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HP-UX Unix on PA-RISC

HP-UX 11i

HP-UX 11.00

HP-UX 10

HP-UX 9

HP-UX 8

Older

References

Overview

HP-UX is the commercial Unix operating system from HP for PA-RISC workstations and servers.
First developed by HP during the 1980s for early PA-RISC servers and predecessors, the last HP-UX version 11i from the 2000s runs on most PA-RISC 1.1 and 2.0 and Itanium 2 computers from HP.

HP-UX was the standard Unix system for HP 9000 computers in the Unix history of PA-RISC.
Most PA-RISC computers were shipped with Unix and geared towards technical and business applications, like CAD, CAM, analysis and data processing.

© HP 1980s

HP-UX started as server operating system with separate releases for PA-RISC workstations until the popular
HP-UX 10.20 in 1996.
Starting with HP-UX 11.00, there were unified releases for servers and workstations.
HP-UX 11 was the first 64-bit HP Unix with support for 64-bit PA-8x00 processors.

Early HP-UX releases up to 9.0 were strongly based on BSD Unix and close to HPBSD.
From version 10, HP-UX became close to System V Unix (SVR4), a trend of the 1990s.
Many earlier HP-UX Unix versions preceded the internet age with scant documentation left and are rather unknown today: from the first PA-RISC HP-UX 1.0 in 1986 to HP-UX 9 in 1992.

PA-RISC OS support, █ - full support, ▒ - partial support

OS

a.k.a.

First

700

800

A

B

C

D

E

FGHI

J

K

L

N

R

rp

rx

SD

T

V

zx/i

HP-UX 11.31

11i v3

2007

█

█

█

█

HP-UX 11.23

11i v2

2003

▒

█

█

█

█

█

▒

HP-UX 11.20

11i v1.5

2001

▒

▒

█

█

█

█

█

▒

█

█

█

█

█

█

█

█

█

█

█

HP-UX 11.11

11i

2000

▒

▒

█

█

█

█

█

▒

█

█

█

█

█

█

█

█

█

HP-UX 11.00

1997

▒

█

█

█

█

█

█

█

█

█

▒

▒

█

█

█

HP-UX 10.20

10.30

1996

█

█

▒

▒

█

█

█

█

█

█

█

█

HP-UX 10.01

10.10

1995

█

█

▒

█

█

▒

▒

HP-UX 9

.00-09

1992

█

█

▒

▒

█

█

▒

▒

▒

HP-UX 8

.01-08

1991

▒

▒

HP-UX 7

7.03

1990

▒

HP-UX 3

1988

▒

HP-UX 2

1987

▒

HP-UX 1

1986

▒

HP-UX 11i

HP-UX 11i is the last Unix from HP for its PA-RISC and Itanium computers, first released in 2000 and developed into multiple different streams and operating systems over the years.
Versioning got slightly complex.

from archive.org

11i v3 (11.31): Itanium 2 and some 64-bit PA-RISC

11i v2 (11.23): 64-bit PA-RISC and Itanium 2

11i v1.5/v1.6 (11.20/22): Itanium and Itanium 2

11i v1 (11.11): 32-bit and 64-bit PA-RISC

HP distinguished operating environments (OEs) with different functionalities: Minimal Technical Computing Operating Environment (TCOE) for workstations and servers, and the Internet, Enterprise and Mission Critical OEs for servers.

HP-UX 11i was called 11.11 at time of first release, before HP started another of its many rebrands of Unix products.

HP-UX 11i v3 (11.31)

HP-UX 11i v3 was released in 2007 and supported only 64-bit PA-RISC servers and Itanium 2 servers.
Support for many other older servers was dropped, including some of (half-modern) rp server family.

HP-UX 11i v3 (11.31) supported systems

Class

Computers

N-Class

N4000, N4000

rp

rp3410, rp3440,
rp4410, rp4440,
rp7400, rp7405, rp7410
rp7420, rp7440, rp8400, rp8420, rp8440

rx

rx1600, rx1620, rx2600, rx2620, rx2660
rx3600, rx4640, rx5670, rx6600, rx7620, rx7640, rx8620, rx8640

Superdome

Both PA-RISC and Itanium

HP-UX 11i v2 (11.23)

HP-UX 11i v2 was released in 2005 and supported 64-bit PA-RISC rp servers, Itanium 2 servers and workstations.
Support for 32-bit PA-RISC 1.1 systems was dropped, along with many lettered 64-bit PA-RISC 2.0 computers (B-Class, C-Class).

HP-UX 11i v2 (11.23) supported systems

Class

Computers

A-Class

A400, A500

L-Class

L1000, L2000, L1500, L3000

N-Class

N4000, N4000

rp

rp2400, rp2430, rp2405, rp2450, rp2470,
rp3410, rp3440,
rp4410, rp4440,
rp5400, rp5450, rp5430, rp5470,

rp7400, rp7405, rp7410
rp7420, rp7440, rp8400, rp8420, rp8440

rx

rx1600, rx1620, rx2600, rx2620, rx2660
rx3600, rx4610 (not sure), rx4640, rx5670, rx6600, rx7620, rx7640, rx8620, rx8640

Superdome

Both PA-RISC and Itanium

zx

zx2000, zx6000
(v2 May 2005 might be last)

HP-UX 11i v1.5 (11.20) and v1.6 (11.22)

HP-UX 11i v1.5 and v1.6 were first HP-UX versions for Itanium, released in 2001-2002 for first generation HP Itanium and early Itanium 2 workstations and servers.
Itanium and PA-RISC support was later merged into unified 11i v2 HP-UX.

HP-UX 11i v1.5 and v1.6 supported systems
List of supported systems might be incomplete.

Class

11i v1.5

11i v1.6

i-Class

i2000

i2000

rx

rx4610

rx2600, rx5670

zx

zx2000, zx6000

other

Probably many other Itanium systems supported

The original HP Itanium i2000 workstations were apparently not supported in HP-UX versions newer than v1.6, thus had a short shelf-life of operating system support.

HP-UX 11i v1 (11.11)

The original HP-UX 11i release from 2000 supports most 64-bit PA-RISC systems and many
older 32-bit servers and workstations. Some even older 32-bit PA-RISC systems were
officially unsupported but could be made to work with some releases.

HP-UX 11i 11.11 supported systems

Class

Computers

700s

712,
some 715,
some 725,

740s VME

743i,
744,
745,
748i,
748

A-Class

A180, A180C,
A400, A500

B-Class

B132L, B160L, B132L+, B180L+, B1000, B2000, B2600

C-Class

C100, C110,C132L, C160L,
C160, C180, C200, C240, C360,
C3000, C3600, C3700, C3750
C8000

D-Class

D210, D220, D230, D250, D270, D280, D310, D320, D330, D350, D370, D380, D390

E-Class

E25, E35, E45, E55

J-Class

J200, J210, J280, J282, J2240, J5000, J5600,
J6000, J6700, J6750,
J7000

K-Class

K100, K200, K210, K220, K250, K260, K370, K380, K400, K410, K420, K450, K460, K570, K580

L-Class

L1000, L2000, L1500, L3000

N-Class

N4000, N4000

R-Class

R380, R390

rp

rp2400, rp2430, rp2405, rp2450, rp2470,
rp3410, rp3440,
rp4410, rp4440,
rp5400, rp5450, rp5430, rp5470,
rp7400, rp7405, rp7410
rp7420, rp7440, rp8400, rp8420, rp8440

Superdome

PA-RISC models

T-Class

T500, T520, T600

V-Class

V2200, V2250, V2500, V2600

Portables

RDI PrecisionBook, SAIC Galaxy 1100

↑ up

HP-UX 11.00

Version 11.00 of HP-UX was the first 64-bit HP Unix, released in 1997.
It ran on 32-bit and 64-bit PA-RISC computers and supported most lettered servers and workstations plus some older 700s and 800s systems.
HP-UX 11.00 can run in either 64-bit or 32-bit mode on systems with 64-bit PA-RISC 2.0 processors or in 32-bit mode on PA-RISC 1.1 processors.
There was scant support for workstations in the original 1997 release developed by the HP Server division – which was added later with extensions to the OS.

Full 64-bit computing was defined as having a 64-bit CPU with 64-bit registers and data paths, 64-bit memory addressing, 64-bit Direct Memory Access, and a 64-bit kernel, required for high-performance, resource-intensive applications, and applications such as databases and OLTP that can use the scalability and memory addressing of 64-bit.
HP-UX 11.0 was the first to support it on PA-RISC computers.

Features of HP-UX 11.00

Support for 64-bit computers in full 64-bit mode

POSIX kernel threads

Message passing implementation (MPI)

Performance optimized page size (POPS)

Common internet file system (CIFS)

Fibre channel for storage

NFS v3.0

Java 2.0

Motif, X11R6 and CDE

In a similar vain to 32-bit HP-UX 10.20, there were Extensions Packs (EP) and Additional Core Enhancements (ACEs) that added support for hardware in HP-UX 11.
Some 64-bit systems were only supported in 32-bit mode in original 11.00 from 1997, with 64-bit support added later.

ACE 9911: Support for full 3D graphics in 64-bit (?) and proper 2D and 3D graphics support for most Visualize adapters on workstations added; (probably) B1000, B2000, C3000, C3600, J5000, J5600, J6000, J7000 workstations added; A-Class A400 and A500 servers added (or later); V2600 added (unsure); probably L1000/L2000 added

EP 9905: Unsure what was added, probably N4000 servers and first support for IA64 CEC chipset – HP Stretch. Still no 3D workstations graphics supported.

EP 9808:
64-bit support for C160, C180, C200, C240, C360, J280, J282, J2240;
V-Class

11.00: Graphics support in the original 11.00 release was severely limited. Also, many EISA adapters and older CRX-type graphics were not supported anymore in 11.00 or only in 32-bit versions

HP-UX 11.0 supported many 64-bit workstations and most 32-bit PA-RISC workstations with at least PA-7100LC CPUs.
Support for HP 9000 servers was generally solid with only very old 1980s servers unsupported that did not have at least a PA-7000.

HP-UX 11.00 supported systems with latest ACE and EP

Class

Computers

700s

712,
some 715,
some 725,

740s VME

743i,
744,
745,
748i,
748

A-Class

A180, A180C,
A400, A500

B-Class

B132L, B160L, B132L+, B180L+, B1000, B2000, B2600

C-Class

C100, C110,C132L, C160L,
C160, C180, C200, C240, C360,
C3000, C3600

D-Class

D210, D220, D230, D250, D270, D280, D310, D320, D330, D350, D370, D380, D390

E-Class

E25, E35, E45, E55

F/G/H/I-Class

F10, F20, H20, F30, G30/H30, I30, G40/H40, I40, G50/H50, I50, G60/H60, I60, G70/H70, I70

J-Class

J200, J210, J280, J282, J2240, J5000, J5600,
J6000,
J7000

K-Class

K100, K200, K210, K220, K250, K260, K370, K380, K400, K410, K420, K450, K460, K570, K580

L-Class

L1000, L2000, L1500, L3000 (unsure)

N-Class

N4000-36, N4000-44

R-Class

R380, R390

rp

rp2400, rp2430, rp2450, rp2470,
rp5400, rp5450, rp5430, rp5470 (unsure),
rp7400, rp7410 (unsure)

T-Class

T500, T520, T600

V-Class

V2200, V2250, V2500, V2600

Portables

RDI PrecisionBook, SAIC Galaxy 1100

Not supported

PA-7000/7100-based 705, 710,
715,
720, 730, 750,
725,
735, 755

↑ up

HP-UX 10

©1996 HP, from archive.org

HP-UX 10 was the HP Unix with best performance and support for 32-bit PA-RISC workstations and servers.
A variety of versions were released by HP between 1995 and 1997, with a short shelf-life however due to fears of possible Y2K bugs.
HP offered an upgrade path to HP-UX 11 and exchange CDs for affected systems.

HP-UX 10 in its various guises supported almost all 32-bit 700 Series workstations, most lettered systems and most older 800 Series servers.
10.01 was the last HP-UX to officially support even older PA-RISC 1.0 computers.

HP-UX 10.20

HP-UX 10.20 was released in August 1996 as the HP Unix that supported almost all 32-bit PA-RISC workstations and servers.
For HP-UX, 10.20 was pretty fast on supported machines with at least 64 MB RAM.
It was discontinued by HP in 2002 and obsoleted in 2003 after shipping multiple releases.

© Hewlett Packard 2002

Features of HP-UX 10.20:

Support for 64-bit PA-8x00 systems in 32-bit mode

Large file size of up to 128 GB in HFS, JFS and LVM

Full X11R6

Fibre Channel storage

DHCP server and client

Distributed Print Service,

CDE graphical environment

UNIX95 branded

Different HP-UX 10.20 releases were for HP 9000 700 workstations and HP 9000 800 servers and
several extensions shipped between 1997 and 1999 by HP to add hardware support, most often through HP-UX Additional Core Enhancements (ACEs).

HP 9000 Servers (10.20): In July and August 1997, Hardware Extensions CDs were shipped to extend support for T600, K370, and K570 servers and improve fibre-channel (FC) support.

HP 9000 Workstations (10.20): Multiple Additional Core Enhancements (ACEs) were shipped to extend hardware support and add new features to 10.20:

ACE 9912: B2000, C3600, J5600, J6000, J7000, VISUALIZE-fxe, IDE CD drives, USB devices

ACE 9906: B1000, C3000, and J5000 workstations and USB; Euro, LVD SCSI, Super I/O

ACE 9806: C360 workstation, PCI Visualize-EG graphics, Visualize-fx hardware texture mapping, Y2K fixes

ACE 9804: J2240 workstations

ACE 9802: Visualize-EG 2D, fixes for Y2K compliance,

ACE 9707: OpenGL; B132L+, B180L, C200, C240 workstations, Ultra SCSI, 100 Base-T Ethernet, Visualize-FX, OpenFL

HP 9000 Servers (10.30): Released in 1997 with updates and enhancements to 10.20, HP-UX 10.30 focused on 800 Series servers.
It added kernel (POSIX) threads, support for NFS version 3 (PV3), streams in TCP/IP, ASE, PPP and Y2K compliance.
HP-UX 10.30 was not intended for workstations, discontinued in 1998 and obsoleted in 1999.

Generally, HP-UX 10.20 supported most 32-bit HP 9000 models.
Hardware Enhancements bundles (HWE) were shipped with ACEs to support newer PA-8x00 based systems in 32-bit.
Most HP graphics options, I/O devices and networking adapters integrated on HP 9000s were supported.
Support for PA-RISC 1.0 and older servers was dropped.

HP-UX 10.20 supported systems

Class

Computers

700s

705, 710,
712,
715,
720, 730, 750,
725,
735, 755

740s VME

742i,
743i,
744,
745i,
745,
747i,
748i,
748

Agilent

HP Agilent 16600A, 16700A, 16700B, 16702A, 16702B

A-Class

A180, A180C

B-Class

B132L, B160L, B132L+, B180L+, B1000, B2000

C-Class

C100, C110,C132L, C160L,
C160, C180, C200, C240, C360,
C3000, C3600

D-Class

D210, D220, D230, D250, D270, D280, D310, D320, D330, D350, D370, D380, D390

E-Class

E25, E35, E45, E55

F/G/H/I-Class

F10, F20, H20, F30, G30/H30, I30, G40/H40, I40, G50/H50, I50, G60/H60, I60, G70/H70, I70

J-Class

J200, J210, J280, J282, J2240, J5000, J5600,
J6000,
J7000

K-Class

K100, K200, K210, K220, K250, K260, K370, K380, K400, K410, K420, K450, K460, K570, K580

R-Class

R380, R390

T-Class

T500, T520, T600

Portables

RDI PrecisionBook, SAIC Galaxy 1100

Not supported

All PA-RISC 1.0 systems HP 9000 840, 822, 835, 850, 870, 890 and so on

HP-UX 10.10

HP-UX 10.10 was released in 1996 as feature-only release with few enhancements to HP-UX 10.00.
It was discontinued by HP in 2000 and obsoleted in 2002.

New features and upgrades in HP-UX 10.10 included:

CDE, the Common Desktop Environment GUI

HP MC ServiceGuard

HP Process Resource Manager

Support for the HP Visualize graphics accelerators

UNIX95 (SPEC 1170) branding

Supported hardware is unclear but probably the same as HP-UX 10.00.
HP-UX 10.10 was the last stable OS release for several older Series 800 servers: 840S, 825S, 835S/SE, 845S/SE, 850S, 855S, 860S, 865S,
870S/x00, 822S, 832S, 842S, 852S, 890.

HP-UX 10.0

HP-UX 10.0 (or 10.01) was released in 1995, first as on-demand New Business Release (NBR) for new HP 9000 acquisitions and automatically shipped as General Business Release (GBR) for existing installations.
There were different HP-UX 10 releases for workstations and server, discontinued in 2000 and obsoleted in 2003.

File system layout in HP-UX 10 was moved to a SVR4 (System V Release 4), which was becoming a UNIX standard in the 1990s.
Software and licenses integrated into HP-UX included OSF Distributed Computing Environment (DCE), Streams and XTI over TCP/IP (ARPA/9000), NFS, NCS, X.11, Motif and HP VUE (Visual User Environment).
HP-UX 10.0 was binary compatible from HP-UX 9.0.

New features and upgrades in HP-UX 10.0 included:

Improvements to Symmetric Multi-Processor (SMP)

Support for SMP in HP 9000 workstations

Logical Volume Manager (LVM) software disk striping

Journaled File System (JFS)

Better I/O on 800 servers, Memory Mapped files and Dynamic Buffer Cache

NFS version 4.2 and NFS booting support

Focus on CD-ROM media for distributing HP-UX to move away from tapes (CD Now)

HP-UX 10.0 supported all currently orderable HP 9000 Server and Workstation systems and added support in the General Business Release for more systems.

HP-UX 10.0 supported systems; * - in General Business Release; ^ - apparently

Class

Computers

700s

705*, 710*,
712,
715,
720*, 730*, 750*,
725,
735, 755

740s VME

742i,
743i,
745i,
747i,
748i

800s

Early HP 9000 800 servers

C-Class

C100^, C110^

E-Class

E25, E35, E45, E55

F/G/H/I-Class

F10, F20, H20, F30, G30/H30, I30, G40/H40, I40, G50/H50, I50, G60/H60, I60, G70/H70, I70

J-Class

J200^, J210^

K-Class

K-Class^

T-Class

890, T500

Not supported

HP 9000 635, 645, 808 and 815, 825CHX, 825SRX, 834CH, 835SRX and so on

HP supported HP-UX 9.0 in parallel to 10.0 due to the large installed HP-UX 9 userbase.
When HP-UX 10.0 was released, HP supported new workstations and graphics in HP-UX 9.07 and marketed a clear upgrade path.
At HP-UX 10.01 discontinuance in 2000, HP recommended directly upgrading to 11.00 (and not 10.20).

HP-UX 10.0 was probably the last HP-UX to support early HP 9000 800 servers based on PA-RISC 1.0, though it is not totally clear which systems were supported.

↑ up

HP-UX 9

HP-UX 9 was released between 1992 and 1994 and a popular and stable version of HP-UX for PA-RISC 1.0 and 1.1 32-bit 700 and 800 Series.
There were different releases for workstations and servers, like in HP-UX 8 before: 700 Series workstations with odd release versions, 800 Series servers in even versions.
HP-UX 9 included PA-7100 support, POSIX shell and graphical HP VUE 3.0 environment.

Last HP-UX 9 versions were discontinued in May 1998 and obsoleted, as HP-UX 9 was supposedly not Y2K-ready for the turn of the century.
HP suggested an update to HP-UX 10.20 to ensure proper system operation in the Year 2000.
HP-UX 9 was supposedlythe last strongly BSD-based HP Unix before switching to System V in 10.x

Most HP-UX 9 and earlier versions were released prior to the Web-era of HP technical information so definite documentation is a bit hard to come by.

HP-UX 9 supported systems, some only in later releases; ^ - apparently in 9.07

Class

Computers

700s

705, 710,
712,
715,
720, 730, 750,
725,
735, 755

740s VME

742i,
743i,
745i,
747i,
748i

800s

Early HP 9000 800 servers (840, 825 to 870)

C-Class

C100^, C110^

E-Class

E25, E35, E45, E55

F/G/H/I-Class

F10, F20, H20, F30, G30/H30, I30, G40/H40, I40, G50/H50, I50, G60/H60, I60, G70/H70, I70

J-Class

J200^, J210^

T-Class

890, T500 (unsure)

HP-UX 9 for Workstations

HP-UX 9 was the second HP-UX release for PA-RISC workstations and supported most HP 9000 Series 700 workstations.
The first HP-UX 9 version apparently supported PA-7000 705, 710 and 720, 730, 750.
There were multiple HP-UX 9 minor versions:

HP-UX 9.01 was released in 1993 and added hardware support for
PA-7100-based 725 and 735, 755 workstations and
742i, 745i and 747i VME boards
Also supported were PA-RISC upgrades for Motorola 68000-based 425s and 425t, 1GB, 2GB and 525MB SCSI drives, CRX48Z graphics and JIS (Japanese) keyboards.

from archive.org

HP-UX 9.03 was released in 1993 for several newly released HP hardware, including
PA-7100LC 712 workstation, floppy-disk support (SCSI?), device drivers for LASI chipset, and more.
Software-wise, HP-UX 9.03 enhanced support for BOOTP and TFTP, smart shutdown, changes to SAM cluster configuration, and reduced the kernel and base OS footprint.

HP-UX 9.05 was released in 1993 and was primarily a hardware release that added support for 32-bit PA-7100LC 715 and 725 and PA-7150 735, 755 workstations.
VME workstations 743i and 748i
are also supported with 9.05.
Additional support was added for HCRX graphics, 1GB half-height SCSI and 2GB SCSI drives.

HP-UX 9.07 was released in 1993 and added hardware support for the PA-7200 J200, J210 and possibly C100, C110 workstations and multi-buffered X11.

HP-UX 9.09 was released in 1994 and probably not widely shipped.
It supposedly was a B-level Security release with very strict security controls (mandatory security).
These B1 versions were separate products parallel to other HP-UX releases.

HP-UX 9 for Series 800

The separate product stream of HP-UX 9 for servers started with version 9.00 in 1992, which included support for new PA-7100 servers.
For these HP-UX 9 server versions, only very scant information remains.

HP-UX 9.00 was released in July 1992 and added support for PA-7100 processors, a POSIX shell, VUE 3.0, fastlinks and ioscan(1) and model(1) commands plus the Logical Volume Manager (LVM) for disk management.

HP-UX 9.02 was released in 1993 and added hardware support.

HP-UX 9.04 was released in November 1993, discontinued by HP in 1997 and obsoleted at the end of 1998.
It also added hardware support.

HP-UX 9.06 was supposedly released in 1994 but it is not clear if it was a released product or internal version (plan).

HP-UX 9.08 was released in 1994 and probably not widely shipped.
It supposedly was a B-level Security release with very strict security controls (mandatory security).
These B1 versions were separate products to other HP-UX 9 releases.

↑ up

HP-UX 8

HP-UX 8 was HP Unix for then-new 32-bit PA-7000 and PA-7100 computers, released in 1991.
The codebases for 700s workstations and 800s servers were different in HP-UX 8 with separate releases for workstations (odd version numbers) and servers (even versions).
HP-UX 8 was the first HP-UX to support SMP multiprocessing, in server versions starting with HP-UX 8.06.

HP-UX 8 for Workstations

In 1991 and 1992, first HP 9000 700 workstations based on PA-RISC 1.1 PA-7000 CPUs were released.
HP-UX 8 was the first HP-UX for these workstations.

from archive.org

HP-UX 8.01 was released in 1991 and only sold to developers to create/test programs.
It supported the HP 9000 720, 730 and 750 workstations, with other hardware support unclear.

HP-UX 8.05 was released in July 1991, a partial release, not considered complete and documented
as interim at the time of shipments.
Supported systems again included the HP 9000 720, 730 and 750 workstation systems.

HP-UX 8.07 was released in January 1992 as final 8.0 release for workstations and supported the new HP 9000 705, 710 and 720, 730 and 750 systems.
Hardware support was added for
CRX, CRX-24, Dual-CRX, CD-ROM, 2.0GB drives, EISA cards (X.25, 802.5, FDDI), DDS tape drives.
Software support was added for AAPI audio API

There might have been a Trusted Systems HP-UX 8.09 version with B1 security.

HP-UX 8 for Servers

HP-UX 8 supported many original PA-RISC server systems in the HP 9000 800 series.

HP-UX 8.00 was released in January 1991.
Not much more information is findable these days other than it supporting some (most?) older HP 9000 800 servers.

HP-UX 8.02 was released in April 1992 and was rewritten to work on the new, lettered HP 9000 800 Nova servers – the F, G, H and I-Class (8x7).

HP-UX 8.06 was released in 1992 as HP-UX 8.0 with additional code to handle multiple processors in HP 9000 870 with up to four PCX processors.

HP-UX 8.04 and HP-UX 8.08 were released in 1991 and 1992 and were described as security versions of 8.0 without additional hardware or software support.

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Older HP-UX

© Hewlett Packard

Unix and HP-UX were the standard operating systems when HP developed PA-RISC and the HP 9000 family.
Many older HP-UX Unix versions were released in the 1980s for the many HP product families of the time.

As HP-UX in the 1980s preceded the internet age with digital documentation, not much information is left of these early versions.

Releases of early HP-UX were architecture-specific and versioning and numbering not very coherent: In 1988, HP-UX 3.0 for PA-RISC was released in parallel to HP-UX 6.0 for Motorola 68000.
This confusing versioning was only mitigated in HP-UX 7.

HP-UX 7

HP-UX versions 7 were released from 1989 to 1990, mostly for Motorola 68000 systems.
Apparently, HP-UX 7.03 supported PA-RISC systems in some way, probably the 800 Series servers.
There is not much verifiable information on this though.

HP-UX 3

HP-UX 3.0 was released in 1988, in parallel to the 68000-specific HP-UX 6.0, it supported (apparently) at least HP 9000 825, 835 and 850.
The 3.x versions of HP-UX were apparently PA-RISC-only releases for early 800/600 Series servers.

Sources from 1989 mention several nasty bugs in an HP-UX 3.01 release on the 850 server.
It also supported an HP implementation of X11.

HP-UX 2

HP-UX 2, released in 1987, was either the first or second release for the PA-RISC Series 800 servers.
It apparently supported the first HP 9000 840 and other early HP 9000 825, 835 and 850 servers.
There were at least HP-UX 2.0 and HP-UX 2.1 releases for PA-RISC 1.0 systems, strongly BSD-influenced, that also supported workstation 825 and 835 with graphics hardware — when server 800s were marketed as 635SV and 645SV for a (confusing) time.

HP-UX 1

Some sources mention a HP-UX 1.0 as being the first HP-UX for PA-RISC HP 9000 840, released in 1986.
This HP-UX was supposedly strongly BSD-based, in contrast to the AT&T HP-UX 1.0 for Series 500.
Since versioning and naming was in flux during that time, maybe it was a pre-release of the product that became HP-UX 2.0, bundled with first 840 servers.

Other HP-UX

The really first HP-UX 1.0 was released in 1983 for the HP FOCUS and was supposedly very different to other HP-UX versions, based on an AT&T kernel.
There was even another HP-UX 1.0 in 1984 for the HP Integral PC (on ROM) before 1.0 for PA-RISC in 1986.

HP-UX 5.0 was released in 1985 and supported Motorola-based Series 200 and 300 as well as FOCUS HP 9000 500, for which it was the last supported HP-UX (5.3).
HP-UX for FOCUS 500 Series was the first commercial UNIX supporting multi-processor, multi-user systems in the early 1980s.
SMP for PA-RISC was supported only much later in HP-UX.

HP-UX 6.0 from 1986 was for Motorola 68000, before unifying with PA-RISC in 7.0.

References

Most of the documentation and references disappeared during the 2010s from the web.
Much information has been gleaned from (slowly disappearing) USEnet postings from the 1980s and early 1990s in comp.sys.hp.hpux, especially for older versions of HP-UX.
For a while now, archive.org has a growing list of HP-UX documentation.

Software

Software Porting And Archive Centre for HP-UX,
compiled software packages for HP-UX

The Written Word FTP for HP-UX 11.00

The Written Word FTP for HP-UX 11.11

The Written Word FTP for HP-UX 11.23

HP software depot (URL gone)

Manuals

HP-UX 11i Version 1 Installation and Update Guide: HP Servers and Workstations,
Hewlett-Packard Company (June 2004: URL gone. HP part number 5990-7279)

Installing HP-UX 11.0 and Updating HP-UX 10.x to 11.0: HP 9000 Computers,
Hewlett-Packard Company (November 1997: URL gone. HP part number B2355-90153)

Installing and Updating HP-UX 10.20, ACE and Hardware Extensions: HP 9000 Computers,
Hewlett-Packard Company (April 1998: URL gone. HP part number B2355-90173)

HP-UX manual pages, Hewlett-Packard Development Company (2009: URL gone)

Websites

HP-UX server support matrix, (HP-UX 11.x support for servers) Hewlett-Packard Development Company (November 2008: URL gone)

HP-UX update matrix
(archive.org mirror) (HP-UX 10.20 and 11.x support for workstations) Hewlett-Packard Development Company (2003: accessed March 2009)

HP-UX version and server model support matrix
(archive.org mirror) (HP-UX 11 support for servers) Hewlett-Packard Company (2001: accessed April 2009)

Building a Bastion Host Using HP-UX 11, Kevin Steves (April 2000: Hewlett-Packard)

docs.hp.com - Technical documentation, good entry to HP-UX documentation (URL gone)

hp-ux history (archive.org mirror), Hewlett-Packard Company (2002: mirror accessed January 2024)

Support Matrix - HP-UX Workstations Processors, OS Versions and Graphics (archive.org mirror), Hewlett-Packard Company (2001: mirror accessed January 2024)

Release notes

HP-UX 11i v3 Release Notes (archive.org mirror)

HP-UX 11i v2 Release Notes (archive.org mirror from 2010. Original: docs.hp.com)

HP-UX 11i v1.5 Release Notes (archive.org mirror from docs.hp.com)

hp-ux operating system releases (archive.org mirror), Hewlett-Packard Company (2002: mirror accessed January 2024)

HP-UX 10.0 Overview (archive.org mirror), Hewlett-Packard Company (2002: mirror accessed January 2024)

HP-UX 10.0 Supported Hardware and Software (archive.org mirror), Hewlett-Packard Company (2002: mirror accessed January 2024)

HP-UX 10.30 and 10.20 Operating System Introduction Plan
(archive.org mirror), Hewlett-Packard Company (2002: mirror accessed January 2024)

HP-UX 10.20 Hardware Systems Supported (archive.org mirror), Hewlett-Packard Company (2002: mirror accessed January 2024)

hp-ux 11.0
overview & features (archive.org mirror), Hewlett-Packard Company (2002: mirror accessed January 2024)

Release Notes for HP-UX 11.0 Extension Pack, May 1999 (archive.org mirror), Hewlett-Packard Company (1999: mirror accessed January 2024)

Exploring HP-UX Releases and Media (archive.org mirror), Hewlett-Packard Company (2001: mirror accessed January 2024)

Exploring HP-UX Releases and Media (archive.org mirror), Hewlett-Packard Company (1998: mirror accessed January 2024)

Other documents

HP-UX FAQ (comp.sys.hp.hpux FAQ)
Ian Springer (February 2008: accessed January 2024 on faqs.org)

INFORMATION
ON HP9000 SERVERS AND WORKSTATIONS Hewlett Packard Company (1997 (1999): accessed January 2009)

HP Delivers 64-Bit HP-UX Operating System on HP VISUALIZE Workstations (archive.org mirror), Hewlett-Packard Company (1999: mirror accessed January 2024)

Much information has been gleaned from many USEnet postings in comp.sys.hp.hpux, especially on the older versions, from between 1988 and 1998

HP Developer Resource Document Library (archive.org mirror), Hewlett-Packard Company (1999: mirror accessed January 2024)

ACE Software Archive, software.hp.com (archive.org mirror), Hewlett-Packard Company (2001: mirror accessed January 2024)

hp-ux 11.0 operating system, technical documentation (archive.org mirror), Hewlett-Packard Company (2001: mirror accessed January 2024)

64-Bit Computing and the HP-UX 11.00 Operating Environment (archive.org mirror), HP Software, Hewlett-Packard Company (2000: mirror accessed January 2024)

Pictures © Hewlett Packard, scans from product brochures, from hpmuseum.net and 1000bit.it

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OpenPA is an independent resource on PA-RISC computers, technology and operating systems, edited since 1999 by Paul Weissmann.
He also publishes OpenKRITIS on critical infrastructures and Insel Westberlin, a Berlin archive.
OpenPA is a registered serial publication, ISSN 1866-2757.

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