IBM 000-8697 Manual Do Utilizador

IBM Informix OnLine Database Server Administrator’s Guide

Access

DB-M

onitor or use an operating-system editor to modify other tuning

modifications to the configuration parameters if you wish. (If you execute
tbmonitor

 to use

DB-M

onitor, the configuration values that appear in

DB-M

onitor are read from the configuration file specified by the

TBCONFIG

environment variable.)

When you initialize disk space for this OnLine database server, either
through

DB-M

onitor or by executing the tbinit process at the command line,

 takes as input the values in

$INFORMIXDIR

$TBCONFIG

.

As you create new blobspaces and/or dbspaces for this OnLine database
server, be sure that each chunk is assigned to a unique location on the device.
OnLine does not allow you to assign more than one chunk to the same
location within a single OnLine environment, but it remains your responsi-
bility as administrator to make sure that chunks belonging to different
OnLine database servers do not overwrite each other.

You might need to verify that your users understand the function of the

TBCONFIG

 environment variable. If a user’s environment supports two or

more OnLine database servers, the user must reset the TBCONFIG
environment variable each time he or she changes environments. Refer to

 for more information about the role of

TBCONFIG

.