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Anne Lynn Wheeler l...@garlic.com writes:
some old email indicates that even 9083 hand-picked only came in
marginally faster than 3083 (not even on the order
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John A Pershing Jr persh...@alum.mit.edu writes:
At the time (I'm pretty sure this was with the 308x processor family)
IBM offered special TPF machines for a
John A Pershing Jr persh...@alum.mit.edu writes:
At the time (I'm pretty sure this was with the 308x processor family)
IBM offered special TPF machines for a premium price, or so I was told
when I was working with TPF Development. As I recall, they sorted the
critical chips and constructed
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ACP, One of the Oldest Open Source Apps
http://slashdot.org/story/09/08/21/1121202/ACP-One-of-the-Oldest-Open-Source-Apps
from above:
The Airline Control Program
joa...@swbell.net (John McKown) writes:
I think this is an artifact that the 3270 data stream is really designed to
be half duplex, like the old walkie-talkies. Each side tells the other
that it has control of the transmission. This is especially true in TSO.
Now, I do remember z/VM's or maybe
l...@garlic.com (Anne Lynn Wheeler) writes:
disk controllers. Moving the 3270 controllers directly off the mainframe
channels ... replacing them with HYPERChannel boxes ... which were much
faster and had much lower channel busy for identical 3270 channel
operations ... resulted in increase
John A Pershing Jr persh...@alum.mit.edu writes:
However, it's all a very fuzzy area. E.g., is CP an Operating System,
since it is dependent on CMS for development? Or, is it, perhaps,
merely a Kernel on steroids?
-jp
And, yes, TPF transactions clearly can drive a printer -- e.g., to
John A Pershing Jr persh...@alum.mit.edu writes:
Lynn clearly meant to say one of the internal networks: specifically,
VNET which mostly connected the various VM systems. There were several
other internal networks (e.g., HONE) which were all SNA-based.
re:
John A Pershing Jr persh...@alum.mit.edu writes:
Yeah, and it was a poor implementation, Talk about pathlengths! I
worked with a couple guys in Endicott in the early '90s on a
hyper-optimized implementation of SNA on VM. We left VTAM up there in
its virtual machine, and let it do its PU5
Anne Lynn Wheeler l...@garlic.com writes:
i had to do something similar in the early 80s when I was doing HSDT
project
http://www.garlic.com/~lynn/subnetwork.html#hsdt
re:
http://www.garlic.com/~lynn/2009l.html#44 SNA: conflicting opinions
except, instead of moving it from the virtual
., in the IMS versus
CICS wars), and was generally bemused by the political machinations that
went on within the SNA ARB. I remember bumping into Lynn Wheeler way
back then (I'm talking very early '80s), although I doubt that he
remembers me (I was one of Andy Heller's guys back then).
re:
http
John A Pershing Jr persh...@alum.mit.edu writes:
Hmmm... I never got that memo. Sounds fishy to me, since the US
government didn't own The Internet any more, so wouldn't have been in
a place to mandate such a thing.
re:
http://www.garlic.com/~lynn/2009l.html#43 SNA: conflicting opinions
e99...@jp.ibm.com (Timothy Sipples) writes:
Yes, servers, software, and perhaps even services are dead. Everything is
dead. Thus I suggest unplugging every HP X86, distributed HP/UX, and
NonStop Kernel server you own, now, before it's too late.
there have been a number of articles over the
re:
http://www.garlic.com/~lynn/2009l.html#3 VTAM security issue
http://www.garlic.com/~lynn/2009l.html#7 VTAM security issue
http://www.garlic.com/~lynn/2009l.html#11 VTAM security issue
http://www.garlic.com/~lynn/2009l.html#13 SNA: conflicting opinions
a network layer with feature like ARP ...
re:
http://www.garlic.com/~lynn/2009l.html#13 SNA: conflicting opinions
http://www.garlic.com/~lynn/2009l.html#15 SNA: conflicting opinions
part of the terminal communication heritage was things like LU6.2
having 160,000 instruction pathlength and 15 buffer copies thru VTAM.
The execution of
patrick.oke...@wamu.net (Patrick O'Keefe) writes:
Well, the N is Network, not Networking, but I don't think that
clarifies anything. Lynn apparently has some very specific defibition
of Networking in mind. His comment may be accurate (His comments
usually are.) but I'm not sure what that
re:
http://www.garlic.com/~lynn/2009l.html#3 VTAM security issue
http://www.garlic.com/~lynn/2009l.html#7 VTAM security issue
the communication division did provide the basis for rapid uptake of
personal computers via terminal (communication) emulation. A customer
could get an ibm/pc with
chrisma...@belgacom.net (Chris Mason) writes:
Probably the architects had one in mind to be rolled out eventually. After
all,
OSI was supposed to take over the world - starting with the governments.[2]
Incidentally, you are guilty of violating the ISO model here. A layer is
placed
chrisma...@belgacom.net (Chris Mason) writes:
There is no universal SNA network - as some in IBM imagined could be
created in the early '80s - and so the access to these supposedly
vulnerable VTAM systems is going to be via the universal IP
network.[1] Thus one of the protocols whereby the IP
gerh...@valley.net (Gerhard Postpischil) writes:
It simulates anything from a S/370 to a modern machine. However,
modern software requires a license and the chance of getting that are
essentially nil (unless you're working for IBM?). The web has various
sites that provide downloads for legal
stee...@tabcorp.com.au (Steele, Phil) writes:
Well no-one has answered, so I had better!
The 3345 was really a 3350 that was re-partitioned so that each
3350 spindle looked like four 3340-70MB spindles/disks. It was a cheaper
way of getting (maybe?slower) 3340s if you could not handle
shmuel+ibm-m...@patriot.net (Shmuel Metz , Seymour J.) writes:
Except for TSO. Also, SVS dropped some features of OS/360 MVT, e.g., GJP,
RJE, and reimplimented others, e.g., loading transient SVC routines.
at various times, there were various degrees about killing off both
cp67 and vm370
paulgboul...@aim.com (Paul Gilmartin) writes:
But, I was envisioning that for performance and sharability
it might be desirable to keep it in LPA. Sort of like a
VM DisContiguous Shared Segment.
HONE was online vm370 based system that grew into (the internal IBM)
world-wide sales marketing
timothy.sipp...@us.ibm.com (Timothy Sipples) writes:
Many people date UNIX's origins to Multics. Development of both Multics
and MVT started in 1964, so they are contemporaries of one another by that
reasonable measure.
re:
http://www.garlic.com/~lynn/2009k.html#52 Hercules; more information
l...@garlic.com (Anne Lynn Wheeler) writes:
a couple recent posts in a.f.c. ng ... in a fairly active thread
(thread even includes post by one of the people that originated
unix)
re:
http://www.garlic.com/~lynn/2009k.html#52 Hercules; more information requested.
http://www.garlic.com/~lynn
timothy.sipp...@us.ibm.com (Timothy Sipples) writes:
Many people date UNIX's origins to Multics. Development of both Multics
and MVT started in 1964, so they are contemporaries of one another by that
reasonable measure.
But... does anybody really care? Seriously? :-)
re:
paulgboul...@aim.com (Paul Gilmartin) writes:
No, but it's hard to call z/OS modern while it's hobbling along
with the equivalent of the model T engine. Too much legacy baggage.
Retain RM=31 and RM=24 for code requiring it, but also provide
RM=64 for newer code. I believe users are already
for the fun of it ... a recent post in a.f.c. ng
http://www.garlic.com/~lynn/2009k.html#26 A Complete History Of Mainframe
Computing
referencing this article about why 360s came out as EBCDIC machines
rather than ASCII
EBCDIC and the P-BIT (The Biggest Computer Goof Ever)
part of similar thread from (linkedin) mainframe discussion
Oracle Database Abandons z/OS
http://www.longpelaexpertise.com.au/ezine/Oracle_zOS.html
old post referencing making Oracle available on 370
http://www.garlic.com/~lynn/2004o.html#40
initially only on vm/cms ... same platform used for
cfmpub...@ns.sympatico.ca (Clark Morris) writes:
z/VM also supports FBA and SCSI devices. It would be great if z/OS
could learn to do that for all FBA type data sets (VSAM, PDSE, HFS,
zFS, linear and maybe a couple of others). They might have to sign a
non-disclosure agreement but I think
rfocht...@ync.net (Rick Fochtman) writes:
I seem to recall support for both 3370 and 3375 on MVS. I can't
remember exactly when. IIRC, one was a CKD device and the other was a
FBA device. Don't ask me which was which.
re:
http://www.garlic.com/~lynn/2009k.html#43 Z/VM support for FBA devices
wkkel...@optonline.net (W. Kevin Kelley) writes:
Nope, at least not the ones that MVS supported. I vaguely recall some 3345's
that might have been FBA and we didn't support? That was a long time ago
and my memory is getting fuzzy...
re:
http://www.garlic.com/~lynn/2009k.html#43 Z/VM support
sebast...@welton.de (Sebastian Welton) writes:
There is an article on the 2600 archives (and replicated elsewhere) on how
to break into VM/370 systems but really requires you to know the maint
password. I have (bows head in shame) 'hacked' into a system. This was open
to the internet and was
bruce.richard...@arcelormittal.com (Bruce Richardson) writes:
Getting back on target
Doesn't anyone remember the Christmas Tree viral worm?
As I recall, it was an e-mail with an attachment; the reader
was instructed to save the attachment as a EXEC, and run
it to see the Christmas
ee...@us.ibm.com (John Eells) writes:
We prefer the phrase bullet resistant. ;-) (Sorry, I couldn't resist.)
misc. past posts mentioning getting to play disk enginneer in bldg.
14 15
http://www.garlic.com/~lynn/subtopic.html#disk
we i 1st started playing they had all these test cells
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ba...@mxg.com (Barry Merrill) writes:
You reminded me that back in 1976 when I had just joined
Sun Oil, and we were a big IBM datacenter, I requested a
new feature in our 3270s that
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Tom Longfellow tlongfel...@verizon.net writes:
This sounds like an entirely different situation. The thing being
replaced in your picture is the communications, not the database
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bshan...@rocketsoftware.com (Bob Shannon) writes:
IBM used to give huge discounts to universities. About 15-20 or so
years ago they did away with the discounts
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frank.swarbr...@efirstbank.com (Frank Swarbrick) writes:
I can think of several ways that JCL could be improved to help me
here. Unfortunately I get the feeling no one at IBM is
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Anne Lynn Wheeler l...@garlic.com writes:
somewhat related recent post (mentions that long ago and far away my
wife had been con'ed into going to POK to be in charge of mainframe
zosw...@gmail.com (P S) writes:
Actually HONE was Hands-On Network Environment, not Experience. At
least, that's what I was always told, and Google seems to support it,
albeit only 41 to 13.
re:
http://www.garlic.com/~lynn/2009i.html#26 Why are z/OS people reluctant to use
z/OS UNIX?
yes,
re:
http://www.garlic.com/~lynn/2009i.html#26 Why are z/OS people reluctant to use
z/OS UNIX?
http://www.garlic.com/~lynn/2009i.html#35 SEs History Lessons
Early on, the HONE cp67 systems, deployed csc/vm cp67 (large body
internal/csc changes) with a subset of the H system updates.
Before 370
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aguto...@ford.com (Arthur Gutowski) writes:
Guess I drank the kool-aid. IBM hired me in at the time they were jumping
into the services business (another unmitigated disaster, IMHO,
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nitz-...@gmx.net (Barbara Nitz) writes:
My point of contention is that most of the 'programmers' (That's why I called
that 'clicking') don't care that their code is poor. My neighbour
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bjpafr...@hotmail.com (Brendan Friel) writes:
It's interesting to link (trade) settlements to overnight batch COBOL.
That's not really an option(sic) in today's trading world - you
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st...@trainersfriend.com (Steve Comstock) writes:
That's the other windmill I'm tilting at these days:
the benefits of insourcing - using local people for
local work. Working to once
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oldti...@wanadoo.fr (Bruno Sugliani) writes:
Larry Elison :
I make fun of a lot of other databases—all other databases, in fact, except
the mainframe version
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jever...@us.ibm.com (Jodi Everdon) writes:
Did you happen to read the last issue of z/OS Hot Topics? I think you'll be
pleasantly surprised by the story of page
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TrailingEdgeTechnologies bbreyno...@aol.com writes:
Another use for the 1mm-hole form factor for cards would have been a
step between the original 80-column and
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clark.k...@asg.com (Clark Kidd) writes:
If a particular column didn't get punched correctly, you could always
patch the card by putting it back in the keypunch
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eamacn...@yahoo.ca (Ted MacNEIL) writes:
We used to joke about how IBM found a way to get rid of all their olld
96-column stock. In Canada (I don't know if
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ibm-m...@tpg.com.au (Shane) writes:
So long as it wasn't an object deck.
Very early on I got into the habit of diagonally marking (the edge of)
decks with a
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scottyt.har...@gmail.com (Scott T. Harder) writes:
VBG. Too funny. I've heard many stories about card decks being
dropped every which-way, but what did you
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rfocht...@ync.net (Rick Fochtman) writes:
Consider, if you will, the sweet innocence of childhood. ;-) How many
of us remember the days of punched cards, either
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eamacn...@yahoo.ca (Ted MacNEIL) writes:
I remember two models -- KP-26 KP-29.
I had my own (as probably did others) card 'programmed' for certain stops, so
I
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patrick.oke...@wamu.net (Patrick O'Keefe) writes:
But getting back to the memory lane slide show, I'm a bit surprised
the 650 is not included. It may not have
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scottyt.har...@gmail.com (Scott T. Harder) writes:
I rather think that they (client/server model... we're getting rid
of the mainframe) tried that in the 90's.
there were lots of
Anne Lynn Wheeler l...@garlic.com writes:
overnight batch window. The problem was that the parallel distribution
object-oriented technologies introduced a factor of 100 times (two
orders of magnitude) increase in processing overhead ... totally
swamping any anticipated throughput benefits
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scottyt.har...@gmail.com (Scott T. Harder) writes:
Very cool. Funny, though... I remember first logging onto TSO on what
I thought was a 3082 (although I didn't know what even DASD
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re:
http://www.garlic.com/~lynn/2009g.html#66 Mainframe articles
http://www.garlic.com/~lynn/2009g.html#67 Mainframe articles
http://www.garlic.com/~lynn/2009g.html#68 IT Infrastructure
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patrick.falco...@verizon.net (Patrick Falcone) writes:
Correction they were 3081K 32's, one of the other posts jolted my
memory back into focus. Sorry for the drift.
re:
re:
http://www.garlic.com/~lynn/2009g.html#66 Mainframe articles
http://www.garlic.com/~lynn/2009g.html#67 Mainframe articles
http://www.garlic.com/~lynn/2009g.html#68 IT Infrastructure Slideshow: The IBM
Mainframe: 50 Years of Big Iron Innovation
http://www.garlic.com/~lynn/2009g.html#70
steve_thomp...@stercomm.com (Thompson, Steve) writes:
SNIP
3033 and 3081 in 370 mode were 24bit (16mbyte) addressing (real
virtual).
SNIPPAGE
Didn't the 30xx machines have 26 bit addressing (the 3033 mode) when
operating in S/370 mode? Starting with the 3033MP?
re:
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p...@voltage.com (Phil Smith) writes:
Why can't you debug a production issue, if you're using Format-Preserving
Encryption? Does the application need the real data? Most do not. Or
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patrick.oke...@wamu.net (Patrick O'Keefe) writes:
I haven't thought about Lisp for about 40 years.
Just out of curiosity, is it actually used outside of academia?
Is it used at all
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patrick.oke...@wamu.net (Patrick O'Keefe) writes:
I think that logic may not apply. It all depends on how the emulation
works. The wasted track space may not take any space on the
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m42tom-ibmm...@yahoo.com (Tom Marchant) writes:
Indeed, one could build a 3390 with only one recording surface and an arm
that has 15 heads.
IAC, the emulation of such a large number
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Christopher Keller cwkel...@gmx.net writes:
Isn't one of the advantages of cloud computing the avoidance of over-
or underprovisioning? e.g. Above the clouds: A Berkeley View of Cloud
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et...@tulsagrammer.com (Eric Chevalier) writes:
This morning's Wall Street Journal is reporting that IBM is in talks
to buy Sun Microsystems for as much as $6.5 billion. A deal could
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donb...@gmail.com (Don Williams) writes:
From a practical view point, I disagree. I believe that a usage note in the
POP
can imply a programming interface is likely to exist. Here’s
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wfarr...@us.ibm.com (Walt Farrell) writes:
There are many hardware architectural features described in the PoP that
z/OS does not consider programming interfaces for programs running
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bi...@mainstar.com (Bill Fairchild) writes:
I should have checked Wiki_knows_all first.
http://en.wikipedia.org/wiki/BUNCH
But there was a connection between
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eamacn...@yahoo.ca (Ted MacNEIL) writes:
I believe they stopped after 3350-compatible drives. We were one of
the last users in the Greater Toronto Area (Ontario
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peter.far...@broadridge.com (Farley, Peter x23353) writes:
CDC certainly made processors. DOD used CDC 6600's extensively for
defense planning in the late 60's
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patrick.oke...@wamu.net (Patrick O'Keefe) writes:
I don't know what the C was for, but CDC definitely made
computers in the 1960s. There was a least a 6000
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r.skoru...@bremultibank.com.pl (R.S.) writes:
I don't believe! I know pure H2O is dielectric, but it is virtually
impossible to keep it so clean especially in
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david.jou...@53.com (Jousma, David) writes:
Without commenting on the actual topic, I can just hear the folks in the
Intel space claim that we dino's are now copying their technology
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jayare...@hotmail.com (J R) writes:
As Ted mentioned, Canadian banks use it. It is also used extensively
by European banks and those in the Antipodes.
What do these banks have
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joa...@swbell.net (John McKown) writes:
Single word: greed. On the part of management and the investors. To the
nether world with the future, give me an immediate payoff. That explains
antonbr...@gmail.com (Anton Britz) writes:
Your first article was created by KPMG , an audit, tax and advisory firm in
the
USA.. that we all can trust, such as ACCENTURE... registered in BERMUDA so
that they pay no taxes in the USA legally.
re:
http://www.garlic.com/~lynn/2009b.html#11
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I'm looking at scanning some old documents from the 70s ... and looking
at getting them put up in the ibm section:
http://bitsavers.org/pdf/ibm/
on bitsavers:
http://bitsavers.org/
I'm
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wfarr...@us.ibm.com (Walt Farrell) writes:
This seems rather obvious, so perhaps you've already tried it or
rejected it for some reason, but the SHARE web page at
http://www.share.org
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timothy.sipp...@us.ibm.com (Timothy Sipples) writes:
And it's a little tough to pin down when SMP began, because engineers
are going to quibble about the
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tz...@attglobal.net (Tony Harminc) writes:
In particular, the 65MP did not have a programmable prefix register to
relocate low storage for each CPU the way S/370
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rfocht...@ync.net (Rick Fochtman) writes:
Actually, I think that preemptive dispatching and timer pops existed
long before MVS. Can we say Time Slicing ??
CTSS
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rfocht...@ync.net (Rick Fochtman) writes:
I could sure use a copy of that BPS Loader source code, if anyone has
it and is willing to share..
re:
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rfocht...@ync.net (Rick Fochtman) writes:
I could sure use a copy of that BPS Loader source code, if anyone has
it and is willing to share..
re:
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re:
http://www.garlic.com/~lynn/2008s.html#51 Computer History Museum
http://www.garlic.com/~lynn/2008s.html#52 Computer History Museum
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rfocht...@ync.net (Rick Fochtman) writes:
I don't remember all the mods we made at NCSS, but one change that made
a BIG difference on the simplex and duplex
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thomas.kel...@commercebank.com (Kelman, Tom) writes:
That is interesting. I would like to visit the museum some day. Here's
descriptions from a couple of the
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rfocht...@ync.net (Rick Fochtman) writes:
And if you opened the covers of the old 2880 Block Multiplexor Channel
box, you found a downsized version of the 360/44 front panel. Fancy
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rfocht...@ync.net (Rick Fochtman) writes:
We called them Gap Records at NCSS and they worked very well for
paging on 2305 devices. We'd use the first exposure
r.skoru...@bremultibank.com.pl (R.S.) writes:
I'm talking about *practice*. BTDT. Again: well signed cables are the key.
re:
http://www.garlic.com/~lynn/2008r.html#71 Curiousity: largest parallel sysplex
around?
http://www.garlic.com/~lynn/2008r.html#72 Curiousity: largest parallel sysplex
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joa...@swbell.net (John McKown) writes:
Thanks for the info. The reason that I ask is a bit weird. I'm on a list
similar to this one, but for the iSeries
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scott.r...@joann.com (Scott Rowe) writes:
Well, I've never heard of a large PowerPC server, I think you are referring
to POWER.
re:
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ibmm...@intergate.com (Arthur T.) writes:
It's been a long time since IBM went OCO. When they did, didn't they
promise better documentation to make up for the
[EMAIL PROTECTED] (John McKown) writes:
On the current machines, there are two classes of instructions. The
simple instructions (like SR and LA and so forth) are hard
wired. The more difficult instructions (such as MVCLE) are
millicoded. So, if you can replace a millicoded instruction with a
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[EMAIL PROTECTED] (John McKown) writes:
This is strictly for z/Linux use. I really doubt that you can connect
mainframe DASD to your AIX system. The interface is different. The
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[EMAIL PROTECTED] (Walt Farrell) writes:
But personally, I would not call it an operating system (I would call it a
hypervisor) nor would I claim it as EAL6+.
above EAL4 gets kind of
[EMAIL PROTECTED] (Walt Farrell) writes:
I'll agree that things are generally different above EAL4, but in my
experience typically because the mutual recognition agreements apply only at
EAL4 and lower. And because (I think) in the US you may need the NSA
involved in evaluations at EAL5 and
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