[freebsd-scsi] Disabling Tagged Command Queuing at Boot

[Scott Long]

George Griffin wrote:
> Good afternoon folks,
> 
> There is a question that I've been trying to find an answer to and have been
> referred to this list as a possible place to find a solution.
> 
> Is there any way to disable TCQ on boot? It looks like there's a set of boot
> options for the aic7xxx driver that are -supposed- to work under FreeBSD as
> under linux, but I've not found any way to pass them. I've also looked
> through some of the source and have come across a few flags that look
> related, but are never actually used.
> 
> Trying to use a NetApp R100 drive shelf with an Adaptec 39160 card.
> 

The easiest thing to do is to go into the Adaptec BIOS and turn off the 
Disconnect option for the targets on the bus.  What's happening on your
system that is requiring you to turn off TCQ?

Scott