From owner-freebsd-questions Mon Mar 19 6:51:24 2001 Delivered-To: freebsd-questions@freebsd.org Received: from brunel.uk1.vbc.net (brunel.uk1.vbc.net [194.207.2.8]) by hub.freebsd.org (Postfix) with ESMTP id ECCB837B718 for ; Mon, 19 Mar 2001 06:51:20 -0800 (PST) (envelope-from tdc@brunel.uk1.vbc.net) Received: from localhost (tdc@localhost) by brunel.uk1.vbc.net (8.11.0/8.11.0) with ESMTP id f2JEpDE63833 for ; Mon, 19 Mar 2001 14:51:14 GMT Date: Mon, 19 Mar 2001 14:51:13 +0000 (GMT) From: Tom Crowley To: freebsd-questions@FreeBSD.ORG Subject: RAID CRC errors? Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Hello I've been stuck for days on a problem with a SCSI array. The drives we're using are 8 IBM Ultrastars model DPSS-318350, the cards are (I think reasonably old) Adaptec 29160's (two of them) The drives are connected to the main chassis from a separate drive array via two external SCSI cables. The drives are enclosed by removable caddies, four drives to each SCSI cable (of which there are two). I've switched all of the drives off, except one (SCSI id 0) which I have swapped from card to card. I have swapped every component to check for faulty hardware. However, when I get to the actual installation (past configuring everything, just as it starts writing to the hard drive), it panics with a crc error. The exact error (seen by pressing Alt+F2) is: ------------------------------------ CRC Value Mismatch (da0:ahc0:0:0:0) parity error detected in Data-in phase. SEQADDR(0x19f) SCSIRATE(0xc2) ------------------------------------ This is repeated several times, then: ------------------------------------- (da0:ahc0:0:0:0): . CDB: 8 0 0 0 1 0 (da0:ahc0:0:0:0): ABORTED COMMAND asc:48,0 (da0:ahc0:0:0:0): da0: reading primary partition table: error reading table fsbn0 DEBUG: Add mapping for /dev/cuaa0 to sl0 DEBUG: Add mapping for /dev/cuaa1 to sl0 (da1:ahc0:0:1:0): . CDB: a 0 0 0 1 0 (da1:ahc0:0:1:0): ABORTED COMMAND asc:47,0 (da1:ahc0:0:1:0): Sysinstall: write: Input/output error init died(signal 0, exit 1) ------------------------------------- (I should point out, that this was with all 8 drives attatched, but it's pretty much the same with one drive) Does anyone know what this means, and better yet, how to fix it? If I can provide any more information, please let me know! Thankyou, Tom. == Tom Crowley VBCnet GB Ltd Maggs House 78 Queens Road Clifton Bristol BS8 1QX To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message