From owner-freebsd-hardware Fri May 25 9:41:39 2001 Delivered-To: freebsd-hardware@freebsd.org Received: from beppo.feral.com (beppo.feral.com [192.67.166.79]) by hub.freebsd.org (Postfix) with ESMTP id 26F4337B423 for ; Fri, 25 May 2001 09:41:36 -0700 (PDT) (envelope-from mjacob@feral.com) Received: from zeppo.feral.com (IDENT:mjacob@zeppo.feral.com [192.67.166.71]) by beppo.feral.com (8.11.3/8.11.3) with ESMTP id f4PGfXg06238; Fri, 25 May 2001 09:41:33 -0700 (PDT) (envelope-from mjacob@feral.com) Date: Fri, 25 May 2001 09:41:32 -0700 (PDT) From: Matthew Jacob Reply-To: mjacob@feral.com To: Eric Sproul Cc: freebsd-hardware@FreeBSD.ORG Subject: Re: problem with tape drive? In-Reply-To: <3B0E74D4.2C293F35@cstone.net> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-hardware@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org The initial problem is a timeout when trying to write filemarks- all else falls from that. Somebody else had a mammoth that had this problem, IIRC. Seemed it was f/w related, or possibly media related, but I don't know if they solved it. The Mammoth is getting 60 seconds to write a filemark. That ought to be enough. > Hi, > I'm using an Exabyte EXB-210 tape changer with one Mammoth drive under > 4.3-RELEASE with Amanda. The past two nights, Amanda has reported > failures while writing backups to tape. I noticed the following > messages in dmesg: > > (sa0:ahc1:0:6:0): SCB 0x4 - timed out while idle, SEQADDR == 0x8 > STACK == 0x3, 0x17c, 0x166, 0x0 > SXFRCTL0 == 0x80 > ahc1: Dumping Card State at SEQADDR 0x8 > SCSISEQ = 0x12, SBLKCTL = 0x6, SSTAT0 0x0 > SCB count = 20 > Kernel NEXTQSCB = 3 > Card NEXTQSCB = 3 > QINFIFO entries: > Waiting Queue entries: > Disconnected Queue entries: 0:4 > QOUTFIFO entries: > Sequencer Free SCB List: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 > 20 21 22 23 24 25 26 27 28 29 30 31 > Pending list: 4 > Kernel Free SCB list: 14 15 16 17 18 19 0 1 2 5 6 7 8 9 13 12 11 10 > Untagged Q(6): 4 > (sa0:ahc1:0:6:0): Queuing a BDR SCB > (sa0:ahc1:0:6:0): Bus Device Reset Message Sent > (sa0:ahc1:0:6:0): no longer in timeout, status = 34b > ahc1: Bus Device Reset on A:6. 1 SCBs aborted > (sa0:ahc1:0:6:0): WRITE FILEMARKS. CDB: 10 0 0 0 2 0 > (sa0:ahc1:0:6:0): UNIT ATTENTION csi:0,0,0,44 asc:29,0 > (sa0:ahc1:0:6:0): Power on, reset, or bus device reset occurred > (sa0:ahc1:0:6:0): failed to write terminating filemark(s) > (sa0:ahc1:0:6:0): tape is now frozen- use an OFFLINE, REWIND or MTEOM > command to > clear this state. > > > Here's the probe for ahc1 and sa0: > > ahc1: port 0xe800-0xe8ff mem > 0xfebef000-0xfebeffff irq 10 at device 11.1 on pci0 > aic7896/97: Wide Channel B, SCSI Id=7, 32/255 SCBs > > sa0 at ahc1 bus 0 target 6 lun 0 > sa0: Removable Sequential Access SCSI-2 > device > sa0: 10.000MB/s transfers (10.000MHz, offset 15) > > The SCSI controller is integrated on the Tyan S1837 motherboard. Can > anyone tell me what happened here? It is not a persistent problem > because after I noticed the failures, I flushed the remaining dumps > without incident. > > Thanks in advance! > Eric > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hardware" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hardware" in the body of the message