[THIN] Re: Printing Support on an old Farm
- From: "Mack, Rick" <Rick.Mack@xxxxxxxxxxxxxx>
- To: <thin@xxxxxxxxxxxxx>
- Date: Wed, 7 Apr 2004 10:11:20 +1000
Hi,
There is a limited amount of kernel memory available for printer
drivers. Many printer drivers don't unload from memory until session
that loaded them logs off. If the memory quota for printer drivers is
exceeded, new ones won't load.
TSE and the latest TSE-safe HP printer drivers have a major problem,
their size. If HP had just fixed the TSE unfriendly drivers without
bloating them with all that "wonderful" functionality, life would be
sweet. Instead we've got drivers that consist of over 10+ DLLs, that use
heaps more memory than native drivers, and that can create some
interesting problems when there isn't any room for any more.
The only fix is to use smaller drivers, or a smaller number of drivers.
Use native TSE drivers wherever possible. Some manufacturers like
Lexmark actually have "slim" drivers, available on request that are
specifically designed for terminal servers. It's quite easy to use an HP
4000 series driver for the 4100/4050 etc printers to reduce the total
number of drivers used. Where you need support for additional
functionality (multi-bin printers etc) use postscript drivers. It's
really quite easy to graft a win2k driver PPD file into a TSE compatible
PS driver package.=20
Regards,
Rick
Ulrich Mack
Volante Systems
18 Heussler Terrace, Milton 4064=20
Queensland, Australia
tel +61 7 32467704
rmack@xxxxxxxxxxxxxx
Ulrich Mack
rmack@xxxxxxxxxxxxxx=20
Volante Systems
18 Heussler Terrace, Milton 4064=20
Queensland Australia.=20
tel +61 7 3246 7704=20
-----Original Message-----
From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx]=20
Sent: Wednesday, 7 April 2004 3:17 AM
To: Thin@Freelists. Org (E-mail)
Subject: [THIN] Printing Support on an old Farm
Still supporting a TSE Metaframe 1.8 Farm that supplies a published
desktop
to users on Wyse 3360 Terminals. I set a default network printer using
defprint for each terminal by name. I am experiencing problems with
users
reporting that they are unable to print to their network printer within
MS
Office documents and receive errors indicating "Windows cannot print due
to
a problem with the current printer setup. Try one or more of the
following:
Print a test page, Make sure the printer is On and Online, Reinstall the
Printer Driver"
These errors occur at least a couple times per day as of late, are not
restricted to just one or two servers, and also occur with multiple
printer
types (recent ones have been HP LaserJet 8000 5e, HP LaserJet 4100 6 and
HP
LaserJet 4000 5e, but it has occurred on LaserJet 5's as well.)
The only way I can fix this (temporarily that is) is to disable
connections,
wait until all users on that server logoff\timeout, go into the registry
on
the problematic server and remove the driver entry for the printer in
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Environments\
Wind
ows NT x86\Drivers\Version-2]. I then reboot the server and re-install
the
drivers on the problematic server using my print server as the source of
the
drivers. My print server only has the version 2 drivers installed.
I need to able to prevent this driver corruption from occurring any
further,
can anyone offer some suggestions? Thanks!
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This Week's Sponsor - RTO Software / TScale
What's keeping you from getting more from your terminal servers? Did you
know, in most cases, CPU Utilization IS NOT the single biggest
constraint to scaling up?! Get this free white paper to understand the
real constraints & how to overcome them. SAVE MONEY by scaling-up rather
than buying more servers.
http://www.rtosoft.com/Enter.asp?ID=147
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