Ok, I am using an adaptec 2120S scsi raid card and a 3ware 7002 ide raid card on CentOS 3.5 (practically RHEL 3).
Sometimes, the O/s will just print "Queue 6 full, 0 outstanding." repeatedly and the server goes dead. Now it could be the scsi drivers, but what I would like to know is how to use new drivers instead of the old ones but not having to compile them into a new kernel.
I have to use the older CentOS 3.5 because plesk does not work with CentOS 4/4.1 (i tried and its not a case of changing /etc/redhat-release, its got a problem with libraries).
CentOS 4/4.1 work perfectly, so i'm assuming for the most part that its the older O/s and therefore the drivers. I assume the newer drivers will be on the 4.1 disks, but I don't know what they will be named (.img?) and where i can put them after i have found them for linux to use them instead.