Re: VM system name

[Alan Ackerman]

I’m sorry. A great deal of email on my Mac disappeared last summer and recently 
reappeared.  I’ m going back and trying to respond to old emails. I don’t know 
what happened. I installed the beta version on MacOSX Big Sur last summer and 
I’m guessing that caused email to disappear and when Apple fixed it the email 
reappeared. 

Perhaps I should include a disclaimer with all my replies. 

I didn’t know you were only offering this for SUSE. If I’d known I would not 
have replied. 

Sent from my iPhone

On Oct 4, 2020, at 11:02 AM, Mark Post  wrote:

On 10/3/20 8:10 PM, Alan Ackerman wrote:
> I think it's rude of you to post a question to a public forum and then tell 
> me I have no say because I'm retired. 

It's been over two months, Alan. Have you been holding on to this that
whole time?

I participate in this mailing list for a variety of reasons. First, I
believe in the platform and want to see it succeed.
Second, I'm trying to give back to the community for all the help I
received when I needed it back in 2000 and later.
Third, I like helping people.
Fourth, I want to show people that SUSE takes an interest in this
platform, more so than any other distribution provider.
Fifth, to show that SLES is the superior Linux for Z distribution and
that we want to take good care of our customers.

I have a fair amount of leeway in how I spend my time on the mailing
list. I've never received any criticism from anyone at SUSE for helping
Red Hat customers, or those of any other non-SUSE distribution. My
management also views that as good for the platform, and so also good
for SUSE.

When it comes to spending a fair amount of time and company resources
developing a tool that may or may not be useful to my customers, I have
to be a bit more business minded. So, doing something just because I
think it might be a good idea is not something I do very often. I want
to hear from our customers about that. And I say it that way because as
much as I support the platform in general, over the years I've been
watching them, Red Hat has a definite tendency towards the "not invented
here" type of thinking. They have surprised me from time to time, but I
don't count on that.

So when I say your vote in favor didn't really count in my data
gathering process, it's not about you, per se. I needed to hear from
people currently working that might possibly use the tool because
they're familiar with how their installation does things such as
automation or reporting, etc. AND, that are actually our customers
because I know that whatever I put out there will indeed become
available to them, and be supported.

> I've been involved with VM for 46 years and I think my opinion has some value.

In a general sense, sure, but not necessarily to making a *business*
decision for SUSE.

> And I could have used your tool when I was working.

See above for why I have to discount that.

I try, as much as possible, to be honest and *direct* when dealing with
people, whether in my personal or professional life. Sometimes the
directness may be too direct. My intention is (rarely) ever to be rude
to anyone. If the way I worded things came across that way and caused
offense (as you say it has done) then I apologize for that. I will try
to avoid doing that again in the future.


Mark Post

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Re: VM system name

[Alan Ackerman]

I said:

Yes! I spent a fair amount of time writing EXECs to figure these things out 
when I worked for Bank of America. I put the results on a web page that listed 
all our VM systems. I’m retired so I don’t need it any more. 

Mark said:

OK, that's one (sorry, but retirees who won't use the tool don't help
the business case). Anyone else?

I think it's rude of you to post a question to a public forum and then tell me 
I have no say because I'm retired. 

I've been involved with VM for 46 years and I think my opinion has some value.

And I could have used your tool when I was working.

I don't want to get involved with Red Hat versus SUSE. I think if you release 
the tool for SUSE, it will be up to Red Hat what they decide to do, not me.

Alan Ackerman
alan.ackerma...@gmail.com



On Jul 20, 2020, at 12:16 PM, Mark Post  wrote:

On 7/20/20 1:09 PM, Stewart, Lee wrote:
> +1

OK, that's one (sorry, but retirees who won't use the tool don't help
the business case). Anyone else?


Mark Post

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Re: VM system name

[Alan Ackerman]

As far as I know they are running Red Hat. 

Why does that matter?

Alan Ackerman
alan.ackerma...@gmail.com



On Jul 20, 2020, at 12:16 PM, Mark Post  wrote:

On 7/20/20 1:09 PM, Stewart, Lee wrote:
> +1

OK, that's one (sorry, but retirees who won't use the tool don't help
the business case). Anyone else?


Mark Post

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Re: VM system name

[Alan Ackerman]

Humpf! I think my opinion still counts. I may never use it, but I think Bank of 
America probably will.

Alan Ackerman
alan.ackerma...@gmail.com



On Jul 20, 2020, at 12:16 PM, Mark Post  wrote:

On 7/20/20 1:09 PM, Stewart, Lee wrote:
> +1

OK, that's one (sorry, but retirees who won't use the tool don't help
the business case). Anyone else?


Mark Post

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Re: VM system name

[Alan Ackerman]

Yes! I spent a fair amount of time writing EXECs to figure these things out 
when I worked for Bank of America. I put the results on a web page that listed 
all our VM systems. I’m retired so I don’t need it any more. 

Sent from my iPhone

On Jul 18, 2020, at 11:59 AM, Mark Post  wrote:

On 7/17/20 12:18 PM, Marcy Cortes wrote:
> Late to the game, but I would probably make a .service file that did 
> something like
> 
> ExecStart= echo $(/sbin/vmcp q userid | awk '{print $3}') > /etc/vmsysname
> 
> and then anything could look at the file.
> 
> An LGR'd guest would be wrong, but I don't think you use that.

Would people find it helpful if a command is introduced to the
s390-tools package that will return one or more of the following data
points:
1. z/VM or KVM Guest name
2. z/VM Host name
3. KVM Host name
4. LPAR name
5. CEC name

??

Mark Post

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I've retired

[Alan Ackerman]

I retired from Bank of America on 2/8/2020 (my 73rd birthday). If you want to 
send me email, please used the address:

alan.ackerma...@gmail.com <mailto:alan.ackewrma...@gmail.com>

I intend to remain on this LINUX-390 mailing list, if I can figure out how.

 
Alan Ackerman
alan.ackerma...@gmail.com





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Re: Velocity Performance Class

[Alan Ackerman]

This email seems to have no content.

Alan Ackerman
alan.ackerma...@gmail.com



On Oct 29, 2019, at 6:34 AM, Rich Smrcina  wrote:



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Re: question on SWAPGEN preferences

[Alan Ackerman]

I thank you for doing this! Long ago and far away I did report a problem with 
SWAPGEN. I took this up with IBM, since they were providing our Linux (Red Hat) 
support and since they used SWAPGEN in their RedBook. Eventually, IBM 
determined that the problem was not in SWAPGEN but in systemd. They tried to 
convince Red Hat to make some changes, but Red Hat refused. Nevertheless, the 
problem went away when we put on some service, so I didn't pursue it any 
further.


My original post was 
Date: Mon, 16 May 2016 10:28:55 -0700
http://www2.marist.edu:8000/htbin/wlvtype?LINUX-VM.92905


Alan Ackerman
alan.ackerma...@gmail.com



On Dec 29, 2018, at 11:29 AM, David Boyes  wrote:

On 12/27/18, 11:16 AM, "Linux on 390 Port on behalf of Rob van der Heij" 
 wrote:

> I don’t see how specifying the size should make a difference, apart from
> the last odd blocks when an arbitrary size does not make a full number of
> cylinders.

Apparently there are still a fair number of people who care about SWAPGEN (who 
knew?) mostly to deal with creating swap on VDISKs, so I'm trying to address 
the stuff I've had queued up on the round tuit list. It's been a few years 
since the last release, so the list is somewhat longer, but I can make educated 
guesses for many of those. 

Reason for the size/units question was to make it friendlier for non-CMS 
literate people who don't (and don’t want to) understand the underlying disk 
geometries and just want to say "give me a 18G swap disk *there*" and have it 
automagically sort out what it needs to do to make that happen -- purely a 
usability issue. I agree that for real 3390/FBA swap disk, setting size in 
SWAPGEN is irrelevant, but creating swap space for that use case is persistent 
across logons, so it's less important to me. 

The BLKSIZE option was requested by someone a while back to try to align it 
with more efficient use of space with larger memory page sizes to try to better 
align the # of I/Os needed to move a complete frame in and out. Future item 
(IIRC, Alan was talking about it as a fairly distant need), but I've got some 
spare time to think about it at the moment. 

Figured I'd ask and see what people want, so there it is. If nobody cares, then 
I won't expend any more effort on it. 




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Re: Cutting ‘Old Heads’ at IBM

[Alan Ackerman]

I’m under no illusion that I would have any luck in finding another job. It’s 
work for the Bank or retire. (He says slyly, sitting back and waiting for a 
flood of headhunters.) 

Sent from my iPhone

On Nov 16, 2018, at 5:49 PM, Scott Rohling  wrote:

I've been working at home exclusively (except for customer engagements)
since 1996 or so..  I think I'd have retired much sooner if I'd had a daily
commute to deal with.  In this virtual world - physical location means less
and less.

I'm not sure there's anyone on my team less then 50 - so that rumor may be
true :-)  I'll be passing a baton to someone who may or may not make it to


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Re: Cutting ‘Old Heads’ at IBM

[Alan Ackerman]

I’m 71. So far I have no desire to retire and have not been encouraged to 
leave. I’m not aware of age discrimination here. 

Several years back (5-10) we were encouraged to go work at home. I may have 
been the last one to take the offer. I’m gregarious by nature, but eventually I 
was surrounded by empty cubicles and attending all meetings by phone. New 
management came in and wanted us all to come back in to work. For a few years 
I’ve been told Concord (CA) is next. Quite a few people went back in this 
month. But I was not contacted. The rumor is that management has decided not to 
bother mainframers for fear we will retire rather than going back into work. 
(Might be true!)

This is relevant to this discussion because it appears to be the reverse of 
what happened at IBM. 

Sent from my iPhone

On Nov 16, 2018, at 3:14 PM, Rick Troth  wrote:

> On 11/16/18 4:33 PM, Gabe Goldberg wrote:
> https://features.propublica.org/ibm/ibm-age-discrimination-american-workers/
> 
> 
> No surprises, just a lot of details...


As it happens, I just learned this week that a good friend was cut loose
from a certain other company. I won't say which, but I used to work
there. He said new manglement decided to get rid of "long timers". The
way he said it, the ax was more about longevity ... "you say that like
it's a bad thing". It struck me that the new owners wanted firm control
or some such. Brilliant: get rid of the people who know the products,
business, customers best. Just camp on that juicy IP and stack-o-patents
and brand. oy

My buddy is definitely running into ageism on his new search though:
lots of interviews, no offers.

Re-invent yourself, retrain, reassign, relocate. BT/DT and would again
for the right job. But I don't think these execs really want to hire
skill, talent, or know-how.

Paul Henry is mentioned in the ProPublica piece. I know him! He hired me
at Nationwide. I remember his thick Boston accent as he baited me,
"We're serious about virtualization".

-- R; <><








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New Redbooks

[Alan Ackerman]

I have:

“The Virtualization Cookbook for IBM z Systems Volume 1: IBM z/VM 6.3, 
SG24-8147-01”

The Virtualization Cookbook for IBM z Systems Volume 2: Red Hat Enterprise 
Linux 7.1 Servers

Is there one for z/VM 6.4 or 7.1? RHEL 7.4 or anything newer that RHEL 7.1?

Sent from my iPhone
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Re: SLES 12 upgrade fails

[Alan Ackerman]

I have the same problem — I am not seeing Marcy’s posts. I also don’t see 
anything about SLES 12 upgrade fails on the web page. 

Sent from my iPhone

On Mar 14, 2018, at 5:15 PM, Gregg Levine  wrote:

Hello!

Mark as interesting as our discussions are, there is a more
interesting problem, I'm not seeing anything by Marcy except as a
response. That is when someone responds to something that Marcy
posted.
-
Gregg C Levine gregg.drw...@gmail.com
"This signature fought the Time Wars, time and again."
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Re: SLES12 Kernel parameter root=/dev/dasd-x

[Alan Ackerman]

http://www2.marist.edu/htbin/wlvtype?LINUX-VM.93689 
<http://www2.marist.edu/htbin/wlvtype?LINUX-VM.93689> got me:

linux-...@www2.marist.edu post from :
Index <http://www2.marist.edu/htbin/wlvgl?L=LINUX-VM=>
Previous <http://www2.marist.edu/htbin/wlvtype?LINUX-VM.DBI.1> Lines: From: 
Subject:
 Sorry,  WLVTYPE  has experienced a serious syntax error. If the error 
persists, contact  Error Report <mailto:HARRY@SERVER_NAME>

That link in turn tries to send email to HARRY@SERVER_NAME.

What's going on here?

Alan Ackerman
alan.ackerma...@gmail.com




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Re: Logs from Operator

[Alan Ackerman]

You are better off with CA VM:Operator or IBM Operations Manager for z/VM. If 
you insist on rolling your own, there are presentation available on how to use 
PROP. But it's going to cost you time. 

If your management thinks your time is free, then have fun! You'll need to 
learn REXX and Pipelines and PROP -- but I certainly enjoyed that.

Alan Ackerman
alan.ackerma...@gmail.com



> On Aug 15, 2016, at 8:56 AM, Tracy Dean <t...@us.ibm.com> wrote:
> 
>> From: joão paulo limberger (shoo) <jlimber...@gmail.com>
>> To: LINUX-390@VM.MARIST.EDU
>> Date: 08/13/2016 10:32 AM
>> Subject: Logs from Operator
>> Sent by: Linux on 390 Port <LINUX-390@VM.MARIST.EDU>
>> 
>> Hi All!
>> 
>> I want to receive in a linux VM  all the  messages sends to the console 
> of
>> the user Operator  ...
>> 
>> What is the best way to do this?
>> 
>> Thanks!!!
>> jp
> 
> If you have IBM Operations Manager for z/VM, you can easily capture all 
> messages to OPERATOR (or any other userid) and send them to a syslog 
> daemon running somewhere in your enterprise, including one running on a 
> Linux guest.  Feel free to contact me for more info.
> 
> Tracy Dean, IBM
> t...@us.ibm.com
> 
> 
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Re: Other migration problems (was Unable to login with ssh)

[Alan Ackerman]

According to a presentation I saw at SHARE the problems include storage 
overlays. I don't think you even want try it. 

Sent from my iPhone

> On Jun 29, 2016, at 4:20 PM, Grzegorz Powiedziuk  
> wrote:
> 
> From what Alan and Mark said, I understand that not working ssh might have
> been just a small result of bigger problem - data corruption. So
> practically anything else might go wrong too.
> Gregory
> 
> 2016-06-29 14:01 GMT-04:00 Duerbusch, Tom :
> 
>> I didn't want to hijack the original thread so
>> 
>> The conclusion on the original thread was that you need to be on a
>> supported release of Suse when you go to a new z13.  This involved SSH and
>> I assume crypto hardware.
>> 
>> We have been planing to go to a z13 this year.
>> I've said that many times before as we are on a z890, and have planed to go
>> to a z9, z10, z114, z12 and now z13.
>> 
>> We have SLES 9, SLES 10 and SLES 11 running.
>> (After WAVV in 2011, I did manage to sunset our SLES 7 and SLES 8 guests)
>> 
>> I'm ok with not being able to use new features/functions that are on a
>> z13/zVM 6, on the unsupported software, but I'm now concerned about what I
>> might loose, or crash with the new hardware.
>> 
>> SSH isn't much of a problem, as there are so few people that actually log
>> on to Linux or use SSH with Linux applications.
>> 
>> So, the question is:
>> Is there any other problems that others have come across, when migrating
>> unsupported SLES systems to a z13?
>> 
>> Thanks
>> 
>> Tom Duerbusch
>> THD Consulting
>> 
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Re: SWAPGEN + RHEL 7

[Alan Ackerman]

We have two VDISKs and one real disk for swap area for each zLinux server. We 
run SWAPGEN on all of them every time we boot CMS, but as you point out, it 
only has to be done once for the real disk.

The VDISK are 10% and 5% of memory size (up to VDISK maximum. The real disk is 
800 cyl.

I'm not sure why we did that. (Other recommendations are welcome.) I remember 
IBM suggested swap = 10-15% of memory, and to use VDISK. I don't remember where 
the real disk came from, though.

The theory is we track when the third (real) disk is used. But we never set 
that up. (I guess I'd better ask Velocity Software how to alert for that.)

Alan Ackerman
alan.ackerma...@gmail.com



> On May 16, 2016, at 4:18 PM, Mark Post <mp...@suse.com> wrote:
> 
>>>> On 5/16/2016 at 04:40 PM, "Cohen, Sam" <sam.co...@lrs.com> wrote: 
>> I use the Format/Reserve to use the DIAG driver, which I've found to be more 
>> efficient than the FBA driver.
> 
> If you're using real DASD, you don't need to keep re-writing swap signatures 
> after the first time.  That's only necessary with TDISKs or VDISKs where 
> you're not sure if it's "new" or not.
> 
> 
> Mark Post
> 
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SWAPGEN + RHEL 7

[Alan Ackerman]

Does anyone have SWAPGEN working with RHEL 7?
 
We are having problem with SWAPGEN EXEC. 
 
If I do not use the FBAPART option on SWAPGEN, I get these errors at the end of 
every boot:
 
08:38:52 [   24.130992] attempt to access beyond end of device
[   24.131000] dasdc1: rw=0, want=415944, limit=415941 
[   24.146104] attempt to access beyond end of device 
[   24.146108] dasdd1: rw=0, want=831896, limit=831890
 
If I do use the FBAPART option, I get these errors during every boot:
 
14:54:44 EXEC SWAPGEN 0101 ( FBAPART REUSE DEBUG  
14:54:44 SWPSWA0012I DIAG swap disk defined at virtual address 0101 with  
dasd=0.0.0100 rd.dasd=0.0.0101 rd.dasd=0.0.0102 cio_ignore=all,!0.0.0009 rd.znet
=qeth,0.0.aa00,0.0.aa01,0.0.aa02,layer2=1,portno=0 L  
[1.046050] dasdconf.sh Warning: Could not find 0.0.0101 in sysfs  
[1.046161] dasdconf.sh Warning: Could not find 0.0.0101 in sysfs   
[1.046735] dasdconf.sh Warning: Could not find 0.0.0101 in sysfs  
[1.071256] dasd-fba 0.0.0101: New FBA DASD 9336/10 (CU 6310/80) with 409 MB
and 512 B/blk 
[1.103730] dasdconf.sh Warning: 0.0.0101 is already online, not configuring
[5.881606] dasdconf.sh Warning: 0.0.0101 is already online, not configuring
["[32m  OK  "[0m] Found device /dev/disk/by-path/ccw-0.0.0101-part1.  
 Activating swap /dev/disk/by-path/ccw-0.0.0101-part1...  
["[1;31mFAILED"[0m] Failed to activate swap /dev/disk/by-path/ccw-0.0.0101-part1
. 
See 'systemctl status "dev-disk-by\\x2d0.0101\\x2dpart1.swap"' for details.
 
RHEL 7.2 on z/VM 6.3.
 
Filename Filetype Fm Format LreclRecords Blocks   Date   Time 
SWAPGEN  HELPCMS  B1 V 76279  3 2013-12-23 10:45:36
SWAPGEN  EXEC B2 V 72599  7 2013-12-17 21:52:11


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Re: crash with convert option

[Alan Ackerman]

See 
https://www-01.ibm.com/support/knowledgecenter/mobile/#!/linuxonibm/com.ibm.linux.z.lgdt/lgdt_t_vmdump_copy.html

Sent from my iPhone

> On Mar 1, 2016, at 9:32 AM, Victor Echavarry Diaz  
> wrote:
> 
> Does anyone know how to use the crash tool with the convert option? We use a 
> VMDUMP and VMUR REC -C to generate e dump under SLES 11SP4.
> 
> Regards
> 
> Victor Echavarry
> System Programmer, EVERTEC LLC
> 
> 
> 
> 
> WARNING: This email and any files transmitted with it are confidential and
> intended solely for the use of the individual or entity to whom they are
> addressed. If you have received this email in error please delete it 
> immediately.
> Please note that any views or opinions presented in this email are solely 
> those
> of the author and do not necessarily represent those of EVERTEC, Inc. or its
> affiliates. Finally, the integrity and security of this message cannot be
> guaranteed on the Internet, and as such EVERTEC, Inc. and its affiliates 
> accept
> no liability for any damage caused by any virus transmitted by this email.
> 
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Re: Dump a linux guest from z/VM

[Alan Ackerman]

We use stand-alone dump. Need's to be set up but you can do that from another 
guest. It will stop your server when you IPL it though. See the correct edition 
of Using the Dump Tools
on SUSE Linux Enterprise Server 11 SP3 
http://public.dhe.ibm.com/software/dw/linux390/docu/les3dt02.pdf

I don't see one for SP4. You might want to talk to SUSE first, though. 

Sent from my iPhone

> On Feb 26, 2016, at 1:56 PM, Victor Echavarry Diaz 
>  wrote:
> 
> We can't login a Linux guest ,but is working. We open an issue with novell, 
> they asked for a DUMP. But because we can't login, we can take the dump. Our 
> question is, can we made a dump from z/vm so Novell can use it? We have SLES 
> 11SP4 under z/VM 6.3 SSI.
> 
> Regards,
> 
> Victor Echavarry
> System Programmer, EVERTEC LLC
> 
> 
> 
> 
> WARNING: This email and any files transmitted with it are confidential and
> intended solely for the use of the individual or entity to whom they are
> addressed. If you have received this email in error please delete it 
> immediately.
> Please note that any views or opinions presented in this email are solely 
> those
> of the author and do not necessarily represent those of EVERTEC, Inc. or its
> affiliates. Finally, the integrity and security of this message cannot be
> guaranteed on the Internet, and as such EVERTEC, Inc. and its affiliates 
> accept
> no liability for any damage caused by any virus transmitted by this email.
> 
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Re: Curious about crash.

[Alan Ackerman]

I'm a little surprised that you are using -part2. We format all DASD with a 
single partition. If we want to break something up, we break it up into 
separate minidisks, each with a single partition. That allows us to tune using 
monitor data. 

Are you really using partition 2? If so, I'd be curious to know why.


Alan Ackerman
alan.ackerma...@gmail.com



> On Dec 16, 2015, at 6:45 AM, Tom Huegel <tehue...@gmail.com> wrote:
> 
> VFS: Cannot open root device "disk/by-path/ccw-0.0.0100-part2" or
> unknown-block(0,0)

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Re: 2015-08-28 Linux on z Systems - qclib 1.0.0 package drop on developerWorks

[Alan Ackerman]

I had no problem downloading it to my Mac and double-clicking on it to unpack 
it to a folder. Of course, I didn't actually install it on the Mac but I was 
able to read the .h documentation files.

I used Apple's Safari. I suggest you try other browsers, perhaps on a PC or a 
Mac.


 On Aug 28, 2015, at 12:18 PM, Neale Ferguson ne...@sinenomine.net wrote:
 
 The tgz suffix implies it’s gzipped but it’s not:
 
 
 [neale@aussie-1 ~]$ file qclib-1.0.0.tgz
 
 qclib-1.0.0.tgz: POSIX tar archive (GNU)
 
 [neale@aussie-1 ~]$ tar -tf qclib-1.0.0.tgz
 
 qclib-1.0.0/
 
 qclib-1.0.0/query_capacity_hypfs.c
 
 qclib-1.0.0/query_capacity_data.c
 
 
 [neale@aussie-1 ~]$ tar -tzf qclib-1.0.0.tgz
 
 
 gzip: stdin: not in gzip format
 
 tar: Child returned status 1
 
 tar: Error is not recoverable: exiting now
 
 From: Linux on 390 Port 
 LINUX-390@VM.MARIST.EDUmailto:LINUX-390@VM.MARIST.EDU on behalf of 
 Gerhard Hiller ghil...@de.ibm.commailto:ghil...@de.ibm.com
 Reply-To: Linux on 390 Port 
 LINUX-390@VM.MARIST.EDUmailto:LINUX-390@VM.MARIST.EDU
 Date: Friday, August 28, 2015 at 10:10 AM
 To: LINUX-390@VM.MARIST.EDUmailto:LINUX-390@VM.MARIST.EDU 
 LINUX-390@VM.MARIST.EDUmailto:LINUX-390@VM.MARIST.EDU
 Subject: [LINUX-390] 2015-08-28 Linux on z Systems - qclib 1.0.0 package drop 
 on developerWorks
 
 Please refer to
 http://www.ibm.com/developerworks/linux/linux390/whatsnew.html
 for qclib 1.0.0 package (qclib for 'Query Capacity library')
 * end of message
 
 
 Mit freundlichen Grüßen / Kind regards
 
 Gerhard Hiller
 
 
 [cid:_1_E45ACA4CE45AC49C004DE804C1257EAF]   
 [cid:_1_E45ACECCE45ACC74004DE804C1257EAF]   
 [cid:_1_E45AD44CE45AD1F4004DE804C1257EAF]
 Software Management and Linux Technologies
 IBM Systems
 
 [cid:_1_E45B4484E45B41FC004DE804C1257EAF]
 Phone:   +49-7031-16-4388IBM Deutschland
 [cid:_1_E45CAF94E45CAA14004DE804C1257EAF]
 
 Fax: +49-7031-16-3545Schoenaicher Str. 220
 E-Mail:  ghil...@de.ibm.commailto:ghil...@de.ibm.com   71032 
 Boeblingen
 Germany
 [cid:_1_E45CC4CCE45CC274004DE804C1257EAF]
 IBM Deutschland Research  Development GmbH
 Vorsitzende des Aufsichtsrats: Martina Koederitz,  Geschäftsführung: Dirk 
 Wittkopp
 Sitz der Gesellschaft: Böblingen / Registergericht: Amtsgericht Stuttgart, 
 HRB 243294   [cid:_1_E45CE824E45CE5CC004DE804C1257EAF]
 
 


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Re: SSH no-root, key-based authentication video

[Alan Ackerman]

Works for me. 

 On Jul 21, 2015, at 2:58 PM, Vitale, Joseph joseph.vit...@bnymellon.com 
 wrote:
 
 Is this site unavailable?   https://sites.google.com/site/mike99mac/home
 
 Thanks
 
 
 Joseph Vitale
 Technology Services Group
 Mainframe Operating Systems
 
 Pershing Plaza
 95 Christopher Columbus Drive
 Floor 14   
 Jersey City,  N.J.  07302
 Work  201-395-1509
 Cell917-903-0102
 
 
 -Original Message-
 From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of Michael 
 MacIsaac
 Sent: Tuesday, July 21, 2015 7:16 AM
 To: LINUX-390@VM.MARIST.EDU
 Subject: Re: SSH no-root, key-based authentication video
 
 Tomas,
 
 Thanks for the link - wow SourceForge is in trouble.
 
 In the meantime, I put the code up on:
https://sites.google.com/site/mike99mac/home
 
-Mike MacIsaac
 
 On Tue, Jul 21, 2015 at 2:36 AM, Pavelka, Tomas tomas.pave...@ca.com
 wrote:
 
 SourceForge R/W access has been offline for 4 days!!
 
 Have you seen this?
 
 
 https://www.reddit.com/r/sysadmin/comments/3do9k0/sourceforge_is_down_
 due_to_storage_problems_no_eta/
 
 
 Tomas Pavelka
 CA Technologies
 Sr Software Engineer
 
 CA CZ, s.r.o
 V Parku 12,
 148 00 Praha
 Czech Republic
 
 Office: +25996 | tomas.pave...@ca.com
 
 
 
 Id. Císlo 25694073, z obchodního rejstříku, vedeného Městským soudem v 
 Praze, oddíl C, vložka 61808 / Id. No. 25694073, registered in the 
 Commercial Register maintained by the Municipal Court in Praque, 
 Section C, File 61808
 
 
 -Original Message-
 From: Linux on 390 Port [mailto:LINUX-390@VM.MARIST.EDU] On Behalf Of 
 Michael MacIsaac
 Sent: Monday, July 20, 2015 8:18 PM
 To: LINUX-390@VM.MARIST.EDU
 Subject: SSH no-root, key-based authentication video
 
 Hello lists,
 
 I made a short 5 minute video on automating SSH key setup using zoom. 
 (the user's names are totally mythical :)) See:
 https://www.youtube.com/watch?v=p19-08aJUEA
 
 I plan to present on it in more detail tomorrow at MVMUA in 
 Poughkeepsie NY.
 
 Unfortunately, the latest code is not yet on the Internet as 
 SourceForge R/W access has been offline for 4 days!!  (so much for 
 'five nines'; they're down to one - but 'what do you want for nothing?' :)).
 
-Mike MacIsaac
 
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Re: console modes - what Linux sees

[Alan Ackerman]

Great work! 

That's a great write-up! I know nothing about system console. I'm in 
California and the mainframes are on the East Coast (meaning anything East of 
the Rockies.) Nor am I trusted with access to the HMC via TCP/IP.


A few more comments.

As a friend of mine said green screen is an acquired taste. (Green screen is 
a name for the IBM 3270 family of terminals.) Unless you want to learn to 
control z/VM or z/OS or z/TPF, it's not worth learning.

And it still won't give you 'vi' or 'top' or anything else full-screen, on a 
3270-emulator.


Some history:

A 3270 had only a few attention keys. PF1-12, PA1-3, Clear, Enter, and some 
Reset keys.

PF1-12 and Enter sent in the whole screen. (Approximately). When the screen was 
set up (by z/VM in 3215-emuation mode) with 2 input lines (132 characters) at 
the bottom, those are what got sent in.

PA1-3 sent only the key pressed. I'm not sure what Clear sent in, but in any 
case it was a request to clear the screen and redraw it.

There were also numerous keys that modified the screen or cursor position, but 
did not send anything.(Cursor movement arrows, tabs, Erase Input, etc.)

Esc did not exist. 


Now for Linux running on z/VM:

^C (hat-C or not-C) doesn't send anything, so you have to type ^C + Enter. (The 
Linux driver interprets this as a control-C).

PA1 takes you from VM Read to CP Read, so you can type CP commands directly, 
without #CP space in front of them. To get back to the normal mode you have to 
type BEGIN (or B) which is the CP command to start the virtual machine running 
again. (Someone else can talk about SET RUN ON if they like.)

I don't know what PA2 and PA3 do in Linux.

You can program PF1-24 to send short character strings, via CP SET commands. So 
if you want PF3 to send control-C you can do that:

#CP SET PF3 ^C

The above was all about real 3270s (3278s). You are probably sitting at a PC 
running a 3270-terminal emulator, and it can be programmed in many different 
ways. (See its manual.) But it still cannot send anything but the above, or 
combinations of them. What Esc does is up to the terminal emulator vendor, but 
I cannot think of any way to make 'vi' usable.

You could program the Esc key to send in a PF key which was set up via

#CP SET PFn ^[ 

but that would be interpreted as Esc + Enter, not just Esc.


 ]On Feb 23, 2015, at 11:45 AM, Rick Troth ri...@velocitysoftware.com wrote:
 
 Started this a couple weeks ago, but then had to put it aside. (Other
 things urgent, and had some checking to do.) But a friend asked a
 related question last week, so when answering that I think I managed to
 finish this.
 
 The thread with subject Interrupting Linux under z/VM session again
 points out the crucial need for understanding some basics in mainframe
 Linux. Console interaction with Linux on z is not difficult, but is
 grossly misunderstood by newcomers. (No slam on newbies; the interface
 tools paint a deceptive picture.) It's the kind of thing that should be
 covered early ... during orientation, before classes start your very
 first semester, prior to Linux/390 101.
 
 It's all about what Linux sees. With all hypervisors, there is a big
 difference between physical interaction and virtual interaction. The
 other hypervisors (than z/VM) have things somewhat easier because most
 of the virtual devices they present as console at least allow
 byte-at-a-type interaction. Confusion there is a little less.
 
 There are five modes of console operation for Linux on z:
 
  * what Linux sees as a 3215 (typewriter)
  * what Linux sees as a 3270
  * what Linux sees as the system console (SYSC in z/VM speak)
  * what Linux sees as the ASCII system console
  * what Linux sees by way of IUCV (can do byte at a time)
 
 
 The 3215 is most common when Linux is hosted by z/VM. You connect with a
 3270 emulator, so the conversation is about 3270, but that's *not*
 what the guest sees.
 
 
 On 01/21/2015 07:55 AM, John McKown wrote:
   ...   I can't duplicate the OP's environment,
 but I wonder why he can't just do the normal: escape followed by :q! to
 exit vi.
 
 There's no way for Linux on z/VM to see an Escape character by way of
 the 3215.
 Linux using (what it sees as) a 3215 will never get byte-at-a-time and
 will never see an actual Escape nor an actual Ctrl-C.
 
 ^c or ^z are special short-hand for faking it, but as John mentioned (in
 the note cited above), 'vi' (VIM) can intercept interruptions.
 
 - what follows is long -
 
 Back up ... always an exception to the rule ... it's possible but really
 really really difficult for Linux to see an Escape by way of what it
 thinks is a 3215. If the 3215 is presented by way of a 3270 (emulated or
 otherwise) it is likely not possible.
 
 The 3215 console driver in the Linux kernel takes the EBCDIC not
 (sometimes rendered as hat) and then marks the following character as
 a control character. So ^c becomes Ctrl-C. For Escape, that would
 typically be ^[. But don't get me 

Re: Docker

[Alan Ackerman]

OK, so what is Docker? What is a container? For that matter what is the go 
language? Don't we have enough languages, already?

 On Feb 16, 2015, at 12:55 PM, Neale Ferguson ne...@sinenomine.net wrote:
 
 But it requires the go language to be built. The IBM folks have also been
 porting go to System z via the gccgo project.
 
 On 2/16/15, 3:41 PM, Mark Post mp...@suse.com wrote:
 
 On 2/16/2015 at 02:13 PM, Neale Ferguson ne...@sinenomine.net
 wrote: 
 http://mainframedebate.com/2015/02/11/docker-and-the-mainframe/
 
 
 If you were paying attention at the announce of the new z13 processor,
 you might have noticed that IBM announced that they have Docker
 containers
 working on z Systems now.
 
 No big surprise.  Docker is written in ruby, and relies on Linux
 Containers (LXC) and control groups to do its thing.  All rather portable.
 

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Re: Install of SUSE Linux on IBM z LPAR

[Alan Ackerman]

We decided very early (2001?) that we would only run mainframe Linux under 
z/VM. Seeing discussions like this certainly makes me glad we made that 
decision.

I don't know if it makes a difference, but we run Red Hat Linux, to be 
consistent with our midrange Linux folks.

Is either Red Hat or SUSE Linux better for running in an LPAR?

 On Feb 5, 2015, at 8:32 AM, Stewart, Lee lstew...@visa.com wrote:
 
 One other thought...   Consider working with your IBM reseller.  The normally 
 have people that can help you through things like the initial installs.  And 
 if this is intended to be (or become) a real Proof of Concept, they can 
 frequently help you get a trial for z/VM to show you how much easier it can 
 make your life, as well as other parts you may want...
 
 Lee Stewart ● VM System Support ● Visa ● Phone:  6(750)4601 - +1-303-389-4601 
 ● lstew...@visa.com

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Re: Automated performance reporting on Linux on Z

[Alan Ackerman]

Would you be willing to tell us those annoying idosyncrasies?

Our shop is very unlikely to move away from Velocity, but newer customers, such 
as the Original Poster, might find it useful.

 To successfully grow a zLinux farm, you *need* a commercial performance
 management solution for z/VM.   All of the solutions mentioned here are
 excellent.   Each has its own annoying idiosyncrasies, of course, but so
 does any other applications you buy.
 
 Alan Altmark
 
 Senior Managing z/VM and Linux Consultant
 Lab Services System z Delivery Practice
 IBM Systems  Technology Group
 ibm.com/systems/services/labservices
 office: 607.429.3323
 mobile; 607.321.7556
 alan_altm...@us.ibm.com
 IBM Endicott

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Re: Bash specially-crafted environment variables code injection attack

[Alan Ackerman]

 On Sep 25, 2014, at 10:44 AM, Veencamp, Jonathon D. jdveenc...@fedins.com 
 wrote:
 
 Just a word of warning that Red Hat considers their current patch potentially 
 incomplete.  It solves the test that everyone is using to test vulnerability, 
 but isn't necessarily comprehensive.  So there may be more than one round of 
 patches on this, perhaps from all vendors
 
 https://bugzilla.redhat.com/show_bug.cgi?id=1141597
 
 Statement:
 Red Hat has become aware that the patches shipped for this issue are 
 incomplete. An attacker can provide specially-crafted environment variables 
 containing arbitrary commands that will be executed on vulnerable systems 
 under certain conditions. The new issue has been assigned CVE-2014-7169.

Here is a new CVE at 
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-7169

CVE-2014-7169
Summary: GNU Bash through 4.3 bash43-025 processes trailing strings after 
certain malformed function definitions in the values of environment variables, 
which allows remote attackers to write to files or possibly have unknown other 
impact via a crafted environment, as demonstrated by vectors involving the 
ForceCommand feature in OpenSSH sshd, the mod_cgi and mod_cgid modules in the 
Apache HTTP Server, scripts executed by unspecified DHCP clients, and other 
situations in which setting the environment occurs across a privilege boundary 
from Bash execution. NOTE: this vulnerability exists because of an incomplete 
fix for CVE-2014-6271.
Published: 9/24/2014 9:55:04 PM
CVSS Severity: 10.0 HIGH

The difference is NOTE: this vulnerability exists because of an incomplete fix 
for CVE-2014-6271.

I didn't mean to imply in my note that other distributers weren't also working 
on fixes. We are a Red Hat customer, so that is all the notices we have 
received. The previous CVE only referenced Red Hat links. 

I'm not surprised the Mac OS X is late -- they always are.

Has anyone heard of any exploits?

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Bash specially-crafted environment variables code injection attack

[Alan Ackerman]

CVE-2014-6271 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6271
Summary: GNU Bash through 4.3 processes trailing strings after function 
definitions in the values of environment variables, which allows remote 
attackers to execute arbitrary code via a crafted environment, as demonstrated 
by vectors involving the ForceCommand feature in OpenSSH sshd, the mod_cgi and 
mod_cgid modules in the Apache HTTP Server, scripts executed by unspecified 
DHCP clients, and other situations in which setting the environment occurs 
across a privilege boundary from Bash execution.
Published: 9/24/2014 2:48:04 PM

CVSS Severity: 10.0 
http://nvd.nist.gov/cvss.cfm?name=CVE-2014-6271vector=(AV:N/AC:L/Au:N/C:C/I:C/A:C)version=2.0
 HIGH
CVE-2014-6271 http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6271 
at http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6271 
http://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2014-6271

Note this applies to all versions of bash. Red Hat has published fixes. I 
haven't seen any for SuSE Linux or Mac OS X, or anything else

Easy test:

$ env x='() { :;}; echo vulnerable' bash -c echo this is a test
vulnerable
this is a test
$ 

https://bugzilla.redhat.com/show_bug.cgi?id=1141597 
https://bugzilla.redhat.com/show_bug.cgi?id=1141597

https://securityblog.redhat.com/2014/09/24/bash-specially-crafted-environment-variables-code-injection-attack/
 
https://securityblog.redhat.com/2014/09/24/bash-specially-crafted-environment-variables-code-injection-attack/
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Re: Your postings on Linux-390

[Alan Ackerman]

This one came to me as blank. (Almost all of yours appear as blank.) And I am 
using Apple Mail to read it, not Thunderbird.  I can read it, I just have to go 
into View  Message  Raw Source. Is there anything below? 

On Jan 28, 2013, at 6:57 AM, Rick Troth wrote:

 

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Re: CCL OSA device not activated

[Alan Ackerman]

We have installed RHEL 5.8 on z/VM 6.2. I cannot think of any reason why that 
would not work. We did have a problem with Vintela, had to upgrade to a newer 
version, but it was a Vintela bug, not RHEL or z/VM. I'm not at work, or I'd 
give you the Vintela versions.

On Nov 9, 2012, at 12:50 AM, SrinivasG wrote:

 Have a doubt. Is it possible to install RHEL 5.8 on ZVM 6.2?
 
 Thanks in advance..
 
 Regards,
 Srinivas G


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Re: Redhat trying to patent netboot?

[Alan Ackerman]

There is a new patent law. It changes patents from first-to-invent (FTI) to 
first-to-file (FTF). I'm no lawyer, but does this mean forgetting about prior 
art? 

Lots on the Web about it, many saying it favors large companies who can afford 
to file large numbers of patents.

So this filing may be a consequence of the new law.

 http://www.google.com/patents/about/12_475_436_SYSTEMS_AND_METH
 ODS_FOR_MANAG.html?id=dgXkEBAJ
 
 WTF? I don't think so, there, boys. You guys certainly didn't invent this. 
 
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OT: TCU in Fort Worth

[Alan Ackerman]

Small world: I learned FORTRAN when I was in high school, using TCU's IBM1620. 
We used a keypunch and punched cards, though, no terminals or paper tape were 
available. 

We lived a couple of blocks from the old city golf course which became part of 
TCU. TCU was run by my Dad's denomination, Disciples of Christ. I guess he 
thought he could save money by sending us there and having us live at home. 
(None of us did.)

Alan Ackerman

On Sep 14, 2011, at 11:16 AM, McKown, John wrote:

 I thought the paper tape TTYs were called ASR (Automatic Send Receive?) 
 instead of KSR (Keyboard Send Receive). I remember using one back in high 
 school at a special program at TCU in Ft. Worth. I was impressed. Not with 
 the KSR, but with the professor who apologized for being late - he was 
 trading in his 2 year old Rolls Royce for a new one.
 
 --
 John McKown 
 Systems Engineer IV
 IT
 
 Administrative Services Group
 
 HealthMarkets(r)
 
 9151 Boulevard 26 * N. Richland Hills * TX 76010
 (817) 255-3225 phone * 
 john.mck...@healthmarkets.com * www.HealthMarkets.com
 
 Confidentiality Notice: This e-mail message may contain confidential or 
 proprietary information. If you are not the intended recipient, please 
 contact the sender by reply e-mail and destroy all copies of the original 
 message. HealthMarkets(r) is the brand name for products underwritten and 
 issued by the insurance subsidiaries of HealthMarkets, Inc. -The Chesapeake 
 Life Insurance Company(r), Mid-West National Life Insurance Company of 
 TennesseeSM and The MEGA Life and Health Insurance Company.SM

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[no subject]

[Alan Ackerman]

Hope this is not a phishing attack. I certainly will not go to a random web 
site posted like this.

On Jul 8, 2011, at 12:47 AM, Rob JACKSON wrote:

 I invite you to visit my first site! It’s important for me!.. 
 http://www.soleholiday.com/sites.friend.php?zyqCID=16iw4
 
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Re: New User Linux on z10 question

[Alan Ackerman]

While 12 LPARs can share one IFL they cannot share any memory. Each LPAR must 
have its own dedicated memory. That's the main reason to run z/VM, to share 
memory. When I asked why Xen did not support System z, I was told that they 
didn't see any point in competing with z/VM.

Sent from my iPod

On Apr 6, 2011, at 15:57, Carsten Otte co...@de.ibm.com wrote:

 Someone told me it is possible to run 12 Linux images on a single IFL
 without the use of z/VM.
 
 Is this true and how?
 
 One thing you could do is define 12 logical partitions (LPAR). You can
 define them IFL only, with shared
 engines. Not that I'm advising to do so
 
 with kind regards
 Carsten Otte
 IBM Linux Technology Center / Boeblingen lab
 --
 omnis enim res, quae dando non deficit, dum habetur et non datur, nondum
 habetur, quomodo habenda est
 
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Re: Documentation: DocBook vs. Lyx vs. LaTex vs. texinfo?

[Alan Ackerman]

 I liked Kedit on MS-DOS quite a bit. Hum, wonder if I can find that old 
 software and run it in DosBox?

I use Kedit for Windows, which works fine on Windows XP, anyway. It's a 
commercial product though, not open source. 

KEDIT for Windows 1.6 is officially supported on Windows XP, Windows Vista, 
and Windows 7.  See http://www.kedit.com/kedit.upgrade.html.

However:

Before ordering KEDIT for Windows, you should be aware of the current status of 
the product:
Mansfield Software Group is no longer actively working on major upgrades of the 
program, and we are in the process of gradually winding the company down.

Because organizations that use KEDIT, as well as individuals who change jobs, 
etc., may have a continuing need for additional KEDIT licenses, we plan to 
continue selling KEDIT through our web site until at least the end of 2011.

We plan to provide e-mail technical support for KEDIT, on a part-time basis, 
until at least June 2012.


See http://www.kedit.com/online_orders.html.

It costs $129 US.
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Re: linux vmstat steal column

[Alan Ackerman]

Why do you want to know what CP is doing? There really isn't any way that I 
know of to find out. You could turn on various traces, and then write code to 
post-process those traces and see what CP is doing. (Or ask IBM to process 
them.) But unfortunately, turning on the traces would probably slow things down 
enough that the results would be quite different from the situation you started 
with. And in the end. what CP is doing might not be very interesting or useful. 
It would certainly require a fair knowledge of CP internals, as well.

A much more useful thing is to ask is what your particular Linux guest is 
waiting for. z/VM has a high speed state sampling component that provides 
this information in the monitor records. I can read this in the ESAMON ESAXACT 
panel. (I leave as an exercise for it to someone else to translate ESAMON to 
other monitors.) You can certainly read CPU wait there. If CPU wait is higher 
than you like for your Linux guest, you can use SHARE settings to make it run 
faster -- but this is  a case of robbing Peter to pay Paul. To lower CPU wait 
for one guest means raising it for other guests. Or you could add additional 
engines to your z/VM system.

See http://linux-sandbox.com/SAMPXACT.HTML for a sample ESAXACT panel.

There are other wait states in the ESAXACT panel -- I/O wait, page wait, etc. 
Some of them that are not as easily understood. If you really have a problem 
with what you see, you may have to contact IBM or your monitor vendor. (I don't 
know any way to get this information without a monitor. You could write your 
own code to post-process monitor records, I suppose. You would learn a lot, but 
it would be rather time-consuming.)

It would be interesting to see how the numbers that Linux reports compare to 
the ones that CP reports -- and to try to explain the differences. I certainly 
don't have time for the exercise, but maybe someone else has done it? I would 
believe the z/VM numbers over the Linux numbers, simply because z/VM knows more 
about what is actually happening than Linux does.


On May 6, 2010, at 11:02 AM, Dean, David (I/S) wrote:

 Is there a way to see what CP is doing during steals?
 
 David M. Dean
 Information Systems
 BlueCross BlueShield Tennnessee
 
 
 
 
 -
 Please see the following link for the BlueCross BlueShield of Tennessee 
 E-mail disclaimer:  http://www.bcbst.com/email_disclaimer.shtm
 
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Re: zLinux entropy

[Alan Ackerman]

OK, I will display my ignorance and ask. What is Entropy in Linux? I know a 
little bit about entropy in the second and third laws of thermodynamics. But I 
don't see what that has to do with Linux.
 
On May 2, 2010, at 10:50 AM, Gregg Levine wrote:

 
 Hello!
 If I remember correctly, this question came up early on. The response
 was that the device drivers which on desktops use keyboards and mice,
 was rewired on System Z to use disk I/O as its creation methods. And
 that by normal disk management we'd end up with the device drivers
 performing as if they were the same everywhere inside Linux.
 
 It's been a while mind.
 -
 Gregg C Levine gregg.drw...@gmail.com
 This signature fought the Time Wars, time and again.

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Re: High interrupt rate

[Alan Ackerman]

I read through this thread. I see information about db2fmcd, which
you say did not cause your problem. I don't see anything in the thread
that tells me about the problem or fix to the kernel.

Can you point me to information about the kernel problem?

Just to confuse things, we have Red Hat, not SuSE.

Thanks everyone for your help!  Based on everything I've read, I concluded
to upgrade the kernel to 2.6.16.60-0.37.  That has solve our issue.  As
for the db2fmcd process, I did not find that running nor in the /etc/inittab,
so no changes were made there.

Alan Ackerman
Alan (dot) Ackerman (at) Bank of America (dot) com

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Stateless Linux for zSeries

[Alan Ackerman]

Someone here says we should not do Linux on zSeries because you cannot do
stateless computing on zSeries. Of course, the first question is

What the heck is stateless computing?

I found some links:

Stateless Linux at http://fedoraproject.org/wiki/StatelessLinux.

Linux on IBM eServer zSeries and S/390: Large Scale Linux Deployment
SG24-6824-00 at http://www.redbooks.ibm.com/abstracts/sg246824.html?Open.

It is from 2002, though. Is there a more recent version?

Has anyone had any experience with building a stateless Linux on zSeries?

Any words of wisdom?

Alan Ackerman
Alan (dot) Ackerman (at) Bank of America (dot) com

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Searching this archive

[Alan Ackerman]

To search the archive of this list I go to
http://www2.marist.edu/htbin/wlvindex?linux-390 and fill in the boxes at
the bottom:

Enter a single keyword that can occur anywhere in item (Currently
limited to items since 1 Jan 1998 )
--

Since 210100

Does anyone have any idea how to get the Since part to work?  No
matter what I put in that box, I always get hits going back to 1999, and
it always takes a long, long time.  If I know someone made a post in
2008, why do I have to search the entire archive?

I tried 2008010100, 20080101, 2008, 08/01/01, 1 Jan 2008, etc. but
nothing made any difference.

Alan Ackerman
Alan (dot) Ackerman (at) Bank of America (dot) com

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NEW TOPIC -- Workload move from z/OS to z/Series Linux

[Alan Ackerman]

My original topic was completely hijacked by disucssion of ZIIPS and
ZAAP so I am going to try again.

Please no more ZIIPs and ZAAPs. (Frankly, my dear, ...)

Has anyone actually moved workload from z/OS to z/Linux?

So far I got only one response, someone who moved TSM from z/OS to z/Linux.

I got some good suggestions. Thank you!

Someone asked what we run on z/OS. I don't know. It seems a bit strange that a
VM system programmer is being asked to do this. I will no doubt find out one of
these days.

But so far I have to report that no one is doing this except one shop.

Alan Ackerman
Alan (dot) Ackerman (at) Bank of America (dot) com

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Workload move from z/OS to z/Linux

[Alan Ackerman]

I have been asked by my management to find workloads that we can move from
z/OS to Linux on zSeries. The idea is to take advantage of the lower prices
IBM charges for IFL engines as opposed to standard engines.

Has anyone done this? If so, what workloads and/or products are good
candidates for such a move?

Thanks!

Alan Ackerman
alan (dot) ackerman (at) bank of america (dot) com

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