Hi,
Here is a snippet of release note of 10.0.UC3.
1.4.2.2.3 Managing the tblspace tblspace

You have enhanced flexibility in managing the tblspace tblspace. The
tblspace tblspace is a set of pages that describe the location and
structure of all tblspaces in a given dbspace. Use the onspaces utility
to move or drop the chunk containing the tblspace tblspace.

You can also specify the size of the first extent and of subsequent
extents when dbspaces are created:
* Use the TBLTBLFIRST and TBLTBLNEXT configuration parameters to

You can also specify the size of the first extent and of subsequent
extents when dbspaces are created:
* Use the TBLTBLFIRST and TBLTBLNEXT configuration parameters to
specify the size of the extents in the root dbspace. You must set
these configuration parameters before creating the root dbspace.
* Use the onspaces utility to specify the size of non-root dbspaces
during creation.

This feature allows you to reduce the number of tblspace tblspace
extents and reduce the frequency of cases where those extents are placed
in non-primary chunks.

These features are primarily documented in the IBM Informix Dynamic
Server Administrator's Guide and IBM Informix Dynamic Server
Administrator's Reference.

See IDS Administrator's Reference.




--
Tsutomu Ogiwara from Tokyo Japan.





>From: vomaringo@yahoo.com
>Reply-To: vomaringo@yahoo.com
>To: informix-list@iiug.org
>Subject: ids10.force to drop a chunk
>Date: 21 Nov 2005 07:25:37 -0800
>
>hello,
>i get a dbspace with 2 chunk: one is used by a database and one is down
>and empty.
>i thought ids10 could do the following:
>drop database mydb;
>onspaces -d myspace -f
>but onspaces refuse with : Cannot drop a 'dbspace' using the -f flag.
>Any idea.
>Thanks.
sending to informix-list