The IBM 3090 Processor Complex is the most powerful IBM
computing system available. The IBM 3090 Processor Unit performs the data processing
functions of the system. It is supported by a number of required or optional units,
which are described in this publication.
The quantity required of each support unit depends on the model of the IBM 3090
Processor Unit. Outline configuration details are provided in the IBM 3090 Processor
Unit publication GS11-0133.
Required Unit Types:
IBM 3089 Power Unit (or equivalent).
IBM 3092 Processor Controller.
IBM 3097 Power and Coolant Distribution Unit.
IBM 3180 Display Station as system/service console.
IBM 3370 Direct Access Storage Device
IBM 3864 Modem (or equivalent) with autocall/autoanswer feature.
Access to IBM 3480 Magnetic Tape Subsystem or IBM 3420 Tape Drive,
6250 bits per inch (or equivalent).
Optional Units:
IBM 3179/3180 Display Station {or equivalent) channel-attached operator console
for communication with system control program.
The 3089 contains a motor generator and it, or an equivalent device,
provides 400 Hz power to the IBM 3097 Power and Coolant Distribution Unit
from which it is distributed to the different frames of the IBM 3090 Processor Unit.
Highlights include:
Designed for location in the computer room, with the same colour options and low
noise characteristics as the IBM 3090 Processor Unit.
Installed by IBM together with the rest of the
3090 Processor Complex, simplifying initial installation.
Can be maintained by IBM, helping to assure the high availability of the 3090 system,
which depends on the correct functioning of the power source for the IBM 3090 Processor
Unit.
The IBM 3097 Power and Coolant Distribution Unit provides the combined functions
of power distribution to the 3090 Processor Complex and water cooling to the IBM 3090
Processor Unit. The Model 1 differs from the Model 2 by
providing Input/Output Power Sequence and
Control (TOPS) capability. The more compact and less expensive Model 2 can be field
upgraded to the Model 1 in five hours, plus the time required to connect IOPS cables.
Power Distribution:
Obtains power from the IBM 3089 Model 3 Power Unit or equivalent 400 Hz power source.
Distributes 400 Hz power to the IBM 3090 Processor Unit and 50 or 60 Hz power
to the IBM 3092 Processor Controller and the IBM 3090 Processor Unit.
IBM 3097 Model 1 can power on and off up to 64 control units and, if configured with
the optional Power Sequence Control feature, up to 128 control units.
Coolant Distribution:
Controls the temperature and flow rates of an IBM-supplied closed-loop distilled
water cooling system used to cool the Thermal Conduction Modules in the IBM 3090
Processor Unit.
Pumps the water in the closed-loop system through a heat exchanger in the 3097
where customer-supplied chilled water from an external source absorbs the heat.
Contains a duplicate pump for the closed-loop cooling system which automatically
takes over from the operating pump if it fails.
The IBM 3092 Processor Controller Models 1, 2 and 3 monitor and control the status
of all physical units within a 3090 Processor Complex.
The Models 1 and 2 contain duplicate processor and are supported by duplicate 3370
Direct Access Storage Devices often permitting the Processor Controller to continue
operation after component failures.
All models of 3092 perform similar function These are:
Device Attachment for:
Required and optional 3180 system and service consoles.
3370 Direct Access Storage Devices.
3864 Modem or equivalent.
Optional Console Printer.
System Initialisation and Control:
Power on and power off of all 3090 Processor Complex units and all control units
which are under 3097 power sequence control.
Initial Microcode Load (IML} and Initial Program Load (IPL) of the IBM 3092
Processor Controller and IML of the IBM 3090 Processor Unit.
Validation of error-free data locations in
Central Storage and recording of failing storage locations.
System configuration for System/370 Extended Architecture mode of operation.
Monitoring and Error Logging:
Collection of in formation for up to 24 system activity displays
including central processor and channel utilisation.
Monitoring of voltage levels and coolant flow rate.
Logging of errors, failures and status information relating to Processor Complex
and I/O problem determination.
Error Recovery, Fault Diagnostic and Service Support:
Automatic error recovery where possible, such as the activation of the duplicate water
pump in the 3097.
Automatic identification of the failing field replaceable unit,
at times concurrent with 3092 and 3090 operation.
Operator alert for non-recoverable failures or failures which exceed a threshold.
Interactive Customer Problem Analysis for problem determination and immediate
recover when feasible.
Reconfiguration of Central Storage, Expanded Storage, Vector Facilities,
Central Processor and online channels to bypass failures.
Remote Service Facility to permit immediate fault diagnosis by remote IBM specialists
using a dial-up link.
IBM 3864 Model 2 Modem
IBM 3864 Model 2 Modem
The IBM 3864 Model 2 Modem with an Autocall Unit feature, or an equivalent device,
is required to permit access by the IBM 3092 Processor Controller to IBM's Remote Service
Facility (RSF) which is used for remote service updating as well as remote fault diagnosis.
The 3864 permits data transmission at
4800 bits per second on a switched telephone network.
Autocall Unit feature permits automatic dialling to or from the IBM remote service
location.
No incoming or outgoing calls are permitted without customer authorisation and manual
instead of automatic dial up can be used if required.
Details of all calls are recorded and each call is listed on a Remote Service
Facility (RSF) log index which can be displayed.
Once the link is established, an IBM specialist can run diagnostics remotely.
One or two IBM 3370 Model A02 Direct
Access Storage Devices are used to provide storage for the IBM 3092 Processor Controller:
Each 3370 has its own control unit and can store up to 730 Megabytes.
Each 3370 is connected, by means of a string switch feature, to both processors
in the 3092.
The 3370s are used to store microcode for
the 3092 and 3090 together with system Input/Output configuration in formation,
diagnostics and the error logs used by personnel.
In normal single image operation, when two 3370s are configured, one 3370 is active
and the other provides backup. Essential information is duplicated on both 3370s so that
the backup processor in the 3092 Model 1 or 2 and the backup 3370 can take over at
any time.
IBM 3480 Magnetic Tape Subsystem and IBM 3420 Model 4/6/8 Tape Drive
IBM 3480 Magnetic Tape Subsystem and IBM 3420 Model 4/6/8 Tape Drive
Access is required by the IBM 3092 Processor Controller to a tape drive to install
microcode and diagnostics, to apply engineering changes and to reload the IBM 3370
Direct Access Storage Devices, if necessary. This is provided by:
Access to a channel path to an IBM 3480 Tape Drive (or equivalent using 38K bits per
inch cartridges) or an IBM 3420 Model 4, 6 or 8 Tape Drive (or equivalent using 6250
bits per inch tapes).
In the case of an IBM 3090 Model 400E or 600E, access to a tape control unit must
be provided from each processor in the IBM 3092 Model 2.
Maximum distance between the tape drive and the IBM 3092 is:
122 m (400 feet) for an IBM 3480,
61 m (200 feet) for an IBM 3420 Model 4 or 6 extendable by RPQ to 107 m (350 feet),
The IBM 3180 Model 140 Display Station 1s a monochrome unit used to perform multiple
console roles in a 3090 Processor Complex.
The IBM 3092 Processor Controller can support up to six physical 3180 consoles,
required and optional. The quantity of required console depends on the model
of the IBM 3190 Processor
Unit.
Each 3180 can be used logically as a system console, service console,
programming support console, system console monitor or service console monitor.
Any physical display attached to 3092 can be given multiple logical
console functions, which may be re-assigned as required.
The service support display must be located within 10 metres (33 feet) of the 3092.
Other displays can be located up to 1500 metre (4921 feet) away.
Optional Units
A number of optional units may be attached to the 3090 Processor Complex.
These include:
IBM 3179 and IBM 3180 Displays
According to user needs, IBM 3179 colour and IBM 3180 Model 1 monochrome displays,
or other supported devices, may be channel-attached via an IBM 3274 Control Unit for
use as MVS or VM operator consoles.
IBM 3287 and 4224 Printers
Up to two optional console printers can be attached to the IBM 3092 Processor
Controller.
Four models are supported for copying console display images:
IBM 3287 Model 1, 80 characters per second,
IBM 3287 Model 2, 120 characters per second,
IBM 4224 Model 201, 250 characters per second
IBM 4224 Model 202, 400 characters per second.
Console Table
The IBM console table provides an optional operator workstation for one or two
operators and their display consoles.
Physical Characteristics
This information is provided for comparison purposes only. The IBM Installation Manual
Physical Planning, GC22-7074, should be used for detailed planning.
