> Re: tagged queueing. I've been running with it enabled and
> CMS_PER_LUN set to 8 for a couple of months with no problems.
> However, someone else has posted here saying that data corruption
> occurs if you use more than one drive with those settings.
>
> Anyone have any definitive info on this?
> -Sudish
>
I can't call this definitive, and my controller is a straight 2940 but...
I've been using tagged queueing with 8 commands per LUN since the day it
came out with no (additional) problems. My system currently has 3 2gig drives for
linux. In 2.0.27 (!only!) I have seen kernel stack corruption, but only when
running updatedb. This has happened twice.
The only problem I have with the aic7xxx driver is with SCSI-I devices
(old EXB-8200) since about 2.0.13. Heck, who needs backups anyway.
My filesystems have been through hell with 2.1.x induced oopsies (I help a lot),
so I don't _think_ tagged queueing with multiple drives is a problem.
Does anyone have a filesystem thrasher to give it a real workout?
-Mike