From owner-freebsd-stable Tue Jul 21 12:38:23 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id MAA23503 for freebsd-stable-outgoing; Tue, 21 Jul 1998 12:38:23 -0700 (PDT) (envelope-from owner-freebsd-stable@FreeBSD.ORG) Received: from orion.aye.net (orion.aye.net [206.185.8.9]) by hub.freebsd.org (8.8.8/8.8.8) with SMTP id MAA23485 for ; Tue, 21 Jul 1998 12:38:16 -0700 (PDT) (envelope-from rabtter@orion.aye.net) Received: (qmail 29946 invoked by uid 3759); 21 Jul 1998 19:39:11 -0000 Date: Tue, 21 Jul 1998 15:39:11 -0400 (EDT) From: "B. Richardson" To: Tom cc: freebsd-stable@FreeBSD.ORG Subject: Re: Timed out while idle :-( In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Have only one drive per channel at the moment (still just testing), therefore each drive should be terminated. A lot of folks seem to be using the CAM drivers on adaptecs with good success, just not me. Brands that use the NCR 875 chipset? - Barrett Richardson rabtter@orion.aye.net On Tue, 21 Jul 1998, Tom wrote: > > On Tue, 21 Jul 1998, B. Richardson wrote: > > > Started out with 2.2.5 and an adaptec 2940 and two (unterminated) > > Seagate drives and everything was fine. Added a 3940, a Quantum > > drive, installed 2.2-19980629-RELEASE and cam drivers on 6/29. > > The message below appeared. The quantum was terminated, the seagates > > were not, so I terminated the seagates (at this point all three drives > > were terminated via a termination block that was on an adapter that > > the hotswappable drives plugged into). The ugly message came back, > > You can't just terminate at whim. The last drive in a SCSI chain must > be terminated. No more, no less. Terminating all drives is very bad. > > > but not as quickly. After some juggling, I discovered that the > > seagates were not happy being terminated with the termination block > > on the hot swap adapters. I got some active terminators and terminated > > a single seagate with it. Then the problem would alway appear on > > places other than that drive so I thought it was fixed. As a final > > test, I ran bonnie on with the two seagates only in the machine, each > > on a separate channel, and each terminated with an active terminator. > > The ugly message returned. Been struggling with it since 6/29 and > > about to scrap the idea. This was to be a squid box (performs really > > well until filesystems freeze) and this project is at the do or die > > phase. My client is going back into the loop of proprietary > > hardware/software if I can't make it fly. If I can make it fly, they > > want to build several large scale systems. > > I've always found Seagate drives to be stable with the Adaptec driver (I > only use Barracuda 4XL or 4LP). Quantum drives are another story. > > I would try an NCR 875 based card. > > Tom > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message