IBM 000-8697 Benutzerhandbuch
9-12
IBM Informix OnLine Database Server Administrator’s Guide
How to Set Up Multiple Residency
Step 2: Edit the Configuration File for the New OnLine
Use an operating-system editor to edit the parameters in the new configu-
ration file. Do not use
ration file. Do not use
DB-M
onitor for this task. If you use
DB-M
onitor, you will
edit the values of the existing OnLine configuration file, and not the new one
as you intend. (
as you intend. (
DB-M
onitor accesses the OnLine configuration indicated by
TBCONFIG
at the time.)
In the new configuration file, change the following four configuration
parameters:
parameters:
■
ROOTPATH
■
SERVERNUM
■
DBSERVERNAME
■
MSGPATH
ROOTPATH
The
ROOTPATH
parameter specifies the location of the root dbspace for this
OnLine database server. The root dbspace location must be unique for every
OnLine configuration.
OnLine configuration.
Important: You can use the same value for
ROOTPATH
if you are nesting several root
dbspaces within the
ROOTPATH
partition. That is, if the value of
ROOTSIZE
and the
ROOTOFFSET
define a unique portion of the partition, multiple OnLine database
servers can share the same
ROOTPATH
.
If the root dbspace is mirrored, you must also ensure that the location of the
root dbspace mirror, is unique. (The same situation exists if you are nesting
several mirrors within the same partition.
root dbspace mirror, is unique. (The same situation exists if you are nesting
several mirrors within the same partition.
MIRRORPATH
need not be unique.)
Refer to
for more general information about setting the value of
ROOTPATH
and
for more information about
MIRRORPATH
. Also
consider whether offsets to the root dbspace or its mirror are required. If
offsets are needed, specify them with the
offsets are needed, specify them with the
ROOTOFFSET
and
MIRROROFFSET
parameters.