Hi Ben, there is still the Adaptec timeout bug in Debian Wheezy. We already reported it in Bug #705048 for Debian Squeeze. But the problem is exactly the same in Wheezy.
The aacraid driver in Wheezy (Build 28000, same as Squeeze) has a serious bug which makes Adaptec raids under high io load unusable. Please see http://ask.adaptec.com/app/answers/detail/a_id/17151/ If it would be possible to backport a newer aacraid driver for the next point release (Build 29900, 30300 or even 40300 work fine) would really be great. -- Mit freundlichen Grüßen Dominik Dausch