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Power Tools 1993 November - Disc 2
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Power Tools Plus (Disc 2 of 2)(November 1993)(HP).iso
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dhcf.txt
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1993-09-14
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DHCF News to help you sell MPE/XL systems in IBM environments
SNA DHCF/XL PERFORMANCE IMPROVES ON MPE/XL 2.1
DHCF performance has been improved significantly since the first
release on MPE/XL 2.0. On MPE/XL 2.1, the amount of CPU resource
required by SNA DHCF/XL is 400% to 1000% less, an average
decrease of 84%, allowing more resources for the HP 3000
applications IBM users need to access.
DHCF response time on MPE/XL 2.1 is similar to MPE/XL 2.0 because
the performance improvements were focused on reducing HP 3000 CPU
utilization. The average transaction rate has been increased an
average of 32%. Up to 60 IBM 3270 terminal users experience less
than 1 second response time on a Series 935 for transactions such
as depressing the ENTER key and receiving a colon prompt.
Detailed performance data is available in the Product Support
Sales Guide (PSSG), 2/90.
HOTKEY CAPABILITY
Now, applications on the HP 3000 are even easier to access and
multiple interactive sessions can increase user productivity.
IBM 3270 display station users can "hotkey" between applications
on the HP 3000 running DHCF and applications on the IBM host.
The Multiple Logical Terminal (MLT) function in the microcode on
a 3174 Control Unit provides this capability and allows a
terminal user to interact with up to five different sessions on
multiple hosts.
To enable users to "hotkey" between applications, an IBM 3174
Control Unit Model 51R is required. During our testing, we had
two HCF sessions logged onto an HP 3000 Series 925 running DHCF
(one session running HP Desk and the other running a VPLUS
application) and two TSO sessions on the IBM host (one session
interacted with ISPF and the other with SDSF).
__________
| IBM Host |
| HCF |
|__________|
|
|
_______
| 327x |
|_______|
/ \
/ \
/ \
_____ _____
3174 Control Unit | MLT | | DHCF| HP 3000
Model 51R |_____| |_____| Series 900
|
_____
| 327x|
|_____|
Terminal
Refer to the following IBM manuals for more information:
Terminal User's Reference for Expanded Functions, GA23-0332
3174 Establishment Controller Planning Guide, GA27-3844
3174 Customizing Guide, GA23-0214
IBM 5250 TERMINAL ACCESS
One HP customer has an HP 3000 application they make available to
their clients on a timeshare basis. Some of their customers have
IBM 5250 terminals on an IBM System/36. HP was asked whether
DHCF would support this type of terminal access to their VPLUS
application. The answer is yes. By running a 3270 emulator on
the client's IBM System/36, the 5250 displays can access HCF on
an IBM 3090 host, then acquire a DHCF session on the HP 3000.
________ ________
________ | | | |
____ | 3270 | | | | DHCF |
|5250|______|Terminal|______| HCF |______| |
|____| |Emulator| | | | VPLUS |
|________| |________| |________|
Terminal S/36 IBM Host HP 3000
DESKEDIT - FULL SCREEN EDITOR
SNA DHCF has now been enhanced to support full-screen editing
capabilities for users accessing HP Desk. DHCF 3270 Desk Editor
provides the 3270 interface between the full screen editing
features provided to the 3270 user, and the EDITOR subsystem.
MM/PM CERTIFICATION
SNA DHCF now allows IBM mainframe users with IBM 3270 display
stations to access online applications such as HP MM/3000 and
PM/3000 which are running on the HP 3000 Series 900 systems.
Note that VPLUS forms need to be recompiled with the 3270 option.
For information on designing or modifying a VPLUS application for
use with DHCF 3270 sessions, refer to "SNA DHCF/XL Application
Programmer's Manual", 36935-61003.
COGNOS POWERHOUSE APPLICATIONS
HP 3000 applications developed with Cognos Powerhouse are NOT
supported by DHCF. SNA DHCF/XL is not a full HP terminal
emulator and does not handle the variety of escape sequences used
by Powerhouse applications. DHCF supports VPLUS applications and
TTY-mode applications only. TTY-mode applications, such as HP
Desk, use only four simple types of terminal control characters
or escape sequences.