VI.c Adding alternate directory trees
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Normally, only files and directories with null device specifications in their
path names are accepted by the server for display.  If a device specification
is part of the client-supplied filespec, it must specify the Gopher data
directory device.

On occasion, there might be a need to have the server access files or
directories outside the base gopher data directory.  There are two ways to do
this.  First, the GOPHER_DATADIR logical, or the logical device named in the
DataDirectory specification of the configuration file, may be defined as a
search list.  This has the benefit of being totally transparent to the server,
simply adding additional files to the root directory.  Subdirectories may
become problematic, however, due to DIGITAL acknowledged problems with search
lists.

From the OpenVMS Database on DSNLINK:
"OPENIN, DNF, NOSUCHFILE Errors Using Search List Logicals For DIRECTORY"
           "When referencing a directory using a search list of rooted
           directories, ensure that the specified directory exists in all
           of the directory roots in the search list."
and ["Overview of Search List Logicals"]
           "Access to the components of a searchlist are transparent only
           if all components have the same access (protections, existence). 
           If the searchlist components are defined with different
           characteristics, command execution can become inconsistent."

An alternative is to create additional logical devices pointing to these
additional directory trees.  Name these additional logical devices such that
they begin with the same text as the configured DataDirectory device.  For
example, if your configured DataDirectory is "GOPHER_ROOT:[000000]", then any
number of logical devices of the form GOPHER_ROOTx, where x can be any
additional text, will be honored by the server.  Extra-long logical device
names, like GOPHER_ROOT_THIS_ONE_IS_A_REALLY_LONG_ONE, might require
continuation of Path= specifications which use them.

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