Andrew McLaren wrote:
Struth, cobber ... you must be joking.
Unix System Services is certified as a true Unix, as defined by the Open
Group (see http://www.unix.org)
In fact it is no longer true. ;-) AFAIR it was OS/390 2.5 which was
certified. No later release/level/version was re-certified AFAIK. (*)
What's funny, at the time HP-UX was NOT certified. So, OS/390 was UNIX,
but HP-UX wasn't.
Does it make any important effect ? NO! There was (is) plenty of
software products available on "unix platform" *including* HP-UX and
*excluding* USS (to Mr. Badgering: I mean Unix System Services, not
United States Ship).
We can read on the unix.org that it was z/OS 1.2 certified for Unix95
compatibility. So, system from 2001 was certified to Unix95 norm, not
Unix98. Sounds weird.
Linux is a Unix-like operating system ... but so far, *no* Linux
distribution has passed Unix certification. No matter how much the zealots
might squeal, Linux is *not* Unix; not even close.
As A above, the certification is irrelevant to the reality, to the
market position. Millions of IDE disks are made according to *informal*
interface specification. In the old days it caused compatibility
problems (especially WD and Segate drives interconnected), but it was
*de facto* standard.
So, what is important is how popular the platform is. Can I install
Oracle on Linux (on PC) ? Can I do it on USS ? (I can on both Linux and
z/OS). can I have Sybase on USS ? What about other hundreds of
applicaions, already ported to Linux(PC), but unavailable on z/OS USS ?
THIS IS BIG DIFFERENCE.
So, there's a big difference between Unix System Services on z/OS, and Linux
running in an LPAR: o One is Unix; the other is Linux.
As I stated, the name is not important. You could call it Ferrari
(probably after paying some fee), but it is still something not very
popular. With almost no applications available. Contrary to Linux.
In fact the most vitriolic anti-Linux rants I encounter come not from
Microsoft advocates, but from old Unix guys working on SGI and Solaris
systems.
Because Linux is simply another flavor of U*x system, despite of
certificates and brandnames.
BTW: What is *the latest* level of Unix certification? Is it still
Unix03 (note 03 means 2003) ? How many OS'es did get it, how many
*attempted* ?
--
Radoslaw Skorupka
Lodz, Poland
--
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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