IBM 000-8697 User Manual

Installation and Initial Configuration

After OnLine is initialized, you can create blobspaces and dbspaces as
desired. If you plan to use blobspaces, Informix recommends that you create
one or two blobspaces before you create a dbspace. The reason for this is the
way that OnLine archives data. During an archive, OnLine temporarily
blocks blobpage allocation in a chunk until the chunk is archived. Since
chunks are archived in order, it is to your advantage to create a blobspace
early to ensure that the chunks in the blobspace receive low chunk ID
numbers. This guarantees that the chunk is archived early in the process and
available to receive blobs for the duration of the online archive. Refer to

 for more information about what happens during an online

archive.

For more information about how to create a blobspace, refer to

For more information about how to create a dbspace, refer to

.

 contains a list of preparatory tasks that must be

performed properly for initialization. If any of these actions are omitted or
performed incorrectly, errors can result.

If you receive an error during initialization, verify that you performed these
tasks properly. If the list does not identify the error, use the following infor-
mation to help you interpret the error message. The source of an initialization
error message could be either OnLine or your

UNIX

 operating system.