Disk Bottleneck on HP-9000 and Informix 5.07

We have an HP-9000 K260 2 way, with the database on 4 2gb FWD disks off a single controller in a High Availability Chasis. 2 of the disks are showing at 100% utilization most of the time, with the other 2 at 20%. We are using raw disk space, so can not use disk striping to try and balance the load. We are thinking about creating more than one dbspace and attempting to load the main tables in a more balanced way. The database is about 6GB in size. Any suggestions for either monitoring the system to narrow down the specific problem areas, or for general tuning. We have Standard Informix 5 utilities and HP Glance. -- ----------------------------------------------------------------------- | Shaun Mumford | P O Box UA 325 | Phone + 263 4 739944 | | Systems Consultant | Union Avenue | Fax + 263 4 704946 | | C F Tulley Associates | Harare, Zimbabwe | Cell + 263 4 11 600 920 | -----------------------------------------------------------------------