Hello,

I've just hooked up my Western Digital MyBook 750G external usb hard drive to my server in order to make some backups. The drive is formated UFS, and it seems to work well.


However, when doing large file transfers (ie, using DUMP or gzip'ing files) I keep getting these errors every so often:

Mar 10 20:08:34 hive kernel: umass0: BBB reset failed, TIMEOUT
Mar 10 20:08:34 hive kernel: (da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 0 46 de 70 cf 0 0 80 0 Mar 10 20:08:34 hive kernel: (da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error Mar 10 20:08:34 hive kernel: (da0:umass-sim0:0:0:0): SCSI Status: Check Condition
Mar 10 20:08:34 hive kernel: (da0:umass-sim0:0:0:0): UNIT ATTENTION asc:24,1
Mar 10 20:08:34 hive kernel: (da0:umass-sim0:0:0:0): Reserved ASC/ASCQ pair
Mar 10 20:08:34 hive kernel: (da0:umass-sim0:0:0:0): Retrying Command (per Sense Data) Mar 10 20:09:49 hive kernel: (da0:umass-sim0:0:0:0): WRITE(10). CDB: 2a 0 46 e4 d1 6f 0 0 80 0 Mar 10 20:09:49 hive kernel: (da0:umass-sim0:0:0:0): CAM Status: SCSI Status Error Mar 10 20:09:49 hive kernel: (da0:umass-sim0:0:0:0): SCSI Status: Check Condition
Mar 10 20:09:49 hive kernel: (da0:umass-sim0:0:0:0): UNIT ATTENTION asc:24,1
Mar 10 20:09:49 hive kernel: (da0:umass-sim0:0:0:0): Reserved ASC/ASCQ pair
Mar 10 20:09:49 hive kernel: (da0:umass-sim0:0:0:0): Retrying Command (per Sense Data)


Every thing *seems* to be working ok, but I really would like to know if my backups are actually worth while.

I am running this on a P4-2.5ghz system with 1.5G of ram. I am using an add-in USB 2.0 card (the mb doesn't support 2.0). The main drive is a 120G WD. The onboard controller is also disabled in the BIOS.

my dmesg and uname -a:

FreeBSD hive.wg.local 7.0-RELEASE FreeBSD 7.0-RELEASE #7: Sun Mar 2 13:46:07 EST 2008 [EMAIL PROTECTED]:/usr/obj/usr/src/sys/HIVE i386

Copyright (c) 1992-2008 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
       The Regents of the University of California. All rights reserved.
FreeBSD is a registered trademark of The FreeBSD Foundation.
FreeBSD 7.0-RELEASE #7: Sun Mar  2 13:46:07 EST 2008
   [EMAIL PROTECTED]:/usr/obj/usr/src/sys/HIVE
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Pentium(R) 4 CPU 2.50GHz (2500.11-MHz 686-class CPU)
 Origin = "GenuineIntel"  Id = 0xf29  Stepping = 9
Features=0xbfebf9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
 Features2=0x4400<CNXT-ID,xTPR>
real memory  = 1610547200 (1535 MB)
avail memory = 1568702464 (1496 MB)
kbd1 at kbdmux0
acpi0: <VIAP4X AWRDACPI> on motherboard
acpi0: [ITHREAD]
acpi0: Power Button (fixed)
Timecounter "ACPI-fast" frequency 3579545 Hz quality 1000
acpi_timer0: <24-bit timer at 3.579545MHz> port 0x408-0x40b on acpi0
cpu0: <ACPI CPU> on acpi0
p4tcc0: <CPU Frequency Thermal Control> on cpu0
acpi_button0: <Power Button> on acpi0
acpi_button1: <Sleep Button> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
agp0: <VIA 8753 (P4X266) host to PCI bridge> on hostb0
agp0: aperture size is 256M
pcib1: <PCI-PCI bridge> at device 1.0 on pci0
pci1: <PCI bus> on pcib1
vgapci0: <VGA-compatible display> port 0xc000-0xc0ff mem 0xd0000000-0xd7ffffff,0xd9000000-0xd907ffff irq 11 at device 0.0 on pci1 xl0: <3Com 3c905-TX Fast Etherlink XL> port 0xd000-0xd03f irq 12 at device 9.0 on pci0
miibus0: <MII bus> on xl0
nsphy0: <DP83840 10/100 media interface> PHY 24 on miibus0
nsphy0:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
xl0: Ethernet address: 00:60:08:bd:eb:bd
xl0: [ITHREAD]
xl1: <3Com 3c905-TX Fast Etherlink XL> port 0xd400-0xd43f irq 10 at device 10.0 on pci0
miibus1: <MII bus> on xl1
nsphy1: <DP83840 10/100 media interface> PHY 24 on miibus1
nsphy1:  10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, auto
xl1: Ethernet address: 00:60:08:bd:eb:7e
xl1: [ITHREAD]
ohci0: <NEC uPD 9210 USB controller> mem 0xdb000000-0xdb000fff irq 5 at device 11.0 on pci0
ohci0: [GIANT-LOCKED]
ohci0: [ITHREAD]
usb0: OHCI version 1.0
usb0: <NEC uPD 9210 USB controller> on ohci0
usb0: USB revision 1.0
uhub0: <NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb0
uhub0: 3 ports with 3 removable, self powered
ohci1: <NEC uPD 9210 USB controller> mem 0xdb001000-0xdb001fff irq 11 at device 11.1 on pci0
ohci1: [GIANT-LOCKED]
ohci1: [ITHREAD]
usb1: OHCI version 1.0
usb1: <NEC uPD 9210 USB controller> on ohci1
usb1: USB revision 1.0
uhub1: <NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1> on usb1
uhub1: 2 ports with 2 removable, self powered
ehci0: <NEC uPD 720100 USB 2.0 controller> mem 0xdb002000-0xdb0020ff irq 12 at device 11.2 on pci0
ehci0: [GIANT-LOCKED]
ehci0: [ITHREAD]
usb2: EHCI version 1.0
usb2: companion controllers, 3 ports each: usb0 usb1
usb2: <NEC uPD 720100 USB 2.0 controller> on ehci0
usb2: USB revision 2.0
uhub2: <NEC EHCI root hub, class 9/0, rev 2.00/1.00, addr 1> on usb2
uhub2: 5 ports with 5 removable, self powered
umass0: <Western Digital My Book, class 0/0, rev 2.00/1.61, addr 2> on uhub2
isab0: <PCI-ISA bridge> at device 17.0 on pci0
isa0: <ISA bus> on isab0
atapci0: <VIA 8233 UDMA100 controller> port 0x1f0-0x1f7,0x3f6,0x170-0x177,0x376,0xd800-0xd80f at device 17.1 on pci0
ata0: <ATA channel 0> on atapci0
ata0: [ITHREAD]
ata1: <ATA channel 1> on atapci0
ata1: [ITHREAD]
acpi_tz0: <Thermal Zone> on acpi0
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
sio0: [FILTER]
atkbdc0: <Keyboard controller (i8042)> port 0x60,0x64 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
kbd0 at atkbd0
atkbd0: [GIANT-LOCKED]
atkbd0: [ITHREAD]
pmtimer0 on isa0
orm0: <ISA Option ROM> at iomem 0xc0000-0xcbfff pnpid ORM0000 on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio1: configured irq 3 not in bitmap of probed irqs 0
sio1: port may not be enabled
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
Timecounter "TSC" frequency 2500106444 Hz quality 800
Timecounters tick every 1.000 msec
ipfw2 (+ipv6) initialized, divert enabled, rule-based forwarding enabled, default to deny, logging disabled
ad0: 114473MB <WDC WD1200JB-00GVA0 08.02D08> at ata0-master UDMA100
acd0: CDROM <HITACHI CDR-8430/0024> at ata1-master PIO4
ast0: TAPE <Seagate STT20000A/8N43> at ata1-slave PIO4
da0 at umass-sim0 bus 0 target 0 lun 0
da0: <WD 7500AAK External 1.61> Fixed Direct Access SCSI-0 device
da0: 40.000MB/s transfers
da0: 715404MB (1465149168 512 byte sectors: 255H 63S/T 91201C)
Trying to mount root from ufs:/dev/ad0s1a


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