Date: Tue, 20 Apr 1999 11:33:14 -0400 From: Barry Lustig <barry@lustig.com> To: stable@freebsd.org, scsi@freebsd.org Subject: SCSI Failure during Amanda Backup (Unexpected busfree) Message-ID: <19990420153315.2118.qmail@devious.lustig.com>
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First the problem: Starting on 4/3, my amanda backups have started failing. At the point of failure the following appears on the console: (sa0:ahc0:0:5:0): SCB 0x4 - timed out while idle, LASTPHASE == 0x1, SEQADDR == 0x9 (sa0:ahc0:0:5:0): Queuing a BDR SCB (sa0:ahc0:0:5:0): Bus Device Reset Message Sent (sa0:ahc0:0:5:0): no longer in timeout, status = 34b ahc0: Bus Device Reset on A:5. 1 SCBs aborted Unexpected busfree. LASTPHASE == 0x0 SEQADDR == 0x5d My system consists of an Asus P2B-DS motherboard: ahc0: <Adaptec aic7890/91 Ultra2 SCSI adapter> rev 0x00 int a irq 19 on pci0.6.0 ahc0: aic7890/91 Wide Channel A, SCSI Id=7, 16/255 SCBs sa0 at ahc0 bus 0 target 5 lun 0 sa0: <Quantum DLT4000 D782> Removable Sequential Access SCSI-2 device sa0: 10.000MB/s transfers (10.000MHz, offset 15) da1 at ahc0 bus 0 target 1 lun 0 da1: <IBM DGHS18U 0350> Fixed Direct Access SCSI-3 device da1: 40.000MB/s transfers (20.000MHz, offset 15, 16bit), Tagged Queueing Enabled da1: 17501MB (35843670 512 byte sectors: 255H 63S/T 2231C) changing root device to da0s1a da0 at ahc0 bus 0 target 0 lun 0 da0: <IBM DCAS-34330W S65A> Fixed Direct Access SCSI-2 device da0: 40.000MB/s transfers (20.000MHz, offset 15, 16bit) da0: 4134MB (8467200 512 byte sectors: 255H 63S/T 527C) cd0 at ahc0 bus 0 target 6 lun 0 cd0: <TOSHIBA CD-ROM XM-6201TA 1037> Removable CD-ROM SCSI-2 device cd0: 10.000MB/s transfers (10.000MHz, offset 16) cd0: cd present [101210 x 2048 byte records] Filesystem 1K-blocks Used Avail Capacity Mounted on /dev/da0s1a 127023 23582 93280 20% / /dev/da0s1h 1688711 861751 691864 55% /usr /dev/da0s1g 508143 448475 34261 93% /usr/obj /dev/da0s1f 1016303 706570 228429 76% /usr/ports /dev/da0s1e 254063 126773 106965 54% /var /dev/da1s1e 17369075 10515107 5464442 66% /d1 Remote machine: /dev/sd0a 998204 729067 239190 75% / I am using all 3 SCSI connectors on the motherboard. The 50 pin connector connects only the CDROM, which is properly terminated. The 68pin Ultra connector goes to the back of the machine where the DLT connects to it via a cable. It also, is properly terminated. The 2 disk drives are internal and are connected to the Ultra2 connector with the Adaptec Ultra2 cable (with terminator on the end). I've upgraded the firmware in the DLT to the latest available on the Quantum ftp site. Amanda backs up the remote machine and all partitions other than da1s1e to /d1/dumps and then dumps that to tape. This part of the backup works fine. The problem occurs when amanda is backing up da1s1e directly to tape, sometime during the dump it fails. I've seen anywhere from 3 to 7 GB dumped sucessfully before the failure. This same setup had been running without problems for months. Any ideas as to what is happening? I am running 3.1 Stable cvsupped on 4/17. Thanks, barry To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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