On 10/31/07, Norm Jacobs <[EMAIL PROTECTED]> wrote: > Mike Gerdts wrote: > > It seems as though printers.conf could point to localhost in the > > "master" zone and the clones would then also point to their respective > > selves. Is there something broken with that approach? > > > Not that we don't see it, but we don't recommend configuring more than > one system (or zone in your situation) as a print server for a network > attached printer. Doing so can cause starvation and doesn't provide you > with an accurate view of the print queue because there are multiple > queues feeding the device. The bottom line there is that you can end up > submitting a print job, appear to be printing or ready to print and sit > there while other systems (or zones) are busy printing copies of the > phone book. Every time you check the queue, you are either "printing" > or waiting for the device, but the activity on the device is invisible > to your system or zone. Now, if the printer in question isn't going to > be particularly busy or is only really used by a small number of people, > it's not a real problem.
In the general case, I agree with you. This, however, is something more of an "enterprise print architecture" argument rather than addressing the zone configuration. There are cases where a local print queues for the same physical printer may be appropriate. For example, if I have a node-locked licensed application that prints in a format that is not understood by the printer, the local print queue may act as a filter that translates to PS or PCL then forwards to a traditional print server that feeds print jobs to the real printer. If the print server does not have a license for the app (or is otherwise incapable of running the app), it may not be able to use the application to do the file conversion. Several years back I dealt with engineering apps that would generate 100's of pages of garbage if File->Print was used. If the print queue recognized the print job format and put it through the right filter (that called the app in command line mode to do a conversion) it would print a nice single page drawing. -- Mike Gerdts http://mgerdts.blogspot.com/ _______________________________________________ zones-discuss mailing list email@example.com