> Plant, Dean wrote: > > Simple fix, > > > > Adaptec & CentOS = :-( > > LSI & CentOS = :-) > > Which is why after a few hours of testing I decided to indeed buy a > couple of LSI cards to test with -- far better than a lot of > frustration. > > But, meanwhile, I decided to test one more thing: just > suppose that the > SCSI auto-negotiation, which worked fine before, had suddenly given up > in version 3.0 of the aic79xx driver? > > I forced the transfer rate in the Adaptec BIOS for those IDs to the > maximum that my Infortrend could support (U160) and for good measure > disabled "Disconnect" as well. Then, rebooted into 2.6.18-8.1.6&8, and > it worked: User==Goal==Curr==160.0 MB/s. > Apparently, the latest aic79xx driver V3.0 does no longer support > auto-negotiation, whereas all drivers <=1.3.11 did negotiate > correctly. > > Michael, maybe that works for you as well (unless your tapedrive > actually does do U320)? I did the same (changed the speed in the BIOS settings) and it's working. I tried it at 80 but I think I'm going to bump it to 160 and see if it works. I still wish I could figure out why the adaptec kernel driver won't install though. Maybe I'll try downloading the source and manually compiling the kernel module.