I don't think so. Nevermind, let's drop out interpretations.
IMHO 3380 is still in use, in most cases generally because of staff lazyness/lack of comptence.
Yes, I mean it.
AFAIR 3390 was introduced in 1990. 17 years ago. Enough time to perform
migration.
All the shops I know use 3380 without any real reason. For example they use
Adabas, however other shops, running the same application migrated to 3390
years ago. Another examples: JES2 SPOOL, RACF db. No comments.
Of course my experience is limited, that's why I didn't say "in every case";
YMMV
Regards
--
Radoslaw Skorupka
Lodz, Poland
Joel C. Ewing wrote:
I think you misinterpreted Tom's remarks.
He wasn't disputing that 3380 emulation was in use, only the logical
inconsistency of your use of the existence of 3380 emulation as an
argument supporting the ability of installations to easily handle some
new DASD architecture.
3380 emulation is most likely in use precisely because transitioning to
the 3390 DASD architecture was not trivial and involved costs the
installation wished to avoid. Add a new DASD architecture to the
picture, and those running 3380 emulation today will probably still be
wanting to run 3380 emulation on the new DASD.
If you are emulating old DASD architecture on new architecture hardware,
you haven't yet migrated applications to the new architecture - and you
run the risk that at some point the latest hardware or Operating System
may cease to support the older architecture. That installations choose
to run these risks is an indication of the difficulty of utilizing new
DASD architecture, not an indication of the ease of supporting multiple
DASD architectures.
R.S. wrote:
Tom Marchant wrote:
[...]
I disagree. Completely. Mainframe users had to do with different
track sizes, some dataceneters still have 3380 emulation.
It sounds like you are disagreeing with yourself here. Why do you
think some data centers still use 3380 emulation?
I don't see logic conflict here. As I said, many people worked in
datacenters where various geometries were in use. I also wrote there
are shops still using 3380 geometry. Why do I think so ? Because I was
in one of them about week ago. It's still on the place. I know few
other shops using 3380. I don't *think* they do it, I *know* it.
--
BRE Bank SA
ul. Senatorska 18
00-950 Warszawa
www.brebank.pl
Sd Rejonowy dla m. st. Warszawy
XII Wydzia Gospodarczy Krajowego Rejestru Sdowego,
nr rejestru przedsibiorców KRS 0000025237
NIP: 526-021-50-88
Wedug stanu na dzie 01.01.2007 r. kapita zakadowy BRE Banku SA (w caoci
opacony) wynosi 118.064.140 z. W zwizku z realizacj warunkowego
podwyszenia kapitau zakadowego, na podstawie uchwa XVI WZ z dnia 21.05.2003
r., kapita zakadowy BRE Banku SA moe ulec podwyszeniu do kwoty 118.760.528
z. Akcje w podwyszonym kapitale zakadowym bd w caoci opacone.
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