IBM 000-8697 User Manual

Operating OnLine

From within

DB-M

onitor, select the Parameters menu, Shared-

Memory option to change the maximum number of chunks. Change
the value in the field,

Max # of Chunks.

Reinitialize shared memory (take OnLine offline and then to
quiescent mode) for the change to take effect.

To change the value of

 CHUNKS

 from the command line, use an

editor to edit the file specified by $

.

Change the value of

 CHUNKS

. Reinitialize shared memory (take

OnLine offline and then to quiescent mode) for the change to take
effect.

This section provides instructions for creating a dbspace.

Verify that you will not exceed the maximum number of blobspaces and
dbspaces allowed in your configuration, specified as

DBSPACES

.

You specify an explicit pathname for the initial chunk of the dbspace.
Informix recommends that you use a linked pathname. (Refer to

for further information about the benefits of using linked pathnames. Refer
to

for further information about selecting a chunk pathname. Refer

to

 for guidelines on how to determine where your chunks should

be located on disk.)

If you are allocating a raw disk device, you might need to specify an offset to
preserve track 0 information used by your

UNIX

operating system. (Refer to

 for further information about how to determine if you need an

offset.)

If you are allocating cooked disk space, the pathname is a file in a

UNIX

 file

system.

If you are logged in as user informix, you can create a dbspace within

DB-M

onitor or from the command line. If you are logged in as root, you must

use the command-line option.