IBM 2074-002 Enterprise Server

When planning to install new systems or LPARs you will need to consider the number and placement of IPL and operations consoles and associated controllers. Until recently, managing this growth required the addition of at least one IBM 3174 Establishment Controller or equivalent to support the startup of each zSeries and S/390 image. 2074 controller. The 2074's CD-ROM provides Optical Media Attach (OMA) support which can be useful for installations who no longer have tape drives but would like to work with software distribution CDs such as those used by from VM or z/VM."

Client console PCs can be connected to either 10/100 Mbps Ethernet or 4/16 Mbps Token-Ring Local Area Networks. The 2074 is a protocol converter that transforms 3174 non-SNA, Distributed Function Terminal (DFT) ESCON data streams into LAN-based TN3270E data streams; therefore client consoles must run a TN3270E emulator to connect to the IBM 2074. A recommended emulator is IBM eNetwork Personal Communications V5.0.

PC consoles can be located anywhere in your TCP/IP infrastructure, be it local in the data center or remote across the campus, the city, the country or even overseas, opening doors to potential savings in consolidating operations into selected sites, or, to facilitate movement and access by your operations staff.

The IBM 2074 Console Support Controller is a Multiple Image Facility (MIF)-capable console support controller with increased support for consoles running TN3270E emulation.

The IBM 2074 Model 002 is a control unit that connects to a host via a direct ESCON(R) channel, via an ESCON Director, or with a FICON(TM) Bridge. It connects to client PCs with: Ethernet (10 Mb/s), Fast Ethernet (100 Mb/s), 4 MB Token Ring, and 16 MB Token Ring.

• Replaces the console support functions of the IBM 3174 Establishment Controller.
• Is shipped with an integrated ESCON adapter with an option for a second ESCON adapter, both of which connect to a host, via a direct ESCON channel, via an ESCON Director, or with a FICON Bridge.
• Provides integrated Optical Media Attach (OMA) support, which can be used to load z/VM distribution tapes (on CD-ROM in OMA format) onto IBM eSeries zSeries servers.
• Converts 3270 non-SNA, Distributed Function Terminal (DFT) ESCON data streams into LAN-based TN3270E data streams.
• Is used as a S/390 or zSeries system console and operating system console.
• Connects to client PCs with Ethernet or token ring.

• One IBM 2074 Model 2 can replace multiple 3174s.
• The latest IBM 2074 Console Support Controller replaces the IBM 2074 Model 1 and increases the number of supported sessions to 64 per controller
• Support for up to two ESCON interfaces
• Support for Multiple Image Facility (MIF)
• OMA media distribution for VM and z/VM(TM)
• Remote consoles connected via TCP/IP network
• Consolidation of console support boxes, which can increase available floor space

The IBM 2074 Model 2 Console Support Controller connects to a host via a direct ESCON channel, via an ESCON Director, or with a FICON Bridge. The IBM 2074 Model 2 connects to client console PCs running TN3270E emulation and attached to Ethernet (10 Mb/s), Fast Ethernet (100 Mb/s), 4 MB Token Ring, or 16 MB Token Ring local area networks. The IBM 2074 Model 2 provides support of non-SNA, DFT data streams to help enable current and past operating systems to function if the 3174 and IBM 2074-001 are no longer available. One IBM 2074 Model 2 can replace multiple 3174s or 2074 Model 1s, depending on setup and use. If you are replacing multiple 3174s, you should purchase at least two IBM 2074 Model 2 Console Support Controllers to avoid creating a single point of failure.

The IBM 2074 Model 2 connects to a host via a direct ESCON channel, via an ESCON Director, or with a FICON Bridge. It connects to client console PCs with Ethernet (10 Mb/s), Fast Ethernet (100 Mb/s), 4 MB Token Ring, or 16 MB Token Ring. The IBM 2074 Model 2 provides support of non-SNA, DFT data streams to help enable current and past operating systems to function when the 3174 and IBM 2074-001 are not available.

One IBM 2074 Model 2 can replace multiple 3174s or 2074 Model 1s, depending on customer setup and use. The IBM 2074 Model 2 is now shipped with one integrated ESCON adapter card and has an optional second ESCON adapter card feature. Each ESCON adapter can handle up to 32 console sessions for a total of 64 console sessions per IBM 2074 Model 2, as well as directly connecting to one or two CEC system attachments. With the use of an ESCON Director, one IBM 2074 Model 2 can attach to 64 different CECs. Thus one IBM 2074 Model 2 Console Support Controller can manage up to 64 LPARs or system images.

Customers replacing multiple 3174s should purchase at least two IBM 2074 Model 2 Console Support Controllers to avoid creating a single point of failure. There is no multi-path support with the IBM 2074 Model 2. Although there are two ESCON cards and both can be attached to the same CEC, the IBM 2074 Model 2 cannot be configured so that the loss of one connection will nondisruptively switch sessions to the other ESCON adapter.

The IBM 2074 Model 2 is also shipped with two integrated 10/100 Fast Ethernet adapters and two integrated 4/16 Token Ring adapters for LAN attachment flexibility. The number of LAN attachment types is not an orderable feature and cannot be changed.

There is no model upgrade from an IBM 2074 Model 1 to an IBM 2074 Model 2.

The IBM 2074 Model 2 OMA feature allows you to use software distributed in the OMA (Optical Media Attach) format. Some IBM software products, for example, VM/ESA(R) and z/VM(TM), distribute installation and service in this format. The OMA feature is especially useful if you don't have tape drives that are compatible with the product's distribution media. The OMA feature is available for the IBM 2074 Model 1 when that model is upgraded to 2074 Driver level 1.0.8.

OMA competes with 2074 resources devoted to 3270 console I/O. It is intended for installation and service and its use may need to be restricted to off-peak times to avoid performance problems.

The IBM 2074 Model 2 controller can be attached directly to the host or through a Director and it is MIF capable. While an individual session cannot be shared between LPARs a single IBM 2074 Model 2 controller can have sessions configured in different LPARs different CECs and on different channels. Attachment to a FICON(TM) channel via an appropriately configured Director is also supported.

A single IBM 2074 Model 2 Console Support Controller can replace multiple ESCON attached 3174's or 2074 Model 1's. For example if a customer were running 15 z/OS LPARs on a system, then 15 3174 controllers would be required, one for each LPAR. With the IBM 2074 Model 2 Console Support Controller all 15 LPARs can run through one controller (unless more than 64 3270 sessions were needed).

It is recommended that at least 2 IBM 2074 Model 2 Console Support Controller be installed (or one IBM 2074 Model 2 with back-up 3174's) to prevent having a single point of failure. TN3270E on the clients can be configured so that if an IBM 2074 Model 2 Console Support Controller system goes down the client sessions will automatically connect to a back-up IBM 2074 Model 2 Console Support Controller. This will be a disruptive change meaning that if a user were logged on to TSO he would get a new logo and have to logon again.

There is no multipath support in the IBM 2074 Model 2 Console Support Controller. Although there are two ESCON cards and both can be attached to the same CEC the IBM 2074 Model 2 Console Support Controller cannot be configured so that the loss of one connection will non-disruptively switch sessions to the other ESCON adapter. However a client could have two sessions connected to an IBM 2074 Model 2 Console Support Controller each through a different LAN adapter and each connected to the CEC through a different ESCON card.

CCW interpretation is done by the IBM 2074 Model 2 Console Support Controller. CCWs required for non-SNA support are emulated. This includes Read Buffer, Read Modified, Write, Erase Write, Erase Write Alternate Sense, Sense ID, and Write Structured Field. Errors in CCW interpretation/conversion may be indicative of a problem with the IBM 2074 Model 2 Console Controller. If such errors are encountered, have your IBM 2074 Model 2 serviced.

Order interpretation is done on the client workstation by the TN3270E Emulator.

IBM has tested the eNetwork Personal Communications V5.0 emulator running under Microsoft Windows 98 + for compatibility, however there is no reason to believe that other compatible emulators will not work. Please contact the emulator product vendor directly for terms, conditions, prices and other product details related to such vendor's emulator. Errors in order interpretation are not characteristic of a problem with IBM 2074 Model 2 Console Support Controller, rather they are indicative of a problem with the emulator. If such a problem is encountered, please contact your emulator vendor. It is recommended that only emulators with support be used (e.g. Not "freeware" emulators).

Orders and CCWs are supported to allow console support for z/OS(TM), z/OS.e(TM), OS/390(R) (back to MVS/XA(TM)), VM/ESA(R), z/VM(TM), VSE/ESA(R), and TPF. The IBM 2074 Model 2 Console Support Controller can be used for either an z/OS console or for a TSO session and it can support the above operating systems in any combination simultaneously.

Screen sizes are the province of the TN3270E emulator. The IBM 2074 Model 2 Console Support Controller itself just reports back to the operating system the screen size that the emulator says is configured on the client for that session. This is done via a Write Structured Field Query Reply. Currently emulators support 24x80 32x80, 43x80, and 27x132.

In general the 3270 data stream does not provide for specific device types but rather for device capabilities. The host doesn't see a 3278 or a 3279 it sees a device with or without color. It also doesn't see a 3278 model 2, 3, 4, or 5, rather it sees a 24x80, 32x80 43x80, etc. display. IBM 2074 Model 2 Console Support Controller reports 7 colors for all TN3270E clients and returns the screen size supported on the client.

A custom CD-ROM with the IBM 2074 Model 2 Console Support Controller code is pre-loaded onto the IBM 2074 Model 2 hard drive. The customer must use the configuration utility to customize the box. The configuration utility is based on the MP3000 "EMIO configuration" utility AWSCFG. The following items must be customized:

• LAN adapters
• LAN adapter IP addresses
• Frame type for each Ethernet Adapter (IEEE or DIX)
• Definition of the 32 possible sessions on each ESCON adapter card:
  • The source definition on the ESCON side LPAR number unit address, port number, etc.
  • The target definition for the client IP address and/or LUNAME
  • Selection of a device type for each session Display (3278), Printer (3287), or OMA Tape (3422)
• TCP/IP port number definition for each ESCON adapter

The completed configuration should be saved on diskette. In case of a hard drive failure the CE will replace the hard drive and reload it from the CD-ROM. The customer configuration can then be loaded from the customer diskette created after customization was completed. If no diskette is available the customer will have to re-customize the controller.

Once configuration is complete the system must be rebooted for the changes to take affect. After that the system will automatically come live on a reboot unless the process is stopped manually from the keyboard and display attached to the IBM 2074 Model 2 controller.

Changing the configuration is disruptive. Changing the session definition requires all sessions on that ESCON adapter to be reset but does not affect the sessions on the other ESCON adapter. Changing IP addresses on the LAN may be disruptive if clients are connecting through those addresses. Changing frame type requires a reboot.

No specific run time management tools are provided.

Clients connect the IBM 2074 Model 2 controller based on the IP address of the adapters. They select the ESCON adapter by means of the TCP/IP port customized for that adapter and select a specific 3270 session such as LPAR number, Director port and address based on the LUNAME provided.

When a client session disconnects from the IBM 2074 Model 2 controller the IBM 2074 Model 2 sends the S/390 server an unsolicited "device end" to signal a change in status. This tells the operating system that the "3270" has been powered off/on and causes the operating system to disconnect the user.

• Size:

  The IBM 2074 Model 2 package is a rack model box measuring approximately:

  • Width: 17.30 inches (standard 19-inch rack)
  • Height: 5.00 inches (3U)
  • Depth: 27.30 inches
• Space:

  The following additional space is required for the machine to function properly:

  • Fifty millimeters (50 mm) must be allowed on both the left side and the right side for air flow.
  • A 100-mm clearance should be allowed in the rear for cables.
• Weight:
  • IBM 2074 Model 2 system weight can be approximately 60 pounds when fully configured.

Temperature, Humidity, and Altitude

Class B Extended   Temperature   Altitude   Humidity   Max Wet Bulb
Environment        (Degrees C)   (Meters)   (Percent)  Temp (Deg C)
-----------------  -----------   ---------  ---------  ------------
Product Operating    10-35         0-914      8-80          23
                     10-32       914-2,133    8-80          23
Product Power Off    10-43                    8-80          27
Machine Storage       1-60                    5-80          29
Machine Shipment    -40-60                    5-100(2)      29
 

Note: (2) Including condensation but excluding rain.

Electromagnetic Compatibility

The IBM 2074 Model 2 will meet worldwide class "A" EMC requirements (such as FCC class A, CE Mark EMC requirements, CISPR 22 Class A, and VCCI class 1).

Power Requirements

The IBM 2074 Model 2 needs the following nominal power:

• 100-127 V ac 50 Hz or 60 Hz
• 200-240 V ac 50 Hz or 60 Hz

The IBM 2074 Model 2 supports only TN3270E clients.

Although there is a total of 64 TN3270E sessions available, only two of these sessions may be configured locally on the 2074's display itself and then only for debugging, not production purposes.

The IBM 2074 Model 2 contains four LAN adapters, two of each kind. Two LAN adapters can't be connected to the same subnet. OS/2(R) doesn't support load balancing. The multiple LAN adapters are to allow you to connect to four different subnets.

There is no multi-path support with the IBM 2074 Model 2. Although there are two ESCON cards and both can be attached to the same CEC, the IBM 2074 Model 2 cannot be configured so that the loss of one connection will nondisruptively switch sessions to the other ESCON adapter.

If more than one IBM 2074 Model 2 is installed in the same rack, then a Keyboard/Video/Mouse (KVM) sharing console switch should be considered. With a console switch you can have one Keyboard/Mouse/Display controlling multiple IBM 2074s. The use of a KVM sharing switch could complicate service issues, and might have to be removed to diagnose certain problems. A spare Keyboard, Mouse, and Display would allow problem isolation without disrupting the other 2074s sharing the switch.

A TN3270E emulator must be installed on each client console. Clients consoles should be at least 500 MHz, have 128 MB memory, and have accelerated graphics with at least 8 MB video memory. A 21-inch display is recommended to allow viewing of many console sessions at once.

If more than one IBM 2074 Model 2 is installed in the same rack, then a Keyboard/Video/Mouse (KVM) sharing console switch should be considered. With a console switch you can have one Keyboard/Mouse/Display controlling multiple IBM 2074s. The use of a KVM sharing switch could complicate service issues, and might have to be removed to diagnose certain problems. A spare Keyboard, Mouse, and Display would allow problem isolation without disrupting the other 2074s sharing the switch.

We recommend the IBM NetBAY Console Switch.

Each IBM 2074 Model 2 must have a keyboard, mouse, and display attached at all times. If you are using console switch, then it provides this function when the active keyboard, mouse, and display are switched away.

The IBM 2074 Model 2 requires no specific S/390 or zSeries software. No user code will run on this box. The IBM 2074 Model 2 is compatible with existing 3270 data streams for VM, VM/ESA(R), z/VM(TM), VSE/ESA(TM), MVS(TM), TPF, OS/390(R), z/OS(TM), Linux, and z/OS.e(TM), including back-level releases.

The IBM 2074 Model 2 is shipped with a custom CD-ROM that is preloaded onto the IBM 2074 Model 2 hard drive. The software on this CD-ROM is IBM Licensed Internal Code and may only be used under the LIC license for operation of the IBM 2074 Model 2 Console Support Controller. The customer must use the configuration utility to customize the box. The configuration utility is based on the Multiprise 3000 "EMIO configuration" utility AWSCFG. The same IOCP/HCD must be done for the IBM 2074 Model 2 as for the 3174. However, the IBM 2074 Model 2 supports shared MIF channels.

Client PCs attach to an IBM 2074 Model 2 via Token Ring or Ethernet adapters using a TN3270E data stream. This means that the client must have a TN3270E emulator installed. IBM has tested the eNetwork Personal Communications V5.0 emulator running under Microsoft Windows 98 + for compatibility, however there is no reason to believe that other compatible emulators will not work. Please contact the emulator product vendor directly for terms, conditions, prices and other product details related to such vendors emulator.

Special Feature Codes -- Chargeable

Description                         Machine   Model   Feature Min/Max
---------------------------------------------------------------------
BASIC FEATURES:
---------------
2074 Console Support Controller       2074     002      N/A     N/A
 
 Includes one ESCON adapter, two auto-sensing 10/100 Ethernet adapters,
 and two auto-sensing 4/16 Token Ring adapters.
 
OPTIONAL FEATURES:
------------------
 Second ESCON Adapter Card                              7408    0/1
 
CABLES:
-------
ESCON and LAN cables are supplied by the customer.
 
RELATED OPTIONS:
----------------
 - 19" Rack
   NetBAY22, IBM P/N 9306-200
   Rack extension IBM P/N 36L9702
 
   Note:  See MIGR-4PDJF3 AND MIGR-4Y2NTP for more NetBAY rack changes.
 
   For current options and additional features refer to NetBAY's
   Rack Configurator.  Specify xSeries (TM) 342 as the machine type.
 
 - NetBAY Console Switch
    IBM Console Switch (1x4 port) P/N 09N4290 FRU 06P6003
    IBM Console Switch (2x8 port) P/N 09N4291 FRU 06P6004
    IBM 1x8 Console Switch (replaces 09N4290) 17351LX
    IBM 2x16 Console Switch (replaces 09N4291) 17352LX
 
 - NetBAY Cable Set
    IBM NetBAY Cable Set 7 foot, (locking) P/N 09N4293 FRU 06P6006
    IBM NetBAY Cable Set 12 foot, P/N 94G7447 FRU 06P6007
    One Cable Set is needed for each IBM 2074 Model 2.  A Cable
    Set is a Siamese cable for a mouse, keyboard, and display.
    A locking Cable Set is one that has a retaining device. 

An optional Second ESCON adapter card (#7408) is available on the IBM 2074 Model 2.

b>Diskettes