Well, something is getting cached including the volume sizes for these devices. I deleted one volume, created another and assigned the same LUN number, the device stayed the same this time /dev/sdc. The problem begins with the volume size, the original volume was 30GB where as the new volume is 50GB.... The information is stored somewhere and I need to be able to get rid of it somehow.
I did reboot and all volumes that no longer are available are gone. My /dev/sdc also got assigned as /dev/sda and the old /dev/sda is now assigned /dev/sdb. Volume size are correct and updated.
How do you do this without reboot?
I am using QLogic's dynamic volume scanner to refresh this information.