3.1.2 Matrix Server Administration Guide

Chapter 7: Configure PSFS Filesystems 116

NOTE: CDSLs will not work if they are accessed through NFS because

NFS resolves the link on the client.

Examples

Locate a Target by Its Hostname

This example uses three servers: serv1, serv2, and serv3. Each server must

have specific configuration files in the /oracle/etc directory. You can use a

CDSL to simplify accessing these server-specific files.

1. Create a subdirectory for each server in /oracle, which is a PSFS

filesystem. Then create an /etc subdirectory in each server directory.

You now have the following directories in the /oracle PSFS filesystem:

/oracle/serv1/etc

/oracle/serv2/etc

/oracle/serv3/etc

2. Populate the directories with the data from the /oracle/etc directory:

cp -r /oracle/etc/* /oracle/serv1/etc/

cp -r /oracle/etc/* /oracle/serv2/etc/

cp -r /oracle/etc/* /oracle/serv3/etc/

3. Edit the files in the server-specific /etc directories as appropriate.

4. Create the CDSL:

ln -s {HOSTNAME}/etc /oracle/etc

The ls -l output looks like this on each server:

ls -l /oracle/etc

lrwxrwxrwx 1 root root 14 Jun 16 16:40 /oracle/etc ->

{HOSTNAME}/etc

If you are logged in on serv1 and access the /oracle/etc symbolic link, the

HOSTNAME keyword resolves to /oracle/serv1/etc. Similarly, if you are on

serv2, the /oracle/etc symbolic link points to /oracle/serv2/etc, and on serv3

it points to /oracle/serv3/etc.

Locate a Target by Its Machine Type

This example uses two servers, serv1 and serv2, that have different

machine types. On serv1, the uname -m command returns i386; on serv2,