OSF DCE Administration Guide--Introduction

Global and Cell Considerations
2.4.2 DFSAdministrative Lists
DFS administrative lists are files that define the principals and groups that can perform
actions affecting specific server processes on a server machine. There is one DFS
administrative list for each DFS server process running on a machine. For example, a
server’s admin.bos file defines who has administrative rights to the BOS server
(bosserver), and thus determines who can manipulate and maintain server processes on
that one server. Groups, as well as individual users, can be placed on an administrative
list. Each server machine stores administrative lists for its processes on its local disk. A
process automatically creates its initial administrative list when it is started if the list
does not already exist on the local disk of the machine.
2.4.3 Determining the Roles of DFS Machines
Follow the recommendations in the the when you assign roles to the DFS machines in
your cell.
The first DFS machine that you configure during DCE installation and configuration
(described in Chapter 9) needs to function as a System Control Machine. The System
Control Machine is the server that distributes DFS configuration information. Next you
configure a Fileset Location Database Server, which is the server that maintains the
fileset location database. The DCE installation and configuration script assumes that the
root.dfs fileset, which is the fileset that corresponds to the top (/.:/fs) level of the file tree,
is located on the Fileset Location Database Server. Section 2.4.5 and the contain further
information about root.dfs.
Machines that you configure as DFS servers can run the processes required to be DFS
File Servers. Be sure the machine you choose has enough space to store LFS filesets.
The amount of free space you need depends on how much data you plan to store in LFS
filesets. Filesets on File Servers can store DFS client binaries in addition to user files.
These filesets can also be distributed on other file server machines in your cell. In
addition, if your domain has only one server machine, this machine must run all
processes and fill all required machine roles. For example, in addition to being a System
Control Machine, this machine must be a File Server and a Fileset Location Database
Server. If your domain has three or more DFS server machines, three machines need to
store DFS databases. An odd number of DFS database machines is recommended.
2.4.4 Setting Up the DFS File Tree
Follow the recommended conventions in this section when you set up your DFS file tree.
(For more information about this process, see the .
Below /.:/fs are directories that help organize your DFS environment, such as
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