We have an older Adaptec 5805 RAID controller on our CentOS 5 server. (I added RHEL 5 to the question because of the similarity in these Linux distributions.) An Adaptec 8805 controller was recently added, but it is not detected by even a recent version v.3.03 of Adaptec's command line utility arcconf
.
The reason it is not detected is that the currently installed AACRAID driver from Adaptec is version 1.1.5, but the first driver version that supports the new Adaptec 8805 on RHEL 5 is v1.2.1-40300.
This is complicated by the latest driver version that supports the older Adaptec 5805 being 1.1.7-29100.
It looks like to use both RAID controllers at the same time, two versions of the same driver (which is in form of a kernel module) needs to be installed.
Is there a safe way to have both versions 1.1.7 and 1.2.1 of Adaptec's RAID controller driver installed? How can this be done?