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Tech Bulletin: Printing Operations on Nondedicated 286 File Servers
NOVELL TECHNICAL BULLETIN
TITLE: Printing Operations on Nondedicated 286 File Servers
DOCUMENT ID: TB.P.198
DATE: 10/28/87
PRODUCT: NetWare
PRODUCT VERSION:
SUPERSEDES: NA
SYMPTOM: NA
ISSUE/PROBLEM
THIS TECHNICAL BULLETIN PROVIDES FURTHER INFORMATION RELATING TO BULLETIN
TB.P.195
It has been discovered that printing in BASIC or with Lotus 1-2-3
(version 2.01 and above) appears to cause the nondedicated workstation to
hang for a short time, after which a "device unavailable" error is
generated to the screen and the print process is aborted. (This happens
regardless of whether the workstation is spooled and on all versions of
nondedicated NetWare.)
To do printing from a nondedicated server, either a local printer or a
server printer may be installed on a given LPT port, but not both. This
is done to prevent any chance of interleaving the middle of a local print
job with a server print job or vice versa.
During server installation, LPT1, by default, is installed as a server
printer port. When the server is booted, it zeroes out the DOS LPT1 port
address area in memory to indicate that LPT1 is not available to do local
printing. If the port address is zero, the workstation will timeout and
generate the error message to the screen.
The solution is to place a non-zero value in the LPT1 port address area.
To do this, the program PRFIX.COM was written. It can be put into the
login script or be run after logging in, but must be done before the
first printing by any Lotus 1-2-3 or BASIC program. PRFIX.COM only needs
to be run once, since the value it places in the LPT1 port address
remains unchanged until the server is rebooted again. Logging in and out
will not change it.
When the file server/workstation is used to run applications, it should
be noted that file server processes must share CPU time with the running
applications. Depending on the intensity of the application, the impact
on file server processes will vary. It is most noted when printing from
the file server.
When the file server/workstation is running an application, the printer
may run slower than if the file server/workstation is sitting at a DOS
prompt or is in a "console" mode. Whenever multiple large print
operations must be performed, it is recommended that the file
server/workstation either be left at a DOS prompt or placed in console
mode.
PRFIX.COM is available from NetWire as PRFIX.ARC.
Lotus is a trademark of Lotus Development Corporation.
NetWare is a registered trademark of Novell, Inc.
NetWire is a registered trademark of Novell, Inc.