would surprise me, since Java performance relies on a JIT compiler.
Very different framework.

There are specific optimizations employed by the JVM that could be
adopted by other backends - for example its JIT has specific interior
knowledge of z196 and z114 processors, for which it generates machine
dependent out-of-order instruction sequences.

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Re: Modernizing the BCP code ?

2012-04-12 Thread David Andrews
On Thu, 2012-04-12 at 12:45 -0400, McKown, John wrote:
 I am constantly amazed at the amount of code generate by a simpe:
 
  ADD +1 TO WS-INTEGER.
 
 when WS-INTEGER is defined as PIC S9(9) BINARY

Try defining it as COMP-5 (or compile with TRUNC(BIN)) and see if that
improves the generated code?

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Re: A stupid idea? Using twitter like service for z/SO, et al., event notification.

2012-03-09 Thread David Andrews
On Fri, 2012-03-09 at 11:29 -0500, McKown, John wrote:
 notification of events happening on servers, especially z/OS

We're small like you, lights-out after 9:00pm, and the operations
automation we have is all homebrew.

I have a console monitor application, written in REXX, that watches for
specific messages such as ABENDs.  It also watches for messages with
MDBGHOLD=YES that remain un-DOMed for longer than a set period.  Normal
action is to send email via Lionel's XMITIP, and then to escalate to
another email address if the first recipient doesn't acknowledge (by
simply hitting 'reply' on their email client) within ten minutes.

We have another application which runs as a final step of most of our
production jobs, and emails the responsible programmer(s) in the event
of ABEND or untoward return codes.  An MPF exit backs up that
application in case the failed job had a JCL error or otherwise could
not continue to the last step.

A third application analyzes our IDMS transaction log and filters for
unusual activity, emailing some of us who care about that sort of thing.

Automated email works great, mostly, and can include more diagnostic
information than a tweet (say) can include.  When email doesn't work -
and it isn't foolproof - we rely on our users to call.  Press 1 to wake
somebody up.

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Re: WLM Capping

2012-02-07 Thread David Andrews
On Tue, 2012-02-07 at 15:51 -0500, Gibney, Dave wrote:
 I don't want to imagine what WLM stomping on the brakes looks like in
 your shop.

Biggest hassle for me when I started softcapping was that most of my
batch had been discretionary - I always liked the MTTW algorithm.  But
when we softcapped all that discretionary workload went to the meat
locker, and we couldn't have that.  Had to do some triage and creative
stuff with velocity goals and performance periods to make things right
again.

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Re: Regular Expressions (OMVS)

2012-02-06 Thread David Andrews
On Mon, 2012-02-06 at 12:05 -0500, McKown, John wrote:
 IMO, IBM would have done much better by all to start with Linux as a
 base and do whatever was needed to get it POSIX compliant and
 certified.  But, IBM tends to have NIH real bad.

I recall that Unix-branding was important to IBM, while Linus never felt
the need for it.

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Lots of *MASTER* CPU during a big sort

2012-01-25 Thread David Andrews
I glanced at the SDSF 'DA' frame this morning and noticed one of our
applications programmers was sorting a large file - something like
400,000 tracks.  The system was otherwise lightly loaded and SDSF was
reporting 2M real storage frames in use by his job.

But what also caught my eye was unusually large CPU consumption by the
*MASTER* address space: 60-75% continuously while his sort was
executing.  He cancelled it, and *MASTER* went back to its usual docile
self.

What is a large DFSort with 2M+ real storage doing to consume that much
time in *MASTER*?  Is this a characteristic of memory objects?

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Re: Set Clock Command

2012-01-23 Thread David Andrews
On Mon, 2012-01-23 at 12:14 -0500, Skip Robinson wrote:
 I'm curious. We have not done 'SET CLOCK' for 15 years since we acquired 
 sysplex timers and now have STP. Time changes are automatic/programmed. Is 
 the reason for using manual processes strictly financial?

It's certainly money here.  During weekly sysmaint the system is
quiesced and we run a program by Axel Miller that interrogates a NTP
server and issues appropriate SET CLOCK commands to sync local time to
network time.

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Re: Set Clock Command

2012-01-23 Thread David Andrews
On Mon, 2012-01-23 at 16:07 -0500, Paul Gilmartin wrote:
 And the TOD just drifts?

Yeppers.  It's not remotely as bad as it was in (say) the pre-CMOS days.
The clock doesn't move far enough from wall clock to be very noticeable.

 How does this affect critical timestamps
 kept in GMT?  What do z/OS UNIX utilities (FTP?) show?

GMT will drift with the seasons of course, but...

 May I assume you don't have a sysplex which requires extremely
 precise synching of the TODs?

You presume correctly.  We're just a tiny shop, what a pal of mine used
to call family data processing.  Heck, I'm still running monoplex
(though those pesky ZFS and PDSE datasets will eventually force me to do
something about that).

 Or with the system quiesced, do you actually issue an SCK instruction.
 (It's not Shmuel's dog.?)

Ohno.  But it was only fairly recently that IDMS learned about CVTLDTO.
IDMS's idea of local time varied from z/OS's idea.  That was a small
nuisance.

 Is the hardware used by STP well enough documented in the PoOp
 (PrOp?) that one could write RYO (E)TOD steering code, driven by NTP?

I thought that STP was LIC, and contained some enabling bits?

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Re: deleting jes2 printers

2012-01-04 Thread David Andrews
On Wed, 2012-01-04 at 11:39 -0500, Tim Brown wrote:
 Is there a $del to delete jes2 printers

http://publibz.boulder.ibm.com/epubs/pdf/has2a2a0.pdf

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Re: TSO concern - sysplex multisystem logon.

2011-12-21 Thread David Andrews
On Wed, 2011-12-21 at 11:06 -0500, McKown, John wrote:
 allow certain people the ability to logon to TSO on all systems
 concurrently. It appears this is possible, for all users, simply by
 not propagating the SYSIKJUA enqueue via the GRSRNL.

The SYSIKJUA RNAME appears to be the TSO userid:

11.24.59   d grs,res=(sysikjua,*)  
11.24.59   ISG343I 11.24.59 GRS STATUS 499 
S=SYSTEM  SYSIKJUA DBA 
SYSNAMEJOBNAME ASID TCBADDR   EXC/SHRSTATUS
PROD 0038   008FFB00 EXCLUSIVEOWN  

So could you specify your own (and other privileged ones) RNAME as an
RNL exclude?

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Re: Determining MSUs

2011-12-09 Thread David Andrews
On Fri, 2011-12-09 at 14:35 -0500, Phil Smith wrote:
 So if a customer doesn't know the MSU capacity of an LPAR, what's the
 easiest way to find out?

RMF Monitor III, option 1.3?  (Overview - CPC)

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Re: JCL sheesh! for today

2011-12-08 Thread David Andrews
On Thu, 2011-12-08 at 04:24 -0500, Ken Brick wrote:
 At that time (1960's) I doubt that the developers had the 
 rigourous documentation requirements of even yesteryear much less 
 recent years.

Some of the PLMs of the time were quite useful.  When the HIPO fad was
mandated circa 1974 the PLMs lost much of their usability.

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Re: SPOOL move

2011-10-09 Thread David Andrews
On Fri, 2011-10-07 at 18:07 -0400, Linda Mooney wrote:
 If the old vols are draining and you run an offload, type=transmit

I run offloads regularly and reload when I have to.  That's a bit
problematic here because jobs can be processed by a daily offload -
Monday is $OFF1, Tuesday is $OFF2, etc - only once.  So I keep $OFF7 and
$OFF8 in reserve, using them sparingly.

Because I've got years of spool data kept by certain Very Important
Persons, it's a hassle when I absolutely have to
offload/coldstart/reload the entire spool because -something- is going
to fail to offload.  I haven't had to do that for some years, probably
since the last DASD geometry change.

Yeah, I'm looking forward to that new spool migration function in R13.

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Re: Fairwell to a Friend

2011-10-09 Thread David Andrews
Ohno!  Gilbert was, as everyone has already pointed out, a class act.
Knowledgeable, generous, polite.  He left the world better than he found
it.

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Re: SPOOL move

2011-10-07 Thread David Andrews
On Fri, 2011-10-07 at 10:10 -0400, R.S. wrote:
 I have to move JES2 SPOOL volumes from one control unit to another 
 (another dasd box). [...] Q: Is there any method to move spool volumes

I believe there's support for migration between spool volumes in R13.
The miscreants in my shop keep stuff on the spool for *years*, making it
impossible for me to completely drain spool volumes without an outage.
Looking forward to trying out the new function.

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Re: 1TB EAV Support

2011-10-07 Thread David Andrews
On Fri, 2011-10-07 at 10:11 -0400, John Eells wrote:
 See Topic 3.1, What is the Customized Offerings Driver?, at:
 http://publibz.boulder.ibm.com/cgi-bin/bookmgr_OS390/BOOKS/e0z2b1c0/3.1?SHELF=EZ2ZO213DT=20110615113655

John, is the COD usable as a rescue system?  (Yeah, I see that it
takes two hours simply to restore from DVD.  But it might give me a warm
feeling just to have a current DVD in a vault somewhere.)

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Re: 1TB EAV Support

2011-10-07 Thread David Andrews
On Fri, 2011-10-07 at 12:53 -0400, John Eells wrote:
 We support the COD's use only for installing z/OS ... safer--and not
 very much overhead after you have done it the first time--to create a
 rescue system of your own.  I believe someone on the list (Mark
 Zelden?) ... 2 hours *per DVD.*

All three points understood, and Mark's onepack is indeed useful.  I
just thought the COD might be a warm fuzzy to stick in with the IOCP.
Thanks.

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Re: SPOOL move

2011-10-07 Thread David Andrews
On Fri, 2011-10-07 at 16:07 -0400, Rick Fochtman wrote:
 Dave, I submit that those miscreants using SPOOL for long-term storage 
 should have their hands slapped. Hard.

I don't disagree, but I've fought that battle and can show you the
scars.  Bigger dogs than I want to use the spool for long-term storage
and I know a large-calibre warning shot when I see one.

I MAKE the rules... I BREAK the rules.

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Re: CPU utilization/engine

2011-10-04 Thread David Andrews
On Tue, 2011-10-04 at 12:40 -0400, Ed Gould wrote:
 What should have been asked is Why.

Sorry, why is none of our concern.  It is sufficient that Miklos wants
to know.

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Re: UNIX (USS)

2011-08-18 Thread David Andrews
On Thu, 2011-08-18 at 06:58 -0400, John McKown wrote:
 QWS3270 runs under WINE. I wonder if Tom's software would too.

Vista did work when I tried it a couple of years ago.  IIRC there were
some font issues - which may well have been due to an ID10T error.

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Re: assembler help!

2011-08-04 Thread David Andrews
On Thu, 2011-08-04 at 10:20 -0400, Crabtree, Anne D wrote:
 If anyone is using IEFACTRT to do chargeback and is using multiple
 SMF30 cpu type fields in the calculation(ie. SMF30ICU, SMF30IIP,
 SMF30_TIME_ON_IFA, etc...)  I'd love to see how you did it.  The
 production version only looks at SMF30CPT for job cpu time and I need
 to add in all the other CPU fields!

The halfword SMF30TFL contains bits that indicate which of the CPU
fields contain valid data and which do not.

If the high order bit of SMF30TFL is off (i.e. SMF30TFL is non-negative)
then all fields are valid.  Otherwise, you'll have to examine each bit
in SMF30TFL before you add corresponding selected CPU fields.

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Re: running Assembler I/O macro code as AMODE 31, RMODE ANY

2011-07-22 Thread David Andrews
On Tue, 2011-07-19 at 08:30 -0400, Mark Jacobs wrote:
 Sounds almost thiotimoline like to me.

Tells you something about a group of people when one guy mentions
thiotimoline and nobody bats an eyelash.   ;-)

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Who?

2011-07-22 Thread David Andrews
So I'm riffling the SHARE Orlando agenda and I find *this* guy:

Dave Andrews is the IBM Development Director
of the CICS product family based in Hursley, UK.

My reputation can only improve.

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Re: Perl (was: Making Z/OS easier - Effectively replacing JCL with Unix like commands)

2011-07-21 Thread David Andrews
On Thu, 2011-07-21 at 10:12 -0400, Lloyd Fuller wrote:
 /VERSYSB/usr/lpp/perl/lib/5.8.7/

As does our 1.10 system.  But my Linux desktop is running 5.12.3 and Gil
did say no current Perl.

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Re: Perl (was: Making Z/OS easier - Effectively replacing JCL with Unix like commands)

2011-07-21 Thread David Andrews
On Thu, 2011-07-21 at 11:02 -0400, Paul Gilmartin wrote:
 (And David A. attributed to me a statement where I was merely quoting Shmuel.

Erk.  My bad, as the kids say.

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Re: Quick question

2011-06-30 Thread David Andrews
On Thu, 2011-06-30 at 09:44 -0400, Alvaro Guirao Lopez wrote:
 There is any program for delay a job execution in the serverpac of z/OS
 V1R11?

Perhaps you're looking for something like this?

//DELAY   EXEC PGM=BPXBATCH,PARM='pgm /bin/sleep SECONDS'

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Re: how to backup data onto mainframe tape and restored read on windows ?

2011-06-22 Thread David Andrews
The z/OS ftp server will support SITE UNIT=[tape device].  Take your
backup using ftp, then restore it via a MS-Windows client.

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Re: more on startio...

2011-06-20 Thread David Andrews
I remember - maybe - that Bill Fairchild had a SHARE presentation or two
on the care and feeding of STARTIO.  That was years ago.  Bill?

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Re: retraction ...

2011-06-10 Thread David Andrews
On Fri, 2011-06-10 at 14:32 -0400, Ed Gould wrote:
 CA in general is at best mediocre (excepting) CA 1.

I get great support from the IDMS folks, and I imagine there are lots of
other teams within CA that are similarly competent.  CA is a big place,
just as IBM is, with different teams, sensibilities, management.  Sure
you'll find some losers, but there are lots of winners too.

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Re: CPU utilization/forecasting

2011-04-18 Thread David Andrews
On Fri, 2011-04-15 at 16:57 -0400, Ward, Mike S wrote:
 Hello all, can someone tell me if it's better to use CPU peak or CPU
 average to project growth.

Once upon a time I found it useful to condense a month's worth of RMF
data into a single graph showing the average CPU utilization over the
course of a day, plus-or-minus one standard deviation.  That drop-bar
chart made it easy to visualize two-thirds of our daily workload at a
glance.

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Re: ASSIST assembler language

2011-03-17 Thread David Andrews
On Thu, 2011-03-17 at 15:06 -0400, McKown, John wrote:
 The old ASSIST assembler that I used back in college

I remember a cohort trying ASSIST exactly once when I was an undergrad.
He pushed through a utility that contained an SVC 13, which failed
with a privileged op exception.  Rolling our eyes, we binned the
ASSIST JCL and never used it again.

 Does anybody know of any product which uses the @ sign as the leading
 character for its macros?

IDMS is one.

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Re: ASSIST assembler language

2011-03-17 Thread David Andrews
Replying to my own posts again.  Bad form, I know.

On Thu, 2011-03-17 at 16:20 -0400, David Andrews wrote:
 He pushed through a utility that contained an SVC 13

Finger check: that should have been SVC 3.  (Guess I don't blame
ASSIST for not knowing about it, but privileged?)

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Re: Does ROUND dataset allocation mean cylinder boundary?

2011-02-22 Thread David Andrews
On Tue, 2011-02-22 at 11:06 -0500, Bill Fairchild wrote:
 One purpose of ROUND was to reduce DASD revolutions that did not
 transfer any data.

According to my fading memory, Back In The Day a limited set file mask
had to be imposed on CCW strings against non-cylinder-aligned extents.
Hence those unappetizing standalone seeks.

Define Extent was a goodness.

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Re: Redisc overing WW II's femal e 'com pute rs'þ

2011-02-10 Thread David Andrews
On Thu, 2011-02-10 at 16:23 -0500, Linda Mooney wrote:
 I don't know if DPMA stills exists.

Wikipedia says it does, but that it renamed itself in 1996.  See the
Association of Information Technology Professionals website at:
http://www.aitp.org/

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Re: LINKLIB in use / Darwin

2011-02-04 Thread David Andrews
On Fri, 2011-02-04 at 11:02 -0500, Arthur Gutowski wrote:
 Tom M. once told me a story about the DD DUMMY of the Day/Week/Year 
 awards at a past shop.  I think there was a plaque or a trophy that went 
 along with it...

We have a trophy that gets passed around, and which the recipient is
required to prominently display in his office until someone else
deserves it.  An eagle bears a target on its wings, and the placard
below reads: Nice shooting Tex

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Re: Does R OUND datas et allocat ion mean c ylinder bo undary?‏

2011-02-02 Thread David Andrews
On Wed, 2011-02-02 at 08:31 -0500, john gilmore wrote:
 Old men and women in this business thus found themselves repeating the
 litany comma, comma, comma, round  over and over again to the young

Um... comma, comma, contig, comma, round?

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Re: Does ROUND dataset allocation mean cylinder boundary?

2011-02-02 Thread David Andrews
On Wed, 2011-02-02 at 13:20 -0500, john gilmore wrote:
 | Um... comma, comma, contig, round
 which appears to be a polite attempted correction of the litany I provided.

No, you simply reminded me of a relic of the past that I can *still*
find in my proclibs.  As you say, it is another problem.

(I would not lightly dare to correct you.)

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Re: z/OS Virus Checker zLinux Virus Checker

2011-01-31 Thread David Andrews
On Mon, 2011-01-31 at 14:22 -0500, Sam Siegel wrote:
 Hercules and pirated copies of zOS

Do you have evidence of this?

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Re: Long-running jobs, PDS, and DISP=SHR

2011-01-25 Thread David Andrews
On Tue, 2011-01-25 at 08:09 -0500, Bob Shannon wrote:
 I believe that concurrent updates to a PDS result in an S213-30 abend.

A very long time ago this was because OPEN unconditionally enqueued
against SYSZDSCB (RNAME=volser||A||dsn).  The operating system has
been renamed three times since then.

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Re: GDG Question

2011-01-18 Thread David Andrews
On Tue, 2011-01-18 at 13:27 -0500, Tom Marchant wrote:
 If GDG.DSNAME(0) is GDG.DSNAME.G0001V00, then GDG.DSNAME(+1)
 will be GDG.DSNAME.G0002V00 for any reference in that job.

The GDG name table (GDGNT, mapped by IEFZB429, pointed to from the JCT)
contains a list of GDG base names, and their base (+0) generation
numbers.  It is this static table that resolves relative generation
numbers in JCL.

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AUTOTUNING usable?

2011-01-04 Thread David Andrews
I was cleaning house today, and found an entry I'd put in my IPL
automation a long time ago:
F CATALOG,DISABLE(AUTOTUNING)
which advice was provided by OA20748 at the time.  I decided to look
around to see if AUTOTUNING has been fixed yet, and found OA25072, which
is CLOSED and says in part:
various shortcomings have been identified with the
implementation of catalog auto-tuning.  This APAR
will address those issues.

Has OA25072 (corresponding to UA49253-UA49256) in fact corrected
AUTOTUNING?  Or should I keep AUTOTUNING disabled for another timeless
interval?

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Re: [AD] CA Technologies Delivers Ground-Breaking CA Mainframe Chorus

2010-12-08 Thread David Andrews
On Wed, 2010-12-08 at 09:26 -0500, Darth Keller wrote:
 However, I did not see that response on the listserv

I believe it was posted to ims-l.

 I also do not like receiving ad's through the listserv

I've complained to the poster, copy to Darren.  Others who want to
follow up should probably do the same.

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Re: Philosophy: curiousity question

2010-12-06 Thread David Andrews
On Sat, 2010-12-04 at 13:37 -0500, Ted MacNEIL wrote:
 How do we read the IPL instructions when/if the mainframe was down?

What Ted said.  A few weeks ago we did some major electrical work in the
machine room and had to go dark for an hour.  When the kids activated
their ESX farm one of the virtual servers needed for DNS was being
recalcitrant, something to do with their whizbang Active Directory...
and they weren't able to investigate it because they didn't have a
external copy of the server farm's IP addresses.  Um... the IP
addresses are documented on the wiki.  Whoops.

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Re: spool to spool output transfer

2010-11-30 Thread David Andrews
On Tue, 2010-11-30 at 13:09 -0500, Jousma, David wrote:
 Looking for ideas for doing spool to spool transfer of output NOT using
 NJE.

Maybe Sine Nomine's NJE/IP Bridge package would be useful here?
http://www.sinenomine.net/products/vm/njeip

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Re: Relayng all WTORs to my cell phone via SMS

2010-11-24 Thread David Andrews
On Wed, 2010-11-24 at 05:09 -0500, McKown, John wrote:
 it appears that I need to trap every z/OS message and look at each one
 individually. Yuck! This is not CPU efficient.

I have a console monitor written in REXX that runs 'round the clock, and
which has used 600 CPU seconds in the last 17 days (my last IPL).  I
know you're CPU-constrained, but five minutes of CPU spread over two
weeks doesn't break the bank here.

In REXX it's easy to screen all console traffic and watch for e.g.
messages with MDBGHOLD set - nondeletable messages.

GETMSG_RC = GETMSG('CONSMSG.'WAIT_TIME)
IF GETMSG_RC  4 THEN DO /* GETMSG ERROR, SNO */
  SAY 'GETMSG return code =' GETMSG_RC
  EXIT GETMSG_RC 
END
IF GETMSG_RC = 4 THEN DO /* PROBABLE TIMEOUT */
  ITERATE
END
IF CONSMSG.0  0 THEN DO
  ... parse CONSMSG.nn for message content, or
  IF (CONSMSG.MDBGHOLD = 'YES') THEN DO
  ...
  END
END
ELSE DO
  ... no message text means this might be a DOM
  IF CONSMSG.MDBGDOM = YES THEN DO
... handle deleted messages

 What do I want to accomplish? We run with no people other than on
 call people on the weekends and holidays.

We too.  I watch mostly for nondeletable console messages and parse
message lines for exceptions (IDMS has an open WTOR all day long for
example) so we don't get bugged about routine stuff.  I got fancy and
implemented an escalation schedule - a list of people are paged one at a
time, at intervals - until the trigger message is DOM-ed or one of the
paged individuals hit 'reply' on their blackberries.

Lionel's XMITIP is the cat's meow, BTW.

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Re: Mainframe hacking?

2010-10-14 Thread David Andrews
On Wed, 2010-10-13 at 18:38 -0400, Rick Fochtman wrote:
 I ALWAYS left the IBMUSER active on the system but the first thing I 
 also did was to change to password to some very obscure value.

A *very* long time ago, before a few ibm-mainers were born, there was an
early public-access packet switching network named Telenet.  You could
point your modem at a local phone number, type in the five-or-six digit
number of a Telenet subscriber, and be connected to their system
wherever it may be.

You could stay up all night typing in random subscriber IDs to see what
you would get.  It didn't take long to discover that the first three
digits of a subscriber ID was the telephone area code of the subscriber.
That cut down on the search space quite a bit.  Area code 212 (New York
City) was a target-rich environment!

There were a fair number of TSO systems that were Telenet-attached, and
some of those had IBMUSER accounts with default or stupid passwords.

(That particular complacency wasn't limited to MVS administrators.
There were other systems, foreign to me, which permitted easy access.)

No, I never stayed long; got the heck OUT of there in fact.  Login...
holy $#!+... logoff.  What were they thinking?

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Re: obtaining su/sec in real time

2010-10-05 Thread David Andrews
On Tue, 2010-10-05 at 07:46 -0400, Bob wrote:
 Mark Zeldon's IPLSINFO 
 (http://home.flash.net/~mzelden/mvsfiles/iplinfo.txt)

Zelden.  And thanks for this pointer.

Mark, this is a pretty snazzy little exec.  Among other things, it's
taught me where to find that 4HRA.  Nicely done.

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Re: Mainframe ids

2010-10-05 Thread David Andrews
On Tue, 2010-10-05 at 10:59 -0400, SUBSCRIBE IBM-MAIN Joe H. Smith
wrote:
 we providing MAINFRAME ID's for FREE!!!

Joe H. Smith doesn't say whom he represents.  The IP address he offers
belongs to an Indian ISP:

role: TATA Communications
nic-hdl:  TC651-AP
address:  6th Floor, LVSB, VSNL
address:  Kashinath Dhuru marg, Prabhadevi
address:  Dadar(W), Mumbai 400028
phone:+91-22-56633503
fax-no:   +91-22-24320132
country:  IN

Point your web browser to that IP address and you receive a message that
says This site is running TeamViewer.  TeamViewer is a remote desktop
control application.

Careful with this.

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Re: Really dumb IPL question

2010-09-27 Thread David Andrews
On Mon, 2010-09-27 at 10:01 -0400, Charles Mills wrote:
 TCP/IP is a prerequisite but the product can wait for TCP/IP, so it makes
 sense to start it after starting TCP/IP but it does not matter if TCP/IP is
 not fully initialized.

Perhaps TCPIP autolog would do the trick as well?  Does your product run
all the time?

http://publib.boulder.ibm.com/infocenter/zos/v1r9/index.jsp?topic=/com.ibm.zos.r9.halz001/autolog.htm

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Re: Access z/OS 3270 TSO from smartphone?

2010-09-23 Thread David Andrews
On Wed, 2010-09-22 at 22:51 -0400, Mike Schwab wrote:
 http://www.hercules-390.org/hercfaq.html
 In Section 3.01, Paragraph 4 of 6:
 
 [...] The prize for the world's smallest mainframe probably goes to
 Ivan Warren, who claims to have run VM/370 under Hercules on an iPAQ
 5450 handheld PDA.

Time marches on!  As I've mentioned here before, I've IPLed Volker
Bandke's Tur(n)key MVS system on my N900.

5450 dimensions: 5.23 x 3.3 x .63   7.23 oz.
N900 dimensions: 4.37 x 2.35 x .77  6.38 oz.

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Re: JES2 vs. JES3

2010-09-08 Thread David Andrews
On Wed, 2010-09-08 at 14:11 -0400, Steve Comstock wrote:
   Nobody morphed HASP into ASP or vice versa.
  Huh? HASP was the efforts of NASA Houston  and came out as Half ASP.
  Renamed to Houston ASP.
 
 I think that's just a story. I recollect HASP came first,
 out of NASA as you say, and ASP was developed separately
 out in Thousand Oaks, CA.

Notes I took at a SHARE presentation 18 years ago (!) say that the same
people who built ASP built HASP.  NASA was less than enthusiastic over
the prospect of having to spend money on a second box just for spooling,
so the SPOOL program was born, renamed to HASP.

I'd never heard the Half ASP part of the story, but it fits
considering that SPOOL required half the processors of ASP.

See: http://www.redbug.org/dba/sharerpt/share79/o441.html

See also Bill Fairchild's recollection where he mentions Simpson and
Crabtree:
http://www.mail-archive.com/ibm-main@bama.ua.edu/msg09350.html

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Re: Set numbers off permanently.

2010-09-02 Thread David Andrews
On Thu, 2010-09-02 at 07:05 -0400, William H. Blair wrote:
 1983. It also went OCO. That was particularly painful to us at
 the time because we had made mods to SPF (source) that obviously
 could not be carried forward. We had to drop them and completely
 revise our source library management approach.

Yes, I had the same experience.  We'd implemented browse-ddname, and
then used it in our Librarian interface, which extracted source (via
FAIR) into VIO-backed temporary datasets for SPF to browse.  OCO killed
that, and then it was some time before IBM got around to doing their own
browse-ddname.

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Re: Set numbers off permanently.

2010-09-02 Thread David Andrews
On Thu, 2010-09-02 at 08:00 -0400, Chase, John wrote:
 ISTR that PDF (now ISPF option 2) was the full-screen editor; an
 add-on to SPF.

The original Structured Programming Facility (which had nothing to do
with structured programming, a buzzword of the day) became the
Interactive System Productivity Facility, and then was later split into
ISPF-base and ISPF/PDF and priced separately.  I suppose that you could
have licensed *only* ISPF-base if you wanted it to run e.g. Info/Access,
but I never ran into an installation that did that.

Eventually IBM collapsed the products into one again.

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Re: Help with IEWFETCH Error RC0F Reason 40

2010-09-01 Thread David Andrews
On Wed, 2010-09-01 at 12:47 -0400, Lizette Koehler wrote:
 IEW4009I FETCH FAILED FOR MODULE MYLOAD01 FROM DDNAME STEPLIB  BECAUSE
 OF AN I/O ERROR.

Just a SWAG, but when does STEPLIB get opened?  Once by the initiator,
or at every LOAD?  If the former then perhaps your steplib went into
extents after the open?

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Re: Oracle: The future is diskless!

2010-08-13 Thread David Andrews
On Thu, 2010-08-12 at 17:06 -0400, Carlos Bodra - Pessoal wrote:
 Last mainframe will turned off in 1996 hahahahaha

That would be Stewart Alsop, quoted in 1991.  He eats his words on page
2 of Jim Elliott's m/f retrospective:
http://www.vm.ibm.com/devpages/jelliott/pdfs/zhistory.pdf
(How did that photo come to be, Jim?)

 No more than 640KB is necessary for any computer hahahahaha

Gates never said it.  See:
http://www.wired.com/politics/law/news/1997/01/1484
http://en.wikiquote.org/wiki/Bill_Gates

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Re: Who are the TOP Mainframe Tapesubsystems Vendors?

2010-08-07 Thread David Andrews
On Fri, 2010-08-06 at 18:49 -0400, BOB COSBY wrote:
 The VSM is RAID 6 architecture under the covers

Not to quibble (much), but VSM operates a log structured filesystem.
(There are indeed redundant parity tracks, which is the hallmark of RAID
6 devices, but that log structure ameliorates the well known RAID 5/6
write penalty to some extent.)  I wouldn't call it strictly RAID 6.

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Re: Memory v. Storage: What's in a Name? (Was: IBM zEnterprise)

2010-08-03 Thread David Andrews
On Tue, 2010-08-03 at 11:23 -0400, Ted MacNEIL wrote:
 Ever since I started doing Capacity Planning, in 1981,  it was called 
 'Storage'.

Hell, I was still calling it core 'til 1991 - when Ehrman chided me
for it.

(Like Aldo Cella, I am no slave to fashion.)

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Re: share mainframe disk experience

2010-08-03 Thread David Andrews
On Tue, 2010-08-03 at 13:26 -0400, Scott Rowe wrote:
 Any vendor who could not do FlashCopy compatibly would lose out.

That's why we license FDR Instant - which knows about Snapshot /
Flashcopy / Timefinder.  Makes me less married to the underlying tech.

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Re: History of Hard-Coded Offsets - etc

2010-08-02 Thread David Andrews
On Sun, 2010-08-01 at 08:01 -0400, Shmuel Metz (Seymour J.) wrote:
 The 3330 was available on S/360 and was supported by OS/360[1].

Ah, I remember scanning the IOGENs and seeing references to ZEUS, MERLIN
and ICEBERG devices.  The good ol' days.

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Re: Another reason to hate PDSE's

2010-07-26 Thread David Andrews
On Mon, 2010-07-26 at 12:46 -0400, Pinnacle wrote:
 What a crappy design. [...] Brain dead.

I'm inclined to give the PDSE designers a little more credit.  One of
the PDSPAIN White Paper's requirements was not another VSAM - at the
time we were struggling with the filesystem-within-a-filesystem mashup
that was VSAM suballocated space.  Thank FSM they stopped short of that.

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Re: System x and Power 7?

2010-07-22 Thread David Andrews
From the redbook FAQ:

Q: Will the zEnterprise System support for Microsoft
Windows or IBM i OS operating systems?

A: No, Windows or i OS are not supported at this time.
IBM will initially support AIX, Linux on System x (SOD
available 1H 2011) and optimizers through the zBX.
Support for additional operating systems will be
evaluated over time based on demand from our clients.

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Re: System z Security Vulnerabilities

2010-07-19 Thread David Andrews
On Mon, 2010-07-19 at 09:27 -0400, Alan Harrison wrote:
 Please visit my developerWorks blog zSecurity here http://j.mp/aDJp10

... which forwards to:
https://www.ibm.com/developerworks/mydeveloperworks/blogs/zSecurity/entry/documenting_vulnerabilities5?lang=en

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Re: 2 versus 4 processors

2010-07-16 Thread David Andrews
On Fri, 2010-07-16 at 08:49 -0400, Staller, Allan wrote:
 In the old days (circa 197x) the overhead was about 30%. I.E. going from
 one processor to two gave an increase in capacity from 1 to 1.7, not 2.
 Now days, the overhead is more like 90%

Do MSU ratings take this dispatching overhead into account?  Both 2096
models S01 and N02 are rated at 30 MSU for example; does IBM kick in a
few more cycles on multiprocessor boxes to make the MSUs meaningful?

(I imagine that if MSUs are derived from some standard workload test,
then the answer is yes.  If the marketing people mess with MSUs *within*
a single processor line then all bets are off.)

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Re: searchdatacenter.com article

2010-07-01 Thread David Andrews
On Wed, 2010-06-30 at 17:16 -0400, McKown, John wrote:
 Anybody here use IEBCOMPR?

Very occasionally.

In around 2007, I had an archive-to-CD prototype running.  You gave it a
list of MVS datasets and it would offload them to a PC (after converting
to AWS format).  The PC burned a pair of CDs and compared them to make
sure the CDs were readable and that they agreed.  Then the PC submitted
a job back to the MVS system containing the offloaded data; the job
executed a test restore and compared the result with the original
dataset.  Only then was the programmer notified that the offload was
complete and the archive was verified as valid and restorable.

It was written in a combination of REXX on the MVS side and bash script
on the PC side.  Never got past the proof-of-concept stage, 'cause after
it worked my attention was directed elsewhere.  I should probably
resurrect it one day.

Back on topic, I used IEBCOMPR to do the dataset verify.  If all you
want to do is compare entire datasets then IEBCOMPR works rather well.

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Re: IEBCOMPR (was: searchdatacenter.com article)

2010-07-01 Thread David Andrews
On Thu, 2010-07-01 at 09:16 -0400, Paul Gilmartin wrote:
 If the CD id burned from a .iso image, it's possible on either OS X
 or Solaris to read the character special file underlying the mounted
 CD and compare it exactly to the .iso.  On Windows, ImgBurn will
 extract a .iso from a CD; I wouldn't know how to script it.

I used mkisofs and cdrecord under Linux.  The AWS files were compressed
and stored along with companion files that contain the original DCB and
allocation characteristics.  A postgresql index kept track of MVS
datasets and the CD serials.

It was an interesting project, and I learned more about bash than I ever
wanted to.  Last time I touched it I got a wild hair and started to
recode the bash stuff in SBCL Lisp.  Then I thought it would be useful
to have an inotify library and worked on that.  Time ran out on me
before I got the Lisp code running to my satisfaction.

As I said, it was proof-of-concept more than anything else.  Lots of
things I'd do to it: I would have liked to operate a CD changer - write
on one drive, read from another.  I'd have liked a web interface to the
server.  I'd have liked to do encryption.

 Has mkisofs been ported to z/OS?

H, unknown.  In my implementation it was on the CD server.  The bash
script would accumulate datasets until it reached a threshold, then
create the iso.  (But the server could be told to cut the CD regardless
of the current queue size.)

 Which DSORGs will this handle?  PS, of course.  What about PDS,
 PDSE, Program Objects, HFS, zFS, *SDS VSAM?

I only did sequential datasets.

 What AWS utilities do you recommend?

I used AWSSL, which had some limitations three years ago.  I remember
that it didn't handle spanned records, so I always told AWSSL that the
dataset to be offloaded was RECFM=U.  As I mentioned above, when I
transport the AWS dataset it is paired with a characteristics dataset
that contained the real DCB information.

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Re: Disk replacing Tape?

2010-06-22 Thread David Andrews
On Tue, 2010-06-22 at 11:32 -0400, McKown, John wrote:
  WORN = Write once, read never. 
 gee, if really WORN, then I'd suggest writting to DD DUMMY or /dev/null.

Back In The Day, we'd have used STC 8350.

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Re: Multiprise 3k for personal Use?

2010-06-03 Thread David Andrews
On Thu, 2010-06-03 at 11:44 -0400, Tony Harminc wrote:
 Doubtless somewhere a reader of these lists knows that the boss is
 deciding that it's cleanup time for that dusty corner of the
 datacentre

Well, you make me go and look.  There across the parking lot, in an
attic over a farm equipment shop and accessible by forklift, still sits
a bus-and-tag 3088 CTC - plastic wrapped against the elements.

Some people don't throw ANYTHING away.

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Re: ftping a gdg from the z box

2010-05-28 Thread David Andrews
On Thu, 2010-05-27 at 17:53 -0400, larry macioce wrote:
 we are trying to ftp(put) a gdg using the (+1) notation

Try:
put //dd:sysut1 destfilename

//SYSUT1 DD DSN=YOUR.GDS(+1),DISP=(OLD,PASS)

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Re: Significant Bits

2010-05-25 Thread David Andrews
On Tue, 2010-05-25 at 16:10 -0400, Tom Marchant wrote:
 The 68000 and its successors are big endian.
 They switched to PowerPC in 1994 and to i86 in 2006.

Didn't PPC go both ways?  (I vaguely remember a talk by David Barnes a
few years ago, where he mentioned the OS/2 PPC port making use of the
mixed-endian-ness of PPC.)

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Re: IBM to announce new MF's this year

2010-05-24 Thread David Andrews
On Sun, 2010-05-23 at 20:34 -0400, Shmuel Metz (Seymour J.) wrote:
 It was 16 ;-)
 
 At the time, IBM was shipping 2-way[1] MP systems.

When I took the internals class Back In The Day, they told us that
MVS-370 internally supported 16 processors - despite the fact that there
were only dual-processor systems at the time.

I heard a story later, perhaps at a GUIDE, that suggested that one of
the performance tweaks made to MVS/SE was simplification of the
dispatcher.  If there are a max of two processors, I was told, then
we can make processor selection a quick one-or-the-other decision.  I
always wondered if the guy telling me that story was full of it.

(Of course, that tweak wouldn't have lasted long; the 3084 was upon us
only a few years later.)

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Re: IBM to announce new MF's this year

2010-05-24 Thread David Andrews
On Mon, 2010-05-24 at 08:45 -0400, Tom Marchant wrote:
 I thought that the dispatcher always ran on a processor that needs 
 work to do

Well, I presume that there's a check for idle processors whenever a
dispatchable unit is added to the work queue.  That check could be made
shorter if there was only one other processor in the system, maybe even
reduced to a test-and-set followed by SIGP.

Just idle speculation.  As I said, my source wasn't necessarily
credible, and it *was* 30 years ago.

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Re: IBM to announce new MF's this year

2010-05-19 Thread David Andrews
Mainframe operating systems don't scale well past 64 cores in a single
system image

Wonder what made The Register say that?

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Re: ICF Catalog performance options

2010-05-17 Thread David Andrews
 considerations with regard to the following catalog 
 performance options beyond the defaults

Eileen McClintock has done a presentation at SHARE about catalog tuning.
See if you can find it.  She recommended (in 2007), among other things:

- Don't use anything larger than 8K CI size; this has
  adverse index CI effects.
- Don't use VSAM freespace, and don't reorganize your
  catalog; this undoes the benefits of any splits
  that have already occurred.
- Don't let index CI size default; the system almost
  always selects too small a control interval, which
  leads to “dead” data control intervals that can't
  be used in each control area. Allocate your index
  in cylinders, not tracks.
- Shared catalog volumes kill you. Don't have
  multiple catalogs on the same volume. Don't have
  catalogs on shared volumes, period. In the latter
  case every catalog lookup requires a VVR read,
  regardless of whether the entry has been cached.

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Re: ICF Catalog performance options

2010-05-17 Thread David Andrews
On Mon, 2010-05-17 at 15:09 -0400, Mark Zelden wrote:
 I think you are referring to VVDS mode sharing.  If you have the catalog
 in ECS mode, the above isn't true.   
 
 As an aside, it's a little difficult to avoid sharing catalogs between systems
 these days.  :-)

My notes were from a presentation she made in 2007.  I haven't been to
SHARE in awhile, so maybe Eileen has updated it?

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Re: ETR is down (hilarious resolution)

2010-04-30 Thread David Andrews
On Thu, 2010-04-29 at 21:33 -0400, Clark Morris wrote:
 To have an application refuse input because of a special character in
 2010 is archaic

Nothing for it then, but to enter text base64-encoded.  'course, that'll
complicate search queries.

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Re: server pac install and RACFDRV

2010-04-27 Thread David Andrews
On Tue, 2010-04-27 at 10:55 -0400, Hal Merritt wrote:
 As others have posted, the 'best practice' is to simply turn over the
 suggestions to your security folks.

Hrm.  Well, in my place *I'm* the security folks.  (And the systems guy.
And the storage guy.  And the IDMS DBA.)  Dealing the problem to the
RACFDRV Department of the company's Security Division isn't a luxury I
have.

I've spoken with John Eells offline about my use of RACFDRV/RACFTGT, and
probably increased his level of heartburn.  I use his jobs while
remaking the RACF database when I install new releases.

See, I don't do upgrades, but rather full installs, then rerun the
HRF and RACFxxx jobs just before cutover.  That might make some
folks around here shake their heads, but it's a mechanism I understand
and which seems to work in our small-potatoes environment.

'Best practices' is like 'one size fits all'.

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Re: Multiple logon SMCS possibility

2010-04-27 Thread David Andrews
On Tue, 2010-04-27 at 11:32 -0400, Paul Gilmartin wrote:
 That becomes irrelevant (for TSO, at least), when the consoles are virtual
 screens on a single physical device.

Oh... VNC.  Good catch.

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Re: Arithmetic on COBOL usage is pointer

2010-04-19 Thread David Andrews
On Fri, 2010-04-16 at 20:33 -0400, Clark Morris wrote:
 The more interesting question is why use a
 pointer when reference modification works well
 for playing with the SMF30 records?

'splainey?  (That was the first COBOL I'd written in a very long time,
and I was delighted to find pointers at all.  If there's a better way to
handle SMF30 records I'm all ears.)

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Re: Arithmetic on COBOL usage is pointer

2010-04-19 Thread David Andrews
On Mon, 2010-04-19 at 09:06 -0400, McKown, John wrote:
 MOVE LARGEST-INPUT-RECORD (UNSTRING-OFFSET:
LENGTH OF SMF30ID)
  TO SMF30ID

I dig now; you're moving the segments to a separate segment-defining
record in order to gain field addressability.  Using pointers (and
redefines) I'd address that ID segment directly:

01  SMF30-ADDRVAL   COMPPIC 9(8). 
01  SMF30-ADDRPTR   REDEFINES SMF30-ADDRVALPOINTER.
01  SMF30-ID-ADDRVALCOMPPIC 9(8). 
01  SMF30-ID-ADDRPTRREDEFINES SMF30-ID-ADDRVAL POINTER.

IF (SMF30ION = 1) 
COMPUTE SMF30-ID-ADDRVAL =   
SMF30-ADDRVAL + SMF30IOF - 4.
SET ADDRESS OF SMFREC-30-IDENTIFICATION TO
SMF30-ID-ADDRPTR. 

I kinda like my way better, but as others have pointed out it isn't all
that future-proof.  Guess I should fix that if I ever have to crack that
code open again.

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Re: Arithmetic on COBOL usage is pointer

2010-04-16 Thread David Andrews
On Fri, 2010-04-16 at 11:28 -0400, Joe Reichman wrote:
 I redefined a usage pointer to PIC 9(8) comp to do arithmetic

Have you compiled with TRUNC(BIN)?

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Re: Arithmetic on COBOL usage is pointer

2010-04-16 Thread David Andrews
On Fri, 2010-04-16 at 11:43 -0400, Walt Farrell wrote:
 Why would you want to do math on a pointer?

One example: in a COBOL program I wrote awhile ago, I process SMF
type-30 records.  Those records contain segments whose offsets are
stored in fullwords - I address those segments by doing pointer
arithmetic on the address of the SMF30 record.

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Re: Hercules Emulator on window vista

2010-04-06 Thread David Andrews
On Mon, 2010-04-05 at 20:08 -0400, Stephen Y Odo wrote:
 kewl ... how'd you do it [run the Tur(n)key system on N900]?

The N900 runs an embedded Linux (Maemo) on an ARM processor, with
specialized device drivers for a handful of radios (GSM, GPS, BT, WLAN,
what-have-you).  It is unpolished as current smartphones go, but way
wide open.  A hacker's phone.

I started by installing Alan Bruce's Easy Debian, a port of Debian
Lenny that runs in a Maemo chroot.  That was easy, and took a few taps
on the screen.  Hercules, xterm, x3270 and telnet all installed within
Easy Debian via apt-get, again only a few commands.

Volker Bandke's Tur(n)key MVS is distributed in a zip file, which
contains an iso image.  It wasn't possible for me to mount the iso image
directly on the N900 because that kernel hasn't been compiled with loop
block support.  So I was obligated to mount the iso image elsewhere and
then copy the directory structure to the N900 (I used scp for this).

Volker supplies an xstartmvs shell script that fires up Hercules and a
handful of tn3270 sessions.  Those tn3270 sessions are treated as
locally attached 3270s by Hercules, and become consoles and VTAM LUs as
soon as you IPL the MVS volume.  Hercules itself can be controlled via
the xterm you started it in or through a web interface.

 wonder if I can get it running on my Droid?

Don't think so - doesn't Android limit you to the Dalvik JVM?

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Re: Hercules Emulator on window vista

2010-04-05 Thread David Andrews
On Sun, 2010-04-04 at 00:15 -0400, Ravi Kumar wrote:
 Does anyone having experience installing Hercules Emulator on Window Vista?

I *did* install it (along with Volker Bandke's Tur(n)key MVS system) on
my N900 over Easter weekend.  A PL/I hello world compile-link-and-go
job runs in about eleven seconds on that cell phone, and brought back
memories of a 3031 I used to know.

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How to be notified when softcap is set?

2010-03-29 Thread David Andrews
I'm experimenting with LPAR group capping (baby steps).  How am I
notified that the 4h average has exceeded the group cap and softcapping
has begun?  Is there a console message or event or specific SMF record?

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Re: SQL Server replacement

2010-03-25 Thread David Andrews
On Thu, 2010-03-25 at 09:19 -0400, Richards, Robert B. wrote:
 If we were looking to replace Microsoft's SQL Server with something on
 System z, what would my options be and how much effort would be
 required to move it there?

I have no direct experience, so take this with a dumpster load of NaCl,
but PostgreSQL ought to run on Linux-on-z, and I believe there is an
ODBC driver.

If a Linux VM or LPAR is an option for you, you might ask about it over
on linux-390.

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Re: Subpools - specifically 241

2010-03-25 Thread David Andrews
On Thu, 2010-03-25 at 11:26 -0400, Rob Scott wrote:
 IBM used to use Key2 for some purpose years ago

It was used for VSPC, I think.

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Interact, was:Re: Adventure - Or Colossal Cave Adventure

2010-02-25 Thread David Andrews
On Wed, 2010-02-24 at 19:44 -0500, jack.hamil...@kp.org wrote:
 I think there was another commercial 
 version called Interact from Online Business Systems

Yeah, this comes up every couple of years here.  See:
http://www.mail-archive.com/ibm-main@bama.ua.edu/msg45818.html

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Re: Senior Java Developer vs. MVS Systems Programmer (warning: Conley rant)

2010-02-25 Thread David Andrews
On Thu, 2010-02-25 at 15:33 -0500, Ted MacNEIL wrote:
 Creators.
 Kernigan (sp?)
 and Ritchie.

Hrm.  You're thinking KR, the C book.  Ken Thompson originated Unix.

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Re: LPARs: More or Less?

2010-02-23 Thread David Andrews
On Tue, 2010-02-23 at 10:56 -0500, George Henke wrote:
 It is all somewhat reminiscent of the old MFT days when everything ran in
 partitions.  There were all kinds of inefficiencies introduced when we ran
 things in fixed partitions then. [...]

 When MVT came along it removed those constraints

One of you Old Ones (and I'm thinking of Shmuel in particular) correct
me on this, but didn't bare MVT have a horrendous core fragmentation
issue?  My poor recollection is that HASP initiators essentially
reintroduced partitions to MVT to help beat that problem.

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Re: Senior Java Developer vs. MVS Systems Programmer

2010-02-22 Thread David Andrews
On Sat, 2010-02-20 at 10:45 -0500, Gabriel Tully wrote:
 I agree that System z administration is getting easier and I think that 
 is a good thing.

Until something breaks.  We dumb-down the workaday environment, lower
the expectations of management for the technical people, while the ones
with deep knowledge retire or are RIFfed into oblivion.  It doesn't take
much imagination to foresee a time when we will only have enough
expertise to reboot in an emergency -- just like the other MS-Windows
sysadmins.

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