Re: System Symbols Question

[John Gilmore]

Two ampersands represent one ampersand in and only in a single-quote
framed string.

Thus

|//   SET   text= 'Dombey && Son'

sets &text equal to

>Dombey & Son<,

where '>' and '<' delimit but are not of course part of the value of &text here.

The use of SET statements can make some but not all of these problems
tractable, and I suspect that strengthening the concatenation
machinery available for SET statements would solve most such problems.
 The designers of the SET statement would indeed have done better to
just add the HLASM SETC statement to JCL.   Their independent design
is  less than felicitous.

John Gilmore, Ashland, MA 01721 - USA

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Utilization of Crypto CPU

[Elardus Engelbrecht]

Good day

Where can I see how much the Crypto CPU is used? This is for CP Assist for 
Cryptographic Function (Feature 3863) on a zEC12.

Is it possible to see usage per LPAR or per footprint? Can I see how much data 
are transferred to/from that CPU?

Oh, BTW, we can do a TCP/IP packet trace to see the increased bandwith of a 
single SSL connection and compare that with a single Non-SSL connection.

TIA! 

Groete / Greetings
Elardus Engelbrecht

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Re: Utilization of Crypto CPU

[Steve Conway]

RMF provides a Crypto Hardware Activity report.

I'm too lazy to look up the specific option right now, but REPORTS(ALL) 
should give it to you.

Here's our options:
OPTIONS IN EFFECT 
  SYSOUT(A)  -- SYSIN 
  NOEXITS  -- SYSIN 
  NODELTA  -- SYSIN 
  SUMMARY(TOT)  -- SYSIN 
  SUMMARY(INT)  -- SYSIN 
  REPORTS(ALL)  -- SYSIN 
  OVERVIEW(REPORT)  -- SYSIN 
  STOD(,2400)  -- SYSIN 
  RTOD(,2400)  -- SYSIN 
  ETOD(,2400)  -- SYSIN 
  DINTV(0400)  -- SYSIN 

Here's the report:
   C R Y P T O  H A R D W A R E  A 
C T I V I T Y 
  
z/OS V1R13   SYSTEM ID PROD START 
01/27/2014-20.00.00  INTERVAL 003.59.59 
 RPT VERSION V1R13 RMF  END 
01/28/2014-00.00.00  CYCLE 1.000 SECONDS 
 CRYPTOGRAPHIC CCA COPROCESSOR    
    TOTAL   KEY-GEN   
TYPE   ID   RATE  EXEC TIME  UTIL%RATE   
CEX2C   0  <0.010.327 0.0 0.00   
1   0.000.000 0.0 0.00   
2   0.000.000 0.0 0.00   
3   0.000.000 0.0 0.00   
  
 ICSF SERVICES 

 ENCRYPTION - DECRYPTION -- MAC -- 
    HASH --- PIN ---
 SDESTDES AES SDESTDES AESGENERATE  VERIFY 
   SHA-1  SHA-256  SHA-512TRANSLATE   VERIFY
RATE 0.000.000.00 0.000.000.000.000.00 
0.00 0.00 0.00 0.00 0.00
SIZE 0.000.000.00 0.000.000.000.000.00 
0.00 0.00 0.00 
** Bottom of Data 
*


Cheers,,,Steve

Steven F. Conway, CISSP
LA Systems
z/OS Systems Support
Phone: 703.295.1926
steve_con...@ao.uscourts.gov



From:   Elardus Engelbrecht 
To: IBM-MAIN@LISTSERV.UA.EDU
Date:   01/28/2014 08:31 AM
Subject:Utilization of Crypto CPU
Sent by:IBM Mainframe Discussion List 



Good day

Where can I see how much the Crypto CPU is used? This is for CP Assist for 
Cryptographic Function (Feature 3863) on a zEC12.

Is it possible to see usage per LPAR or per footprint? Can I see how much 
data are transferred to/from that CPU?

Oh, BTW, we can do a TCP/IP packet trace to see the increased bandwith of 
a single SSL connection and compare that with a single Non-SSL connection.

TIA! 

Groete / Greetings
Elardus Engelbrecht

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Re: Utilization of Crypto CPU

[Rob Schramm]

Are you just after cex processor or cpacf as well?
On Jan 28, 2014 7:38 AM, "Steve Conway" 
wrote:

> RMF provides a Crypto Hardware Activity report.
>
> I'm too lazy to look up the specific option right now, but REPORTS(ALL)
> should give it to you.
>
> Here's our options:
> OPTIONS IN EFFECT
>   SYSOUT(A)  -- SYSIN
>   NOEXITS  -- SYSIN
>   NODELTA  -- SYSIN
>   SUMMARY(TOT)  -- SYSIN
>   SUMMARY(INT)  -- SYSIN
>   REPORTS(ALL)  -- SYSIN
>   OVERVIEW(REPORT)  -- SYSIN
>   STOD(,2400)  -- SYSIN
>   RTOD(,2400)  -- SYSIN
>   ETOD(,2400)  -- SYSIN
>   DINTV(0400)  -- SYSIN
>
> Here's the report:
>C R Y P T O  H A R D W A R E  A
> C T I V I T Y
>
> z/OS V1R13   SYSTEM ID PROD START
> 01/27/2014-20.00.00  INTERVAL 003.59.59
>  RPT VERSION V1R13 RMF  END
> 01/28/2014-00.00.00  CYCLE 1.000 SECONDS
>  CRYPTOGRAPHIC CCA COPROCESSOR 
> TOTAL   KEY-GEN
> TYPE   ID   RATE  EXEC TIME  UTIL%RATE
> CEX2C   0  <0.010.327 0.0 0.00
> 1   0.000.000 0.0 0.00
> 2   0.000.000 0.0 0.00
> 3   0.000.000 0.0 0.00
>
>  ICSF SERVICES
>
> 
>  ENCRYPTION - DECRYPTION -- MAC --
> HASH --- PIN ---
>  SDESTDES AES SDESTDES AESGENERATE  VERIFY
>SHA-1  SHA-256  SHA-512TRANSLATE   VERIFY
> RATE 0.000.000.00 0.000.000.000.000.00
> 0.00 0.00 0.00 0.00 0.00
> SIZE 0.000.000.00 0.000.000.000.000.00
> 0.00 0.00 0.00
> ** Bottom of Data
> *
>
>
> Cheers,,,Steve
>
> Steven F. Conway, CISSP
> LA Systems
> z/OS Systems Support
> Phone: 703.295.1926
> steve_con...@ao.uscourts.gov
>
>
>
> From:   Elardus Engelbrecht 
> To: IBM-MAIN@LISTSERV.UA.EDU
> Date:   01/28/2014 08:31 AM
> Subject:Utilization of Crypto CPU
> Sent by:IBM Mainframe Discussion List 
>
>
>
> Good day
>
> Where can I see how much the Crypto CPU is used? This is for CP Assist for
> Cryptographic Function (Feature 3863) on a zEC12.
>
> Is it possible to see usage per LPAR or per footprint? Can I see how much
> data are transferred to/from that CPU?
>
> Oh, BTW, we can do a TCP/IP packet trace to see the increased bandwith of
> a single SSL connection and compare that with a single Non-SSL connection.
>
> TIA!
>
> Groete / Greetings
> Elardus Engelbrecht
>
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>
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Re: Utilization of Crypto CPU

[Elardus Engelbrecht]

Rob Schramm wrote:

>Are you just after cex processor or cpacf as well?

Only CPACF.

Steve Conway wrote:
> I'm too lazy to look up the specific option right now, but REPORTS(ALL)

Thanks. But REPORTS(CRYPTO) showed up empty.

I must have missed something. I'm sure we're collecting SMF records 70-2.

Groete / Greetings
Elardus Engelbrecht

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Re: Utilization of Crypto CPU

[Steve Conway]

Elardus, in at least one of the shops I worked, the RMF records were split 
off into a separate GDG for easier file management.  Is that the case in 
your house?


Cheers,,,Steve

Steven F. Conway, CISSP
LA Systems
z/OS Systems Support
Phone: 703.295.1926
steve_con...@ao.uscourts.gov



From:   Elardus Engelbrecht 
To: IBM-MAIN@LISTSERV.UA.EDU
Date:   01/28/2014 08:57 AM
Subject:Re: Utilization of Crypto CPU
Sent by:IBM Mainframe Discussion List 



Rob Schramm wrote:

>Are you just after cex processor or cpacf as well?

Only CPACF.

Steve Conway wrote:
> I'm too lazy to look up the specific option right now, but REPORTS(ALL)

Thanks. But REPORTS(CRYPTO) showed up empty.

I must have missed something. I'm sure we're collecting SMF records 70-2.

Groete / Greetings
Elardus Engelbrecht

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Re: Utilization of Crypto CPU

[Elardus Engelbrecht]

Steve Conway wrote:

>Elardus, in at least one of the shops I worked, the RMF records were split off 
>into a separate GDG for easier file management.  Is that the case in your 
>house?

No, but you gave me a good idea. I will need to look around in my SMF jobs 
summaries just to be sure.

Thanks for asking.

Groete / Greetings
Elardus Engelbrecht

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Re: System Symbols Question

[Staller, Allan]

The semi-colon ';' is invalid in JCL, (always has been). It should have been a 
period. '.' 
Thus  is invalid.


By experiment, what you say is true.  I'm considerably surprised.
So, then, why do I get:

8 //DDFOUR DD   DISP=(,PASS),DSN=FOUR,UNIT=SYSALLDA,SPACE=(1,0) 

 STMT NO. MESSAGE   
8 IEFC627I INCORRECT USE OF AMPERSAND IN THE DSN FIELD 

By JCL rules, two ampersands represent one ampersand, so four ampersands 
represent two ampersands, and "&&FOUR" is a valid temp DSN.



DEAL WITH IT!


I hate JCL!


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Re: With What macros Can the DCB specified by TCBJLB be used for

[Shmuel Metz (Seymour J.)]

In , on 01/27/2014
   at 10:20 AM, Micheal Butz  said:

>I did I used the TCB represented by TESTs LISTTCB TCBJLB

TEST or TESTAUTH? IAC, I suggest that you use IPCS and see what is in
each TCBJLB.
 
-- 
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 ISO position; see  
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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Re: With What macros Can the DCB specified by TCBJLB be used for

[Shmuel Metz (Seymour J.)]

In
,
on 01/26/2014
   at 04:55 PM, MichealButz  said:

>I believe I don't have the right TCB to access TSOLIB I need the TCB
>for IKJEFT01 

I'd be very surprised if the TMP has TSOLIB as its tasklib. It should
be easy enough to see using IPCS.
 
-- 
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 ISO position; see  
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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Re: System Symbols Question

[Shmuel Metz (Seymour J.)]

In
,
on 01/26/2014
   at 05:19 PM, Peter Relson  said:

>That is not a choice that helps the preponderance of cases that exist
> today.

What is the requirement? Is it to provide for longer values in the
service or to exploit longer values in, e.g., JCL, PARMLIB? The former
has utility even if you don't do the latter.
 
-- 
 Shmuel (Seymour J.) Metz, SysProg and JOAT
 ISO position; see  
We don't care. We don't have to care, we're Congress.
(S877: The Shut up and Eat Your spam act of 2003)

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Re: System Symbols Question

[Paul Gilmartin]

On Tue, 28 Jan 2014 08:14:30 -0500, John Gilmore wrote:

>Two ampersands represent one ampersand in and only in a single-quote
>framed string.
> 
Thanks.


>The use of SET statements can make some but not all of these problems
>tractable, and I suspect that strengthening the concatenation
>machinery available for SET statements would solve most such problems.
> The designers of the SET statement would indeed have done better to
>just add the HLASM SETC statement to JCL.   Their independent design
>is  less than felicitous.
> 
The designers of the symbol substitution mechanism circa nine lustra
ago would indeed have done better to have been more consistent:

o Always recognize and substute symbols whether within or without a
  single-quote framed string.

o Always recognize two ampersands as representing a single ampesand
  whether within or without a single-quote framed string.

o Recognize a temporary DSNAME introduced by a single ampersand,
  never two, after symbol substitution and reduction of doubled
  ampersands.

It appears that they were striving for the third point; failed to
recognize that the second is false and collapsed into chaos,
perhaps driven by too much JCL already coded to change.

-- gil

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Re: System Symbols Question

[Paul Gilmartin]

On 2014-01-28, at 07:13, Staller, Allan wrote:

> The semi-colon ';' is invalid in JCL, (always has been). It should have been 
> a period. '.' 
> Thus  is invalid.
>  
Had you read ahead in the thread before replying impulsively,
you would have seen that I spotted the error, not mine but
introduced by LISTSERV, a misbehavior well known to regular
readers of IBM-MAIN et al., and corrected it within a half-hour.

> DEAL WITH IT!
>  
Even John Gilmore was kinder to my thoughts than you.

-- gil

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Re: System Symbols Question

[John Gilmore]

Paul [Gilmartin],

The anomaly that both && and & are recognized
reflects the historical evolution of JCL.  In the beginning was the
word, but single JCL parameter values were not replaceable.  It was
necessary to supply an entire 'overriding'  JCL statement.   The
[only] function of '&'  in this context was to identify a temporary
DSN value.

Then when the facility for overriding single keyword parameter values
was introduced the new convention that && denoted a temporary DSN[ame]
was also introduced.  Understandably but unfortunately,  the
context-sensitive recognition of & was retained to avoid making
much already written JCL obsolete and unusable.

The result is not pretty, but it is more 'defensible' than you suggested.

We have had enough of the characterization of Paul Gilmartin as an
intelligent, recently arrived Martian; but your synchronic view of
things does sometimes jar.

John Gilmore, Ashland, MA 01721 - USA

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Re: System Symbols Question

[Peter Relson]

>"PARM='&WOMBAT_1'" vs "PARM='&WOMBAT._1'"

FWIW, it likely won't simply be the presence of "_"  in the symbol name 
that is the indication of "long value" in part because JES symbols, 
introduced in z/OS 2.1, allow "underscore" as a normal part of the name. 
Underscores within names would likely become a "normal" allowed part of 
symbol names.

Gil's case is (basically) right on target. This is a case that we already 
would intend to point out in the migration information for the release and 
made clear to the ISV's (and provide a simple exec to look through a 
PDS(E) for instances).

There are some other somewhat related factors, such as: we would reject an 
attempt to create a system symbol named "&sym_more" if there is a symbol 
named "&sym".
This restriction makes it possible to say that if you see &WOMBAT_1 then
- if symbol &WOMBAT_1 exists, substitute it for &WOMBAT_1
- otherwise, if symbol &WOMBAT exists, substitute that for &WOMBAT and 
append _1.
since it is known that both cannot be system symbols and thus you cannot 
be substituting with the wrong symbol.

Peter Relson
z/OS Core Technology Design

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IFL z/VM

[JT]

From my manager.
Is it possible to run CICS (executing COBOL application code) on an IFL?

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Re: IFL z/VM

[Itschak Mugzach]

Afaik IFLs are not seen to z/os and z/vm lpars...

ITschak 


On Tue, Jan 28, 2014 at 7:57 PM, JT  wrote:

> From my manager.
> Is it possible to run CICS (executing COBOL application code) on an IFL?
>
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Re: IFL z/VM

[Neil Haley]

IFLs (Integrated Facility for Linux) are for Linux workloads

http://en.wikipedia.org/wiki/Integrated_Facility_for_Linux

Regards,

Neil Haley
nha...@ca.ibm.com
Storage & Software Mainframe Support
http://www.ibm.com/systems/z/ | http://www.about.me/NeilHaley




From:   Itschak Mugzach 
To: IBM-MAIN@listserv.ua.edu,
Date:   01/28/2014 12:59
Subject:Re: IFL z/VM
Sent by:IBM Mainframe Discussion List 



Afaik IFLs are not seen to z/os and z/vm lpars...

ITschak


On Tue, Jan 28, 2014 at 7:57 PM, JT  wrote:

> From my manager.
> Is it possible to run CICS (executing COBOL application code) on an IFL?
>
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Re: IFL z/VM

[Mark Post]

>>> On 1/28/2014 at 12:59 PM, Itschak Mugzach  wrote: 
> Afaik IFLs are not seen to z/os and z/vm lpars...

Not true.  You can _try_ to IPL z/OS in an LPAR with IFLs, but the entire LPAR 
will checkstop as soon as it hits the instruction that's been 
disabled/disallowed on an IFL.  z/VM, on the other hand, works quite nicely on 
either IFLs or CPs.

In fact, with the newer machines and newer z/VM you can define "VM Mode" LPARs 
that contain both CPs and IFLs (and other specialty engines) and use the z/VM 
CP directory to indicate what type of processors a guest should be run on.  
That means you can have your test (or even production) z/OS systems running 
under z/VM right along side Linux, each being dispatched on the appropriate 
processor for that workload.


Mark Post

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Re: IFL z/VM

[Tony Harminc]

On 28 January 2014 12:57, JT  wrote:
> From my manager.
> Is it possible to run CICS (executing COBOL application code) on an IFL?

Short answer: no. The only OSs that IBM supports IPLing on an IFL are
Linux and zVM. But even under either of these, IBM will not license
you a version of CICS that will run on an IFL. Whether you can run
your own COBOL programs on one, I don't know. Probably IBM will not
license the COBOL run time (LE) to run there. You might be able to use
a very old public-domain COBOL compiler, but then it wouldn't talk to
the CICS that you can't run anyway.

So really, no.

Tony H.

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Re: Utilization of Crypto CPU

[Greg Boyd]

Unfortunately, the RMF Crypto Hardware Activity report will be focused on the 
utilization of the crypto cards (the Crypto Express cards), not the CPACF.  The 
CPACF simply provides some additional instructions that perform crypto 
operations (Cipher Message, Compute Message Digest, etc.).  And just as you 
can't break out the CPU utilization of a single Move Character or Shift Logical 
instruction, you can't break out the CPU utilization of these instructions 
either.

That said, starting with the z10 machines we did make the CPU Measurement 
Facility available.  This facility gives you the ability to 'count' 
instructions and that includes many of the crypto instructions.  John Burg has 
done presentations on the use of the Measurement Facility at Share and 
zExpo/zTech University.  You can access at least one version of the 
presentation on the IBM ATS TechDocs website 
(http://www.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/TC05).

I should point out that the Measurement Facility captures data at the LPAR 
level.  In contrast, the RMF Crypto Hardware Activity report is for the entire 
CEC, and thus the entire crypto card.  The point being that you have to be 
careful how you interpret the reports (both of them).

John has experimented with using the data from the counters to calculate the 
CPU consumption of the various instructions.  If nothing else, you should 
probably monitor these counters (at least for the crypto instructions) so you 
can develop trend lines and monitor the use of crypto at that level.

Greg Boyd
IBM Advanced Technical Support
Supporting Crypto on System z

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Re: IFL z/VM

[Mark Post]

>>> On 1/28/2014 at 12:57 PM, JT  wrote: 
> From my manager.
> Is it possible to run CICS (executing COBOL application code) on an IFL?

The U.S. Postal Service migrated a good part of their CICS workload to SUSE 
Linux Enterprise Server on System z, running on an IFL.  I'm not familiar with 
all the technical details of how it was done, but Mark Neft of Accenture has 
presented on the topic at SHARE multiple times.  (He _was_ involved in the 
project.)  I do know they were using Microfocus COBOL for the application code. 
 Not sure how the CICS piece was replicated/replaced.

http://www.share.org/p/do/sd/topic=302&sid=8747


Mark Post

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Re: IFL z/VM

[David L. Craig]

On 14Jan28:1142-0700, Mark Post wrote:

> The U.S. Postal Service migrated a good part of
> their CICS workload to SUSE Linux Enterprise Server
> on System z, running on an IFL.  I'm not familiar with
> all the technical details of how it was done, but Mark
> Neft of Accenture has presented on the topic at SHARE
> multiple times.  (He _was_ involved in the project.)
> I do know they were using Microfocus COBOL for the
> application code.  Not sure how the CICS piece was
> replicated/replaced.
> 
> http://www.share.org/p/do/sd/topic=302&sid=8747

MF COBOL is not your father's COBOL.  It has language
extensions that, among other features, permit the
programmer to do anything in COBOL that can be done
in C.  This is why the MF compiler itself is written
in MF COBOL and is no sluggard.
-- 

May the LORD God bless you exceedingly abundantly!

Dave_Craig__
"So the universe is not quite as you thought it was.
 You'd better rearrange your beliefs, then.
 Because you certainly can't rearrange the universe."
__--from_Nightfall_by_Asimov/Silverberg_

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Re: FIND macro Failed with TCBJLB

[Micheal Butz]

TSOLIB is a reflection of the last attach

I was running under test tmp attaches 
Test and the library is the tasklib

The trick is to find out what TCB has the TSOLIB as it's tasklib

Sent from my iPhone

> On Jan 27, 2014, at 8:41 AM, "Shmuel Metz (Seymour J.)" 
>  wrote:
> 
> In
> ,
> on 01/25/2014
>   at 10:09 PM, MichealButz  said:
> 
>> Can I use the DCB represented by TCBJLB with the FIND macro
> 
> Why? Use BLDL or DESERVE.
> 
> -- 
> Shmuel (Seymour J.) Metz, SysProg and JOAT
> ISO position; see  
> We don't care. We don't have to care, we're Congress.
> (S877: The Shut up and Eat Your spam act of 2003)
> 
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Re: Utilization of Crypto CPU

[Rob Schramm]

I know that the folks at PKWare had their own way of keeping stats on CPACF
prior to the CPU Measurement Facility.  I am sure there were others.. they
just always come to mind first.

Rob Schramm

Rob Schramm
Senior Systems Consultant
Imperium Group



On Tue, Jan 28, 2014 at 1:36 PM, Greg Boyd  wrote:

> Unfortunately, the RMF Crypto Hardware Activity report will be focused on
> the utilization of the crypto cards (the Crypto Express cards), not the
> CPACF.  The CPACF simply provides some additional instructions that perform
> crypto operations (Cipher Message, Compute Message Digest, etc.).  And just
> as you can't break out the CPU utilization of a single Move Character or
> Shift Logical instruction, you can't break out the CPU utilization of these
> instructions either.
>
> That said, starting with the z10 machines we did make the CPU Measurement
> Facility available.  This facility gives you the ability to 'count'
> instructions and that includes many of the crypto instructions.  John Burg
> has done presentations on the use of the Measurement Facility at Share and
> zExpo/zTech University.  You can access at least one version of the
> presentation on the IBM ATS TechDocs website (
> http://www.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/TC05).
>
> I should point out that the Measurement Facility captures data at the LPAR
> level.  In contrast, the RMF Crypto Hardware Activity report is for the
> entire CEC, and thus the entire crypto card.  The point being that you have
> to be careful how you interpret the reports (both of them).
>
> John has experimented with using the data from the counters to calculate
> the CPU consumption of the various instructions.  If nothing else, you
> should probably monitor these counters (at least for the crypto
> instructions) so you can develop trend lines and monitor the use of crypto
> at that level.
>
> Greg Boyd
> IBM Advanced Technical Support
> Supporting Crypto on System z
>
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Re: IFL z/VM

[Mike Schwab]

You can order zIIPs and or zAAPs to assist in running CICS from z/OS.
DB2 / Sort / Java / other enabled products.

On Tue, Jan 28, 2014 at 11:57 AM, JT  wrote:
> From my manager.
> Is it possible to run CICS (executing COBOL application code) on an IFL?
>
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-- 
Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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VTOCIX out of VIRs, how to reorg?

[Mike Schwab]

We have a system that has Mobius creating a large number of small
datasets, unfortunately named HLQ.pgmname.ddname.R#.Dyymmdd.Thhmmss.

They migrate to ML1 volumes with SDSP.  We defined the VTOC as 1500
tracks (plenty of free space) and 74 tracks VTOCIX (down to 3 and
can't write anymore).

I think the ICKDSF BUILDOS / BUILDIX process will re-init the index to
allow migrates.

Is there any other way to reorg the VTOCIX to get the space back?
Its not VSAM so CA-Reclaim does not work on it.

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Mike A Schwab, Springfield IL USA
Where do Forest Rangers go to get away from it all?

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Re: VTOCIX out of VIRs, how to reorg?

[Pew, Curtis G]

On Jan 28, 2014, at 5:00 PM, Mike Schwab  wrote:

> I think the ICKDSF BUILDOS / BUILDIX process will re-init the index to
> allow migrates.

That’s the only way I know to do it.

-- 
Curtis Pew (c@its.utexas.edu)
ITS Systems Core
The University of Texas at Austin

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multiple TSO Sessions

[Govind Chettiar]

A contractor who joined our team said that in his previous place of employment 
he could have multiple TSO sessions each of which used the same userid and 
password, so he used to have multiple instances of his TN3270 emulator running 
and a different TSO session in each.

I am curious to know how this is possible...can anyone explain?

My b/g is Cobol application development, so not versed with VTAM etc, so bear 
with me!

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Re: multiple TSO Sessions

[Tim Brown]

Unless he was using accessing 2 separate lpars I don't believe its possible.

Sent from my Android phone using TouchDown (www.nitrodesk.com)

-Original Message-
From: Govind Chettiar [rasha...@gmail.com]
Received: Tuesday, 28 Jan 2014, 9:15pm
To: IBM-MAIN@LISTSERV.UA.EDU [IBM-MAIN@LISTSERV.UA.EDU]
Subject: multiple TSO Sessions

A contractor who joined our team said that in his previous place of employment 
he could have multiple TSO sessions each of which used the same userid and 
password, so he used to have multiple instances of his TN3270 emulator running 
and a different TSO session in each.

I am curious to know how this is possible...can anyone explain?

My b/g is Cobol application development, so not versed with VTAM etc, so bear 
with me!

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Re: multiple TSO Sessions

[Ted MacNEIL]

You can access TSO from multiple LPARs with the same ID and password in the 
same SYSPLEX.
As of a few years ago, you can even use the same ISPPROF dataset.
But, you cannot sign on twice to the same LPAR with the same ID.
-
-teD

300,000 Kilometres per Second
Not only is it a good idea!
It's the LAW!!!

-Original Message-
From: Tim Brown 
Sender:   IBM Mainframe Discussion List 
Date: Wed, 29 Jan 2014 02:24:41 
To: 
Reply-To: IBM Mainframe Discussion List 
Subject: Re: multiple TSO Sessions

Unless he was using accessing 2 separate lpars I don't believe its possible.

Sent from my Android phone using TouchDown (www.nitrodesk.com)

-Original Message-
From: Govind Chettiar [rasha...@gmail.com]
Received: Tuesday, 28 Jan 2014, 9:15pm
To: IBM-MAIN@LISTSERV.UA.EDU [IBM-MAIN@LISTSERV.UA.EDU]
Subject: multiple TSO Sessions

A contractor who joined our team said that in his previous place of employment 
he could have multiple TSO sessions each of which used the same userid and 
password, so he used to have multiple instances of his TN3270 emulator running 
and a different TSO session in each.

I am curious to know how this is possible...can anyone explain?

My b/g is Cobol application development, so not versed with VTAM etc, so bear 
with me!

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