REQ : how do I add space to a 5.0 database?

Hi We are using a network monitoring system (Strataview), which uses an Informix database as repository (Apparently it is a 5.0, on a Sun machine). We have some space problems with the database, and we don't want to be purging tables monthly, so the other solution is to add more space to the database. But none of us here have ever used Informix, we use Oracle. What must I do to add more space? As I understand, I must add a new "chunk" the the root dbspace, but I don't know how to do it. Here is some information about the current space : --------------------------------------------------------------------------- ROOTNAME rootdbs # Root dbspace name ROOTPATH /dev/rsd1h # Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 900000 # Size of root dbspace (Kbytes) Here is some information from the dbaccess application : ---------------------------------------------------------------------------- ------------------------ CHUNKS FOR rootdbs Chunk Chunk Pages Pages Full Pathname of Chunk Status Id Offset In Chunk Used 1 0 450000 450000 /dev/rsd1h PO- Dbspace has total of 450000 pages, 0 of which are free Any help will be very welcome. Thanks in advance -- --------------------------------- Eulogio Robles P. Chilesat S.E. erobles@chilesat.net