IBM 000-8697 用户手册
Product Environment
9-13
How to Set Up Multiple Residency
SERVERNUM
The
SERVERNUM
parameter specifies the unique value associated with this
OnLine configuration. (Values need to be unique within a machine. OnLine
database servers within a network can use the same
database servers within a network can use the same
SERVERNUM
value.) The
name of the configuration file should reflect the value you select for
SERVERNUM
. The default value for
SERVERNUM
is zero. The value cannot
exceed 255. (Refer to
for more details about the role that the
SERVERNUM
value plays in determining the shared-memory key.)
DBSERVER-NAME
The
DBSERVERNAME
parameter specifies the name of this OnLine database
server and is the value that is returned when the
SQL SITENAME
or
DBSERV-
ERNAME
function is executed. This value must be unique throughout the
network on which the host machine is running. The value of
DBSERV-
ERNAME
cannot exceed 18 characters. Valid characters are restricted to digits,
characters, and the underscore. The default value of
DBSERVERNAME
is
ONLINE
.
MSGPATH
The
MSGPATH
parameter specifies the
UNIX
pathname of the OnLine
message file. OnLine messages do not include the
DBSERVERNAME
, which
means it would be impossible for you to sort the messages from the separate
OnLine environments if more than one OnLine database server shared the
same
OnLine environments if more than one OnLine database server shared the
same
MSGPATH
. (Refer to
for a listing of
OnLine messages.)
The default value for
MSGPATH
is /usr/informix/online.log. Refer to
for more details about setting the value of
MSGPATH
.
Step 3: Set Your TBCONFIG Environment Variable
Set your
TBCONFIG
environment variable to the filename of the new config-
uration file. Specify only the filename, not the complete path. OnLine
assumes the file is located in the
assumes the file is located in the
$INFORMIXDIR
/etc
directory. Make sure
that this change has taken effect before you proceed to the next step. (Refer to
for more details about the role of
the TBCONFIG
environment
variable.)