Apple Workgroup Server 8150/110 - Manual (Page 60)

Using Power Macintosh programs
Programs designed for Power Macintosh computers will provide improved
performance for your server. However, to get the full benefit of this software,
you need to know about two key issues—virtual memory and shared libraries.
Virtual memory
Virtual memory is a feature of Macintosh computers that lets you use space on
a hard disk as additional memory. This feature helps you run large applications
when the server does not contain enough random-access memory (RAM).
However, virtual memory will adversely affect the performance of your server
application programs. Do not turn on virtual memory with your Workgroup
Server 8150.
Shared libraries
Power Macintosh programs use special files called shared libraries. These
files help Power Macintosh programs to run more efficiently, and can be used
by more than one Power Macintosh program simultaneously. Any necessary
shared libraries are installed automatically in the System Folder when you
install Power Macintosh programs.
If a Power Macintosh program requires a shared library and there is not
enough memory available for the shared library, you’ll see a message that the
program could not be opened because there is not enough system memory
available for the shared library. If this happens, quit programs not in use or
install more memory in your server (see “Expanding Memory” in Chapter 3
for more information).
If a required shared library is missing, you’ll see a message that the program
could not be opened because the shared library could not be found. If this
happens, follow the directions that came with your program to reinstall the
program. If the shared library is still missing, contact the software program’s
manufacturer for assistance.
44 Chapter 4 / Using Software With Your Server
Shared libraries are
represented by icons
like this.