> Why is an SSH daemon absolutely fundamental and prerequisite to a CMS
> SCP command to move a PDF from my A-disk to one of my linux servers
for
> serving via Apache?
It's not. I'm working on porting the PuTTY standalone utilities. They
don't require a local SSH server.
> You would have to write the moral equivalent of VSCS, doing LU 2 on
one
> side and LDSF on the other. (VSCS uses *CCS, not LDSF, but let's not
> quibble over details.)
Minus 3d10 sanity for *CCS exposure. (*CCS qualifies as "squamous
crawling horror")
> If you're going to do it this way, just
> > Does anyone know of a program or utility that can generate an SNMP
> > message preferably from a REXX exec?
If you have a C compiler, snmptrap.c from the net-snmp open source
package will compile fairly easily on CMS and can be directed to send
traps or other SNMP datagrams fairly easily.
> Ok, I'll ask. Why wouldn't one attach an OSA card directly to a Linux
> guest?
Ties a guest to a particular piece of hardware (failure point), and
forces the guest to handle all the recovery, ARP management, etc. Having
CP do it for multiple guests is a much more resource efficient approach.
I
> Does z/VM support "SCP/SFTP functionality"?
No. That would require a working SSH. VM implements FTPS.
> Unless anything has changed, SSLSERV is a non-starter if you have more
> than 126 concurrent sessions. Aside from that, it is very stable with
> the latest patches (our VM is 520).
We plan to post a refresh of the SSL Enabler 2 system that will contain
these fixes as soon as time permits.
> An
The next meeting of Hillgang (the Washington DC area VM users group)
will be held on April 24 at CA in Herndon VA.
The meeting will feature Mike Cowlishaw, IBM Fellow and creator of REXX,
as well as technical updates on some new research, and the usual Q&A
free-for-all with VM and Linux expert
> Due to a Linux guest being autologged with a parm passed, the PROFILE
EXEC
> which calls SWAPGEN twice to create 2 VDSKs had something in the
stack.
> This caused the first invocation of SWAPGEN to fail (I believe
because
> SWAPGEN is queueing responses to FORMAT).
(also posted to IBMVM, to cat
> OPTION CONCEAL does *not* cause any CP READ to result in an IPL. It
> will disable PA1, and, when there is a disabled wait, a reIPL.
> Disabling PA1 can be done with CP TERM BRKKEY NONE too
Clearly I'm just getting senile. I'll go away now.
> Would be interesting to hear how Linux and OpenSolaris compare when
deployed on a ZSeries -
> performance, ease of installation/maintenance, any special caveats,
etc.
We'll be discussing some more technical details at WAVV this coming
weekend. 8-)
> What happens if you simply DETACH the VM "console"? Hard to hit PA1 in
> that case. OK, maybe a bit extreme, but it would stop the problem.
Trying that on my test system caused Linux to panic -- having
/dev/console go away is not a friendly act. Probably not desirable.
OpenSolaris tolerated it
> Not really. We had a user logon to a z/Linux guest and hit
> instead of and left it sit there too long. I wanted to prevent
> hitting putting it into CP READ. OPTION CONCEAL might be a too
> powerful hammer.
Sounds like it. OPTION CONCEAL was really designed for CMS machines that
were supp
You need one system with DIRMAINt and the two others with DIRMSAT. Note
a pitfall that I remember from the 9221 days when I impleted it: one of
the DIRMAINT's minidisks should never be linked by anyone, or the
DIRMSAT workers won't run.
Nifty. Glad to know that this is now supported for more th
> I wondered who would be the first to ask that. I does not prevent one
> from going into CP READ. OPTION CONCEAL does add more protection.
OTOH, do you REALLY want a Linux virtual machine to reIPL if you somehow
manage to generate a CP READ? Seems to be going direct to the nuclear
option someho
> At 09:02 PM 4/10/2008, you wrote:
> >What's Normal?
90 degrees from the current nominal vector composition. 8-)
> Just north of Bloomington.
Close enough.
> We are trying to run DirMaint under z/VM 5.3 (RSU 0703) in a multi
lpar
> (IFL) setup. We can get DirMaint to properly do updates on one
system,
> but we can't get it to propagate the updates to the other two systems.
> We are trying to do this communicating with RSCS with no shared spool
or
>
The closest VM user's group to Phoenix that I know of is BayBunch,
usually held in/around SFO.
Of course, you could find 3 or 4 like minded individuals in the local
area and declare yourselves a Movement
> Some Windows apps can run under linux under VM, by using WINE or
BOCHS(?) to name a couple.
WINE requires an Intel system (it just intercepts the Windows API calls,
doesn't do anything about instruction set).
> It is not put on the same server, you are given no indication of how
to
> get to it. The naming conventions are different. Instead, you are
given
> the choice of either DownloadDirector (which does not seem to be
> functional, even though it stores something unusable on your disk and
> says it co
> But you echo my sentiment that it would great to see Bochs and the
kernel
> compiled with z10 optimization and to try Windows again.
Make a z10 available, and we'll be there. 8-)
-- db
The following link makes it sound like you can run Linux and MS
Windows virtual servers on z/VM 5.3. Is this the case? We are looking
for a Main Frame / Enterprise Server that will run x86 based OSs like
Linux and MS Windows.
You cannot run Intel binaries efficiently o
I can, and did, install the NoMachine server code on a Suse machine (not
in z/VM Linux machine) and the client on a Windows machine and I'm
wondering this; if the Server code runs in a Suse machine and the Suse
machine happens to be a z/VM guest, it should work...right?
Not necessarily. If th
Once a z/VM Linux guest is defined and the Linux operating system is
installed and initial users such as a root user and admin user added to
the system what would be the most common way of accessing the Linux
guest?
Ssh over the network is the accepted method.
Could you dial into the Linux
> IBM's Service Director PC did log itself into VM via a 'terminal': PC
> had a cable into a 3172? controller and looked like 'terminal' from
VM's
> viewpoint.
> hence, SERVICE - 0362
If I remember that product correctly, an automated process on an
outboard PC logged in and periodically ran a num
> I am not sure that you were defending VTAM. All of the interesting
> things that you did were done to overcome deficiencies. That seems
quite
> the opposite of a defense.
> Richard Schuh
On the matter of defense of VTAM, one thing that VTAM (and SNA
networking in general) does do well is lend it
> I haven't heard that one before, Neale (maybe because I never worked
in
> a VM-VTAM environment, lucky me), but it is laugh out loud funny.
Right up there with Ole and Lena. 8-)
Worse yet, it's a general SNA issue, not just VM. APPN session setup is
even weirder...
> If the di
> sk
> is not a normal SFS disk, then this is a first IPL at DR and the
profile
> runs a FILESERV GENERATE. When that is finished, I can use the
FILEPOOL
> RELOAD to load the content back into the SFS server.
Hmm. FILEPOOL DUMP and FILEPOOL RELOAD are another set of CMS commands
that n
> Is this really true??? One per *virtual*, not *real*,
> machine? If I were two run two
> copies of Windows on *one* PC, using e.g. VM-Ware,
> I would be required to pay twice???
Depends on what version of Windows. Some versions have restrictions on
where they can legally run, and there are limit
> > Modern Linuxes don't run on p390-class machines anymore, I think.
> > Halfword immediate instructions maybe?
>
> With a proper support contract you could get the microcode that
> supports halfway immediate instructions.
Didn't that require a p390e card or an IS, though? I don't think the MC
> There are also Perl implementations of similar tools, which will run
> with Neale's port of Perl5 for OpenVM.
In fact, here's most of what you need, using the Perl MIME::Tools
package. You'll need to add the code that writes the individual parts
out to files, but the rest of it is a few lines of
ftp://ftp.andrew.cmu.edu/pub/mpack/
munpack is a fairly simple C program that does what you want (eats a
MIME-formatted input file with multiple MIME elements) and writes the
individual elements to files. You'll need to tweak the filename handling
(or use it in a BFS environment), but it should co
> > z/OS doesn't run because it deliberately issues an instruction
subcode
> > that is not implemented on an IFL and then craters in a specified
way
> > when the instruction fails.
> One might infer from your characterization that z/OS added code to
> intentionally crater itself on an IFL, and that
> Systems such as z/OS do not run on an IFL due to
> some differences in the microcode loaded.
z/OS doesn't run because it deliberately issues an instruction subcode
that is not implemented on an IFL and then craters in a specified way
when the instruction fails.
> If somebody wanted to, they co
> There could be virtualization uses
> at some point. My shop is a heavy MS shop and trying to retire
> their Multiprise 3000. It would be nice to pilot the migration
> of some Windows servers onto our lightly loaded VM/ESA system.
Wait for the new hardware, at least if you have anything else us
> Are you saying or asking if has run Bochs on a mainframe? That would
> be a very significant achievement.
Not very. Adam's done it on our MP3K (RIP -- check the archives for a
URL with the screenshot of WinNT beating the living daylights out of our
poor abused H70). Don't recommend it on that h
> > We have been using VM for 20 of our 27 years in business. A
development
> > environment without it has never been considered an option.
Now that's the sort of quote that should appear in IBM marketing
materials.
-- db
> I suppose another way of describing this is that in XMENU from CA
there
> is a SMSG option.
> You put up the screen/menu with the SMSG option - if someone(server)
> sends you an SMSG you wakeup and can take action.
>
> I am looking for a way to do this with VSCREEN.
If you can tolerate the clie
> Almost. I would consider the PIPE that uses the starmon stage to be a
> utility; the stage by itself is simply a tool used to build the
utility.
An interesting thought: when was the last time someone sat down and went
through everything that's on the default S disk? It might be very
interesting/
> Perhaps I've mis-interpretted the term 'Full Volume Minidisk'.
> I format cylinder 0 0, and then give the 'Volume Label'.
> I've understood that to mean I'm making cyl 1 to end available for
linux
> and using cyl 0 for vm. Is that not correct?
Usually, "full volume" minidisks get cyl 0 as well
> >Reformat the volumes with CPFMTXA or ICKDSF CPVOL, add them to your
> >directory management tool (if you have one), and allocate a minidisk
> >from 1-End and give that to the new guests.
> As has been previously mentioned, by you among others, allocating the
> minidisk from (1) to (end-1) would
> We have reached the point in our Linux farm where some of our guests
have
> served their useful purpose.As such I'm going to 'reuse' their
DASD
> for new guests.
> I'm sure I can 'reformat' (cpfmtxa) them as I did originally, but I
> thought I would check on alternatives that others might hav
In light of recent discussions on IBM-MAIN, IBMVM and elsewhere...
This is a fantastic collection of useful documents on Linux and Unix
management and scalability, with a rising amount of content on
virtualization and virtual machines (and even some good papers from
other parts of IBM on the pSer
My note was a response to Barton, not Alan. Alan *has* been civil during
the entire discussion, as usual.
> [assorted snarling]
Take it off list, folks. You can agree to disagree, but a certain level
of civility is expected. This level of confrontation isn't useful or
productive; it scares the newbies, and the advertising level is getting
a bit annoying again.
1) I need to change my VM directory so that I have DEDICATE VOLID
yy rather than DEDICATE (which is what we're doing
now).
One possible preparation: If you consistently do not use the last
cylinder of every volume, you could restore your disks into minidisks on
the VM f
> But, while I understand that, once a UDP message leaves my hands,
there is no guarantee of > delivery, I would think that the RFC would
kick in once the message had actually been sent. > The fact that the
failure was still inside my box, and completely detectable, bothers me.
> Is it really righ
>> Also: If I violate this using Pipe and the UDP stage, why don¹t I get a
>> non-zero return code?
> Because there are no guarantees in the IP protocol specifications that UDP
> packets are ever delivered. UDP was designed to have those semantics, > and
> thus if you use UDP, you're expected
> My point exactly.
FTPSERVE is listed as an authorized virtual machine in the PORTS list in the
TCPIP PROFILE. This permits it to listen on a low port.
The FTP client does not use a low source port, so is not subject to the
restriction.
> My question now is what is the logic behind requiring a user to be in
> TCPIP¹s Obey list to allow it to use certain TCP/IP ports and protocols. It
> isn¹t everything, because things like FTP work, and I think you can play
> fairly fast and loose with higher numbered ports.
Port number < 1024 ar
See the section on configuring the SSL server in the TCPIP Planning and
Configuration manual. You need to update the MAXSESS parm in the
DTCPARMS file for that userid and restart.
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Sulei
> This methodology can give you a scanable tape but it does increase
your
> i/o load and elapsed time quite a bit.
It's manageable if you can put the "scratch" disk out of the line of
processing for production work (ie, different string or controller).
> If you have enough spare DASD,
> you cou
> >From RACF Report Writer:
> 008.066 08:35:02 VMSP ALTMARKA SYS1 093C43C3 0 2 0 JOBID=(
> 00.000 00:00:00)
Hmm. Given that the 093C43C3 is effectively a decimal-to-hex
representation of a 4 octet IPv4 address, have you folks given it any
thought about what to do with IPv6 addresses? T
A suggestion: In place of the DDR on the S disk, use CMSDDR
(downloadable from the VM Download library at www.vm.ibm.com/download),
and dump the volumes to a CMS file with a meaningful name (like
). Then you can use TAPE DUMP or MOVEFILE to move the files to
tape (also gives you SL multivolume tap
> This sounds like a good way to go...what platform are
> you running TSM on? We are running it under AIX.
The ideal method is to run TSM on another Linux guest in the same VM
instance, but then you get to buy FCP-attach tape drives, which is
pretty idiotic, IMHO. If you have to go out onto the r
> I am wondering what would be best approach to define an X Disk in the
SFS
> . I
> mean, normally one puts the files accessible to all users on a mini
disk
> that everybody can access.
>
> How can you do that with SFS?
The way we do it is to define a new filepool called TOOLS:, define a
user cal
> Two wrongs don't make a right
But then there's the story about the two Chinese murderers that provided the
proof that two Wongs can definitely make a wight
Is it Friday yet? 8-)
-- db
Diag(0) returns a lot of interesting stuff, but not the same kinds of
things that sysvar/mvsvar do. In most cases, the information isn't
accessible to users with class G only, and they have no business knowing
about anything outside their virtual machine.
From
Right or off entirely.
Where does the prefix field belong?
On the left?
or
On the right?
> Is it possible to run Solaris Zone on this ported version?
> How about available application for Solaris, I mean compiled binary
> applications, for example Sun JDK.
Can't comment on other vendors plans, and I haven't tested zones yet.
There's no reason why it shouldn't work, but you'd be lots b
we'll be around during the show hours to give guided tours
and answer questions about it.
Stop by the IBM booth if you're in the trade show, and have a look at
it. Bring friends, bosses, Solaris gurus, etc. It's pretty impressive.
-- db
David Boyes
Sine Nomine Associates
> Thanks, likewise our linux guests and VM itself is down.
> I was more curious around the cp allocations for page, spool tdisk
were
> they preserved.
Page is volatile by definition, so backing it up is kinda pointless.
Ditto tdisk. Spool, you need to do with SPXTAPE if you expect it to be
usable
> > You'll love the string handling capabilities.
> Sung to the tune of... "If I only had a (m-)brane"
I'm a frayed knot!
"and there is an embedded cut-down LE preinstalled
that will probably suffice for your use."
The LE supplied with z/VM is the complete LE package. It contains the
run-time libraries for C/C++, COBOL, and PL/I. There is no other version
of LE available or needed for z/VM. This is the prereq that
Let me apologize in advance for asking so many questions related to VM
software licensing. I don't get a clear picture sometimes of what is a
non-chargeable feature and what is.
If you ever completely understand it, please let the rest of us
know...8-). Of course, if you do, the guys in th
On 2/15/08 9:11 AM, "Huegel, Thomas" <[EMAIL PROTECTED]> wrote:
>> > I thought of this thread last night while watching 'Deal or No Deal' (yes I
>> do have a social life)
>
> Braggart.
>
> 8-)
>
> But today a mail about hardware support for LPAR and/or z/VM was
> decorated with a link to this one: http://www.jacknob.com/
Adds a whole new meaning to "scalable".
-- db
Zo ... what Alan iz really zaying iz that IBM, az a company of zmart
people, haz taken a pro-active ztance for diverzity, ezpecially with
rezpect to hardware and zoftware zyztemz ...
-- R;
Viewing of "Dr. Strangelove, Or How I Learned to Stop Worrying and Love
the Bomb" is now obligatory.
I suspect it will also come in pink.
Maybe there will be a high maintenance model.
Cream. Just "cream".
At least one of you knows the story.
-- db
Per your comment on the 3279: Did you ever use any of the original 3279
terminals with the "chicklet" keyboards? We had serial numbers 6, 10 and
12, and the keyboards were horrible; there was ample space between the
keys (both vertically and horizontally) for you to be able to miss a key
entirely.
All facetiousness aside, there's a remarkable amount of ergonomics and
human factors stuff that went into the 3278 that is still valid. Having
that sucker be 2.5-3 ft high just to put the screen at eye level was a
Good Thing. Having a keyboard that gave you really good tactile feedback
was a Good T
> Our IODF is managed by z/OS for all z/OS and z/VM LPARs. Is there a
guide
> anywhere to getting the IODF from our z/OS systems over to z/VM? Had a
> look in the z/VM IO Configuration manual but nothing jumped out.
Most mixed installs (z/OS and VM) let z/OS manage the actual I/O config
(since it
> But the next thing you know you'll be wanting a V-format file! :-)
Nah, VBS! It's about time that CMS moved into the 1970's with OS/VS1,
SVS, and MVS! ;-)
VSAM anyone?... oh, wait, they discontinued that - it might lead to
application development. How about an embedded DB/2?
Ok, the
While I hesitate to correct David, in this case a correction is
warranted.
The proper command is:
CP TERMINAL CONMODE 3270
Perhaps David's suffering Monday Syndrome?
More like "what idiot decided that Solaris kernel configuration files
should be in XML" syndrome.
Mike is (of cours
Also, some non-VM utilities really want CONMODE 3270. If Mike's
suggestion doesn't work, try SET CONMODE 3270 before you IPL 181, eg:
CP SET CONMODE 3270#IPL 181 CLEAR
(the SET CONMODE will cause CMS to choke, so be prepared). Press Enter
after the tape has stopped moving.
_
Umm, not to rain on anyone's parade, here, but something tells me we're
trying to engineer a solution to a problem that might be better solved
elsewhere.
The problem that we're trying to solve (IMHO) is documenting what goes
where. If you start putting text commentary in the CP object directory,
> Well, does not SENDFILE need RSCS? If one of the VMs is on IFL then
you
> need a Special Bid License for RSCS.
SNA wrote a one-link NJE/IP implementation for satellite VM sites that
can connect to RSCS or any other TCPNJE implementation elsewhere
(assuming IP connectivity on port 175). That wou
> What are "Potional Items"? :-) My first guess would be items that
> witches use when concocting a potion.
Eye of newt, toad spawn, TSM/VM... hmm. Is there a pattern here?
> You can do post installation add of products by following the
> "Post Install Load of Potional Items" appendinx in the ZVM
installation
> manual.
D'oh! RTFM, Dave.
Thanks.
-- db
I've just inherited a 4.4 system where I need to add some of the
optional products that were omitted during the original install. The 4.4
program dir doesn't seem to have instructions on how to do that. Does
anyone have a quick cookbook for doing that (I'd really rather not do a
full 2nd level inst
> Any final words of wisdom?
Other than that SSL's dependency on certificates is an enormous PITA?
8-)
Finding and deploying SSL-enabled clients will be your next big battle.
Also, note that the SSLSERV code does NOT use OpenSSL as a base, so it
doesn't know about any of the IBM crypto hardware
Not that I know of, but we put together an appliance to simplify the
Linux part of the setup (free download after a small hoop to jump
through, see http://sinenomine.net/vm/sslenabler), and the IBM
documentation covers most of the other issues you actually care about.
Most of the hard parts are get
"TCP/IP Planning and Configuration" for your release.
From: The IBM z/VM Operating System [mailto:[EMAIL PROTECTED] On
Behalf Of Edward M. Martin
Sent: Thursday, February 07, 2008 3:33 PM
To: IBMVM@LISTSERV.UARK.EDU
Subject: TN3270 sessions
Hello Everyone,
> I am frustrated with commands generating data that fills multiple
screens
> and not have the ability to scroll back and forth in the results
> Thus I thought I'd try something with PIPEs and came up with this:
> [snip]
> This seemed like it would work but the file is empty when xedit opens
it.
T
> Does VMARC come as part of VM
God knows, it (or something like it) should be, but it isn't.
> does it have to be ordered/downloaded fr
> om IBM?
It isn't an IBM product at all, although they do provide download
facilities for it.
The real address of your OSAs has nothing to do with the virtual address
used in the CP directory definition. They don't have to match at all.
On the installation server, the starter system NICDEF is where we
preconfigured it, and the configuration files inside the system all
expect a virtual
> there are a couple of good packages available (for free!) off of the
VM
> download page at:
> http://www.vm.ibm.com/download/packages/
> One is CUA2001 and another is ISO3270. Both are meant to be used from
> Rexx and offer a number of useful features and functions.
> Another good display manages
> Some of you have heard that I actually made the decision to retire
from
> IBM after 34.5 years! (And, this has nothing to do with David's
> clarvoyant append last year! :-)) Today, Jan. 31, is my last day but
I
> couldn't leave without first saying goodbye to all the customers and
> vendors tha
> Sometimes a requirement does not pass Go or collect $200 and is
rejected
> or accepted outright. Of course, business needs change all the time,
so a
> Rejection or Acceptance is no guarantee that it will never see the
light
> of day or that it will be in release n+1.
>
> But remember that our r
> But in the end, you'd like IBM not to reject the requirements, but
> implement them... Making it harder to reject them is a way to
> influence the trade-off, but not the most efficient way.
Yes. The basic tradeoff I'd hope for is that the response at least be
thoughtful enough to tell us why the
After having written up a lot of the requirements discussed here and
submitting them through a recognized user group, I received a number of
rejection notices with a reason of "not in plan".
Could someone at IBM explain this reason a little further? I thought the
point of user requirements was
> On Friday, 01/25/2008 at 05:40 EST, [EMAIL PROTECTED] wrote:
> > the switch IMLed and connectivity came back for AIX and PC servers -
not
> for
> > the mainframe.
> > first question: why doesn't VM TCPIP recover like AIX?
>
> I don't know what "like AIX" means, so I can't answer your question.
> Suddenly I've stopped receiving any posts over the last couple of
days. I
> s
> there a problem?
NOBODY expects ... the Southern Post Suppression!
(sorry. It just had to be said.)
OTOH, it seems like a hack that WAIT does something completely
non-intuitive (and not so useful). Guess I need to write another
requirement for DFSMS/VM to add a "really wait for the mount to finish
before returning" option.
Since WAIT is already used (and probably stuff out there depends on it's
> That is not an option (or, better put, not an option that is
> easy to implement), since the VM/CMS users are not on the same VM as
the
> VSEs from which we are punching the members. Yes, I know that I could
> set up RSCS and, with VM/VTAM, I could accomplish this.
Use the TCPNJE support
> (David - is this one backwards too? Different
> web interface this time)
Looks fine to me, although this week I'm less easily amused. 8-)
-- db
> Quoting "Schuh, Richard" <[EMAIL PROTECTED]>:
> [snip]
For some reason this post came in right justified and reversed right-to-left.
Is this a side-effect of writing in Hebrew mode, Shimon?
If so, it's really cool.
Easily amused today,
-- db
As Richard says, VM dumps SO rarely that buying a tape drive for that
purpose is probably a waste of money. The only thing you absolutely need
a tape drive for is to back up spool files and NSSes such as CMS and
GCS. SPXTAPE can't deal with non-tape devices.
> > problem isn't the need for PVM, it's the difficulty of obtaining PVM
> > in the "recommended" environment. Special bid prereqs for clustering
> > function makes it darn hard to want to use the facilities that are
> > already there.
> Actually, it's not all that hard any more. The Special Bid
> Coming from a shop where we have quarterly enterprise-wide network
outages
> for "maintenance", I find our FICON infrastructure much more reliable.
At least you know where to focus the solvent...8-)
> Hard
> to beat the reliability and simplicity of ISFC.
PVM likes CTCs too.
> I believe the requirement for PVM makes it very unattractive for
> installations to move forward with that next level of CSE.
The problem isn't the need for PVM, it's the difficulty of obtaining PVM
in the "recommended" environment. Special bid prereqs for clustering
function makes it darn hard
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