From owner-freebsd-scsi Fri Jun 11 9:34:36 1999 Delivered-To: freebsd-scsi@freebsd.org Received: from gatekeeper.iserver.com (gatekeeper.iserver.com [192.41.0.2]) by hub.freebsd.org (Postfix) with ESMTP id 97DFF154C8 for ; Fri, 11 Jun 1999 09:34:25 -0700 (PDT) (envelope-from steveb@iserver.com) Received: by gatekeeper.iserver.com; Fri, 11 Jun 1999 10:34:25 -0600 (MDT) Received: from unknown(192.168.1.7) by gatekeeper.iserver.com via smap (V3.1.1) id xma020934; Fri, 11 Jun 99 10:34:04 -0600 Received: from iserver.com (glacier.orem.iserver.com [192.168.1.111]) by orca.orem.iserver.com [Verio Web Hosting, Inc. 801.437.0200] (8.8.5) id KAA18639 for ; Fri, 11 Jun 1999 10:34:00 -0600 (MDT) Message-ID: <37613B04.958D33C4@iserver.com> Date: Fri, 11 Jun 1999 10:36:21 -0600 From: Steve Bishop X-Mailer: Mozilla 4.5 [en] (X11; I; FreeBSD 2.2.7-RELEASE i386) X-Accept-Language: en MIME-Version: 1.0 To: freebsd-scsi@FreeBSD.ORG Subject: scsi probe at boot time Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Hello, I am having trouble using a Spectralogic 10000 SCSI tape changer. The tape changer locks up during the FreeBSD boot sequence. It locks up right when FreeBSD prints the message: "Waiting 10 seconds for SCSI devices to settle" The changer does not respond anymore after this, and only the two tape drives in the changer are recognized (SONY SDX-500C). This is right when FreeBSD probes the SCSI devices, right? I also used to have the same problem occur earlier in the boot sequence, before the OS even started loading. This was when the SCSI host adapter did it's own probing of the bus. So, I went into the SCSI BIOS, and disabled the "probe-at-boot" function. There is a workaround that I have used successfully. I don't turn the changer on until the server or FreeBSD computer has booted completely. Once that is finished, I issue the following command: "camcontrol rescan bus 0" This successfully recognizes everything and enables or configures the changer for use. The changer does not lock up. How come I can do a rescan and everything is OK, but the SCSI probe during boot causes the tape changer to lock up? Does anyone know a solution or better (i.e. permanent) workaround than the one I currently use? thanks, Steve Bishop Sysadmin/Developer Verio Web Services, Inc. tapehound# camcontrol devlist -v scbus-1 on xpt-193593352 bus 0: < > at scbus-1 target -1 lun -1 (xpt0) scbus0 on ahc0 bus 0: at scbus0 target 2 lun 0 (pass0,sa0) at scbus0 target 3 lun 0 (pass1,sa1) at scbus0 target 6 lun 0 (pass2,ch0) < > at scbus0 target -1 lun -1 () scbus1 on ahc1 bus 0: at scbus1 target 0 lun 0 (pass3,da0) at scbus1 target 2 lun 0 (pass4,da1) < > at scbus1 target -1 lun -1 () scbus2 on ahc2 bus 0: < > at scbus2 target -1 lun -1 () tapehound# dmesg Copyright (c) 1992-1999 FreeBSD Inc. Copyright (c) 1982, 1986, 1989, 1991, 1993 The Regents of the University of California. All rights reserved. FreeBSD 3.1-RELEASE #1: Wed May 26 12:18:05 MDT 1999 root@tapehound.orem.iserver.com:/usr/src/sys/compile/TAPEHOUND Timecounter "i8254" frequency 1193182 Hz CPU: Pentium II/Xeon/Celeron (350.80-MHz 686-class CPU) Origin = "GenuineIntel" Id = 0x652 Stepping=2 Features=0x183fbff> real memory = 67043328 (65472K bytes) avail memory = 62074880 (60620K bytes) Bad DMI table checksum! Preloaded elf kernel "kernel" at 0xf02ff000. Probing for devices on PCI bus 0: chip0: rev 0x03 on pci0.0.0 chip1: rev 0x03 on pci0.1.0 chip2: rev 0x02 on pci0.7.0 chip3: rev 0x02 on pci0.7.3 fxp0: rev 0x08 int a irq 11 on pci0.15.0 fxp0: Ethernet address 00:90:27:62:d1:b7 vga0: rev 0x01 int a irq 10 on pci0.16.0 ahc0: rev 0x01 int a irq 12 on pci0.19.0 ahc0: aic7880 Wide Channel A, SCSI Id=7, 16/255 SCBs ahc1: rev 0x04 int a irq 12 on pci0.20.0 ahc1: aic7895 Wide Channel A, SCSI Id=7, 255 SCBs ahc2: rev 0x04 int b irq 11 on pci0.20.1 ahc2: aic7895 Wide Channel B, SCSI Id=7, 255 SCBs Probing for devices on PCI bus 1: Probing for devices on the ISA bus: sc0 on isa sc0: VGA color <16 virtual consoles, flags=0x0> atkbdc0 at 0x60-0x6f on motherboard atkbd0 irq 1 on isa sio0 at 0x3f8-0x3ff irq 4 flags 0x10 on isa sio0: type 16550A sio1 at 0x2f8-0x2ff irq 3 on isa sio1: type 16550A fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa ppc0 at 0x378 irq 7 on isa ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode nlpt0: on ppbus 0 nlpt0: Interrupt-driven port ppi0: on ppbus 0 plip0: on ppbus 0 vga0 at 0x3b0-0x3df maddr 0xa0000 msize 131072 on isa npx0 on motherboard npx0: INT 16 interface Waiting 10 seconds for SCSI devices to settle ---------------------------------------------------------------------------- sa0 at ahc0 bus 0 target 2 lun 0 sa0: Removable Sequential Access SCSI-2 device sa0: 40.0MB/s transfers (20.0MHz, offset 8, 16bit) sa1 at ahc0 bus 0 target 3 lun 0 sa1: Removable Sequential Access SCSI-2 device sa1: 40.0MB/s transfers (20.0MHz, offset 8, 16bit) da0 at ahc1 bus 0 target 0 lun 0 da0: Fixed Direct Access SCSI-2 device da0: 20.0MB/s transfers (10.0MHz, offset 8, 16bit), Tagged Queueing Enabled da0: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C) da1 at ahc1 bus 0 target 2 lun 0 da1: Fixed Direct Access SCSI-2 device da1: 20.0MB/s transfers (10.0MHz, offset 8, 16bit), Tagged Queueing Enabled da1: 8683MB (17783240 512 byte sectors: 255H 63S/T 1106C) ch0 at ahc0 bus 0 target 6 lun 0 ch0: Removable Changer SCSI-2 device ch0: 3.300MB/s transfers ch0: 42 slots, 2 drives, 1 picker, 1 portal To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message