IBM 000-8697 User Manual

Page of 702
Product Environment
9-11
How to Set Up Multiple Residency
How to Set Up Multiple Residency
This section describes the six-step installation procedure for multiple OnLine
database servers on the same host machine. Before you perform this
procedure, you already should have installed one OnLine database server as
described in
contains background information that is useful for understanding this
section.
To install multiple residency
1.
Log in as user informix. Copy
$INFORMIXDIR
/etc/tbconfig.std to a
new configuration filename.
2.
Edit the new configuration file with an operating-system editor and
modify the four parameters that are critical to multiple residency. Do
not use
DB-M
onitor.
3.
Set your
TBCONFIG
 environment variable to the new name of the
configuration file.
4.
(Optional) Use
DB-M
onitor to finish tuning the configuration for the
new OnLine database server.
5.
Access
DB-M
onitor and initialize disk space for this independent
OnLine database server.
6.
Ensure that all OnLine users have set their
TBCONFIG
 environment
variable to reflect the correct OnLine database server environment.
Step 1: Create a New Configuration File
The tbconfig.std file is provided as a template for use in setting up additional
OnLine database servers. (Refer to
 for more details about OnLine
configuration files.) The new file that you create must also reside in the
$INFORMIXDIR
/etc
 directory. Name the file in such a way that it is easily
associated with the
SERVERNUM
value contained therein, as well as with its
function. For example, you might select the filename tbcon
PROD3
to indicate
a production environment configuration file with the
SERVERNUM
value of 3.