Date: Wed, 6 Aug 2003 11:10:08 -0400 From: Don Bowman <don@sandvine.com> To: "'Justin T. Gibbs'" <gibbs@scsiguy.com>, Don Bowman <don@sandvine.com>, "'freebsd-scsi@freebsd.org'" <freebsd-scsi@freebsd.org>, "'aic7xxx@freebsd.org'" <aic7xxx@freebsd.org> Subject: RE: Ongoing U320 AIC7902 Seagate ST318453LW issues, SCB timed out Message-ID: <FE045D4D9F7AED4CBFF1B3B813C8533702742167@mail.sandvine.com>
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> From: Justin T. Gibbs [mailto:gibbs@scsiguy.com] > > I'm continuing to test without the throttle. I'm @ a loss for why > > it tracks some systems and not others. > > > > There doesn't seem to be a reliable way to drop the number of > > tags since the system may not always come up. I don't think > > there's an option in the kernel to do so. > > Just add a call to camcontrol early in the rc process, prior to > fsck starting up. camcontrol is on the root filesystem. You can > also modify the ahd driver to tell cam that it can only handle 32 > commands per-target. Sadly under some circumstances, the system will not get to the point of loading files from the hard disk. The kernel loads (since the bios loads its), but the rc files don't. This is rare, perhaps 1 reboot in 300-400. But i've got an awful lot of these in my lab :) I will try your patch.
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