Date: Mon, 30 Jan 2006 08:44:06 -0500 From: FreeBSD Questions <ml.freebsd.questions@gmail.com> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: SCSI negotiation problems, please help! Message-ID: <10549b080601300544i3b0adbc8m37e19a3e1353458e@mail.gmail.com>
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[-- Attachment #1 --]
I have a tape drive that seems to have lost its ability to negotiate
optimal settings.
FreeBSD 5.4-Stable (compiled 13 Sep 2005)
Dell PowerEdge 1750
# uname -a
FreeBSD hr-stc-file2.smartrafficenter.net 5.4-STABLE FreeBSD
5.4-STABLE #0: Tue Sep 13 22:44:46 EDT 2005
root@:/usr/obj/usr/src/sys/HR-STC-FILE2 i386
(from /var/run/dmesg.boot)
ch0 at ahc0 bus 0 target 0 lun 0
ch0: <EXABYTE VXA 1x10 1U A10A> Removable Changer SCSI-4 device
ch0: 80.000MB/s transfers (40.000MHz, offset 32, 16bit)
ch0: 10 slots, 1 drive, 1 picker, 0 portals
...
sa0 at ahc0 bus 0 target 1 lun 0
sa0: <EXABYTE VXA-2 2109> Removable Sequential Access SCSI-2 device
sa0: 80.000MB/s transfers (40.000MHz, offset 32, 16bit)
# camcontrol negotiate ch0
Current Parameters:
(pass1:ahc0:0:0:0): sync parameter: 0
(pass1:ahc0:0:0:0): offset: 0
(pass1:ahc0:0:0:0): bus width: 8 bits
(pass1:ahc0:0:0:0): disconnection is enabled
(pass1:ahc0:0:0:0): tagged queueing is disabled
# camcontrol negotiate sa0
Current Parameters:
(pass2:ahc0:0:1:0): sync parameter: 0
(pass2:ahc0:0:1:0): offset: 0
(pass2:ahc0:0:1:0): bus width: 8 bits
(pass2:ahc0:0:1:0): disconnection is enabled
(pass2:ahc0:0:1:0): tagged queueing is disabled
No matter what I do with camcontrol, I can't get it to change these
parameters--only the user parameters (-U):
# camcontrol negotiate ch0 -a -c -D enable -O 32 -R 40.000 -T disable -W 16
Current Parameters:
(pass1:ahc0:0:0:0): sync parameter: 0
(pass1:ahc0:0:0:0): offset: 0
(pass1:ahc0:0:0:0): bus width: 8 bits
(pass1:ahc0:0:0:0): disconnection is enabled
(pass1:ahc0:0:0:0): tagged queueing is disabled
New Parameters:
(pass1:ahc0:0:0:0): sync parameter: 0
(pass1:ahc0:0:0:0): offset: 0
(pass1:ahc0:0:0:0): bus width: 8 bits
(pass1:ahc0:0:0:0): disconnection is enabled
(pass1:ahc0:0:0:0): tagged queueing is disabled
# camcontrol negotiate sa0 -a -c -D enable -O 32 -R 40.000 -T disable -W 16
Current Parameters:
(pass2:ahc0:0:1:0): sync parameter: 0
(pass2:ahc0:0:1:0): offset: 0
(pass2:ahc0:0:1:0): bus width: 8 bits
(pass2:ahc0:0:1:0): disconnection is enabled
(pass2:ahc0:0:1:0): tagged queueing is disabled
New Parameters:
(pass2:ahc0:0:1:0): sync parameter: 0
(pass2:ahc0:0:1:0): offset: 0
(pass2:ahc0:0:1:0): bus width: 8 bits
(pass2:ahc0:0:1:0): disconnection is enabled
(pass2:ahc0:0:1:0): tagged queueing is disabled
# camcontrol negotiate sa0 -U
Current Parameters:
(pass2:ahc0:0:1:0): sync parameter: 10
(pass2:ahc0:0:1:0): frequency: 40.000MHz
(pass2:ahc0:0:1:0): offset: 32
(pass2:ahc0:0:1:0): bus width: 16 bits
(pass2:ahc0:0:1:0): disconnection is enabled
(pass2:ahc0:0:1:0): tagged queueing is disabled
I've tried everything I can except a reboot, but that can't happen
right now as this is on a production server. I've tried rescanning
the bus; I've tried resetting the bus; I've tried powering the
library/drive off, rescanning the bus to remove the devices, powering
the library/drive back on, and rescanning again to find the devices
again; and no matter what I do, I keep getting these 3.3 MB/s transfer
rates, 8-bit bus widths, and very degraded tape performance. Short of
a reboot, how do I restore the initial negotiation settings from when
the server was initially powered up?
And because I feel like the question is going to be asked... I think
this happened when a coworker cycled power on the tape library. Is
there any way to reinitialize the SCSI card and renegotiate with the
attached devices?
dmesg.boot and kernel config attached.
Thanks!
Kevin
[-- Attachment #2 --]
Copyright (c) 1992-2005 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 5.4-STABLE #0: Tue Sep 13 22:44:46 EDT 2005
root@:/usr/obj/usr/src/sys/HR-STC-FILE2
ACPI APIC Table: <DELL PE1750 >
Timecounter "i8254" frequency 1193182 Hz quality 0
CPU: Intel(R) Xeon(TM) CPU 3.20GHz (3181.07-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0xf25 Stepping = 5
Features=0xbfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,CLFLUSH,DTS,ACPI,MMX,FXSR,SSE,SSE2,SS,HTT,TM,PBE>
Hyperthreading: 2 logical CPUs
real memory = 1073573888 (1023 MB)
avail memory = 1045225472 (996 MB)
FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs
cpu0 (BSP): APIC ID: 0
cpu1 (AP): APIC ID: 1
cpu2 (AP): APIC ID: 6
cpu3 (AP): APIC ID: 7
ioapic0: Changing APIC ID to 8
ioapic1: Changing APIC ID to 9
ioapic2: Changing APIC ID to 10
MADT: Forcing active-low polarity and level trigger for SCI
ioapic0 <Version 1.1> irqs 0-15 on motherboard
ioapic1 <Version 1.1> irqs 16-31 on motherboard
ioapic2 <Version 1.1> irqs 32-47 on motherboard
npx0: <math processor> on motherboard
npx0: INT 16 interface
acpi0: <DELL PE1750> on motherboard
acpi0: Power Button (fixed)
Timecounter "ACPI-safe" frequency 3579545 Hz quality 1000
acpi_timer0: <32-bit timer at 3.579545MHz> port 0x808-0x80b on acpi0
cpu0: <ACPI CPU> on acpi0
cpu1: <ACPI CPU> on acpi0
cpu2: <ACPI CPU> on acpi0
cpu3: <ACPI CPU> on acpi0
pcib0: <ACPI Host-PCI bridge> port 0xcf8-0xcff on acpi0
pci0: <ACPI PCI bus> on pcib0
pci0: <display, VGA> at device 14.0 (no driver attached)
atapci0: <ServerWorks CSB5 UDMA100 controller> port 0x8b0-0x8bf,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 15.1 on pci0
ata0: channel #0 on atapci0
ata1: channel #1 on atapci0
ohci0: <OHCI (generic) USB controller> mem 0xfe100000-0xfe100fff irq 11 at device 15.2 on pci0
usb0: OHCI version 1.0, legacy support
usb0: SMM does not respond, resetting
usb0: <OHCI (generic) USB controller> on ohci0
usb0: USB revision 1.0
uhub0: (0x1166) OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 4 ports with 4 removable, self powered
isab0: <PCI-ISA bridge> at device 15.3 on pci0
isa0: <ISA bus> on isab0
pcib1: <ACPI Host-PCI bridge> on acpi0
pci4: <ACPI PCI bus> on pcib1
amr0: <LSILogic MegaRAID 1.51> mem 0xfcb00000-0xfcb3ffff,0xf0000000-0xf7ffffff irq 18 at device 3.0 on pci4
amr0: <LSILogic PERC 4/Di> Firmware 412W, BIOS H406, 128MB RAM
pcib2: <ACPI Host-PCI bridge> on acpi0
pci3: <ACPI PCI bus> on pcib2
pcib3: <ACPI Host-PCI bridge> on acpi0
pci2: <ACPI PCI bus> on pcib3
bge0: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2002> mem 0xfcd20000-0xfcd2ffff,0xfcd30000-0xfcd3ffff irq 16 at device 0.0 on pci2
miibus0: <MII bus> on bge0
brgphy0: <BCM5704 10/100/1000baseTX PHY> on miibus0
brgphy0: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge0: Ethernet address: 00:0f:1f:64:a0:e8
bge1: <Broadcom BCM5704C Dual Gigabit Ethernet, ASIC rev. 0x2002> mem 0xfcd00000-0xfcd0ffff,0xfcd10000-0xfcd1ffff irq 17 at device 0.1 on pci2
miibus1: <MII bus> on bge1
brgphy1: <BCM5704 10/100/1000baseTX PHY> on miibus1
brgphy1: 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseTX, 1000baseTX-FDX, auto
bge1: Ethernet address: 00:0f:1f:64:a0:e9
pcib4: <ACPI Host-PCI bridge> on acpi0
pci1: <ACPI PCI bus> on pcib4
ahc0: <Adaptec 3950B Ultra2 SCSI adapter> port 0xdc00-0xdcff mem 0xfcf01000-0xfcf01fff irq 20 at device 4.0 on pci1
aic7896/97: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs
ahc1: <Adaptec 3950B Ultra2 SCSI adapter> port 0xd800-0xd8ff mem 0xfcf00000-0xfcf00fff irq 20 at device 4.1 on pci1
aic7896/97: Ultra2 Wide Channel B, SCSI Id=7, 32/253 SCBs
fdc0: <floppy drive controller> port 0x3f7,0x3f0-0x3f5 irq 6 drq 2 on acpi0
fd0: <1440-KB 3.5" drive> on fdc0 drive 0
atkbdc0: <Keyboard controller (i8042)> port 0x64,0x60 irq 1 on acpi0
atkbd0: <AT Keyboard> irq 1 on atkbdc0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model IntelliMouse, device ID 3
sio0: <16550A-compatible COM port> port 0x3f8-0x3ff irq 4 flags 0x10 on acpi0
sio0: type 16550A
orm0: <ISA Option ROMs> at iomem 0xec000-0xeffff,0xcc000-0xcd7ff,0xc9000-0xc97ff,0xc8000-0xc8fff,0xc0000-0xc7fff on isa0
pmtimer0 on isa0
ppc0: parallel port not found.
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
Timecounters tick every 10.000 msec
acd0: CDROM <TEAC CD-ROM CD-224E/K.9A> at ata1-master PIO4
Waiting 5 seconds for SCSI devices to settle
amrd0: <LSILogic MegaRAID logical drive> on amr0
amrd0: 69360MB (142049280 sectors) RAID 5 (optimal)
amrd1: <LSILogic MegaRAID logical drive> on amr0
amrd1: 228990MB (468971520 sectors) RAID 0 (optimal)
sa0 at ahc0 bus 0 target 1 lun 0
sa0: <EXABYTE VXA-2 2109> Removable Sequential Access SCSI-2 device
sa0: 80.000MB/s transfers (40.000MHz, offset 32, 16bit)
pass0 at amr0 bus 0 target 6 lun 0
pass0: <PE/PV 1x3 SCSI BP 1.1> Fixed Processor SCSI-2 device
SMP: AP CPU #3 Launched!
SMP: AP CPU #1 Launched!
SMP: AP CPU #2 Launched!
Mounting root from ufs:/dev/amrd0s1a
ch0 at ahc0 bus 0 target 0 lun 0
ch0: <EXABYTE VXA 1x10 1U A10A> Removable Changer SCSI-4 device
ch0: 80.000MB/s transfers (40.000MHz, offset 32, 16bit)
ch0: 10 slots, 1 drive, 1 picker, 0 portals
[-- Attachment #3 --]
#
# GENERIC -- Generic kernel configuration file for FreeBSD/i386
#
# For more information on this file, please read the handbook section on
# Kernel Configuration Files:
#
# http://www.FreeBSD.org/doc/en_US.ISO8859-1/books/handbook/kernelconfig-config.html
#
# The handbook is also available locally in /usr/share/doc/handbook
# if you've installed the doc distribution, otherwise always see the
# FreeBSD World Wide Web server (http://www.FreeBSD.org/) for the
# latest information.
#
# An exhaustive list of options and more detailed explanations of the
# device lines is also present in the ../../conf/NOTES and NOTES files.
# If you are in doubt as to the purpose or necessity of a line, check first
# in NOTES.
#
# $FreeBSD: src/sys/i386/conf/GENERIC,v 1.413.2.8 2004/10/24 17:42:08 scottl Exp $
machine i386
#cpu I486_CPU
#cpu I586_CPU
cpu I686_CPU
ident HR-STC-FILE2
# To statically compile in device wiring instead of /boot/device.hints
#hints "GENERIC.hints" # Default places to look for devices.
makeoptions DEBUG=-g # Build kernel with gdb(1) debug symbols
options SCHED_4BSD # 4BSD scheduler
options INET # InterNETworking
#options INET6 # IPv6 communications protocols
options FFS # Berkeley Fast Filesystem
options SOFTUPDATES # Enable FFS soft updates support
options UFS_ACL # Support for access control lists
options UFS_DIRHASH # Improve performance on big directories
#options MD_ROOT # MD is a potential root device
#options NFSCLIENT # Network Filesystem Client
#options NFSSERVER # Network Filesystem Server
#options NFS_ROOT # NFS usable as /, requires NFSCLIENT
#options MSDOSFS # MSDOS Filesystem
#options CD9660 # ISO 9660 Filesystem
#options PROCFS # Process filesystem (requires PSEUDOFS)
options PSEUDOFS # Pseudo-filesystem framework
options GEOM_GPT # GUID Partition Tables.
options COMPAT_43 # Compatible with BSD 4.3 [KEEP THIS!]
#options COMPAT_FREEBSD4 # Compatible with FreeBSD4
options SCSI_DELAY=5000 # Delay (in ms) before probing SCSI
#options KTRACE # ktrace(1) support
options SYSVSHM # SYSV-style shared memory
options SYSVMSG # SYSV-style message queues
options SYSVSEM # SYSV-style semaphores
options _KPOSIX_PRIORITY_SCHEDULING # POSIX P1003_1B real-time extensions
#options KBD_INSTALL_CDEV # install a CDEV entry in /dev
#options AHC_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~128k to driver.
#options AHD_REG_PRETTY_PRINT # Print register bitfields in debug
# output. Adds ~215k to driver.
options ADAPTIVE_GIANT # Giant mutex is adaptive.
options QUOTA # Enable disk quotas
device apic # I/O APIC
options SMP
# Bus support. Do not remove isa, even if you have no isa slots
device isa
#device eisa
device pci
# Floppy drives
device fdc
# ATA and ATAPI devices
device ata
#device atadisk # ATA disk drives
#device ataraid # ATA RAID drives
device atapicd # ATAPI CDROM drives
#device atapifd # ATAPI floppy drives
#device atapist # ATAPI tape drives
options ATA_STATIC_ID # Static device numbering
# SCSI Controllers
#device ahb # EISA AHA1742 family
device ahc # AHA2940 and onboard AIC7xxx devices
#device ahd # AHA39320/29320 and onboard AIC79xx devices
#device amd # AMD 53C974 (Tekram DC-390(T))
#device isp # Qlogic family
#device mpt # LSI-Logic MPT-Fusion
#device ncr # NCR/Symbios Logic
#device sym # NCR/Symbios Logic (newer chipsets + those of `ncr')
#device trm # Tekram DC395U/UW/F DC315U adapters
#device adv # Advansys SCSI adapters
#device adw # Advansys wide SCSI adapters
#device aha # Adaptec 154x SCSI adapters
#device aic # Adaptec 15[012]x SCSI adapters, AIC-6[23]60.
#device bt # Buslogic/Mylex MultiMaster SCSI adapters
#device ncv # NCR 53C500
#device nsp # Workbit Ninja SCSI-3
#device stg # TMC 18C30/18C50
# SCSI peripherals
device scbus # SCSI bus (required for SCSI)
device ch # SCSI media changers
device da # Direct Access (disks)
device sa # Sequential Access (tape etc)
#device cd # CD
device pass # Passthrough device (direct SCSI access)
#device ses # SCSI Environmental Services (and SAF-TE)
# RAID controllers interfaced to the SCSI subsystem
device amr # AMI MegaRAID
#device asr # DPT SmartRAID V, VI and Adaptec SCSI RAID
#device ciss # Compaq Smart RAID 5*
#device dpt # DPT Smartcache III, IV - See NOTES for options
#device hptmv # Highpoint RocketRAID 182x
#device iir # Intel Integrated RAID
#device ips # IBM (Adaptec) ServeRAID
#device mly # Mylex AcceleRAID/eXtremeRAID
#device twa # 3ware 9000 series PATA/SATA RAID
# RAID controllers
#device aac # Adaptec FSA RAID
#device aacp # SCSI passthrough for aac (requires CAM)
#device ida # Compaq Smart RAID
#device mlx # Mylex DAC960 family
#device pst # Promise Supertrak SX6000
#device twe # 3ware ATA RAID
# atkbdc0 controls both the keyboard and the PS/2 mouse
device atkbdc # AT keyboard controller
device atkbd # AT keyboard
device psm # PS/2 mouse
device vga # VGA video card driver
#device splash # Splash screen and screen saver support
# syscons is the default console driver, resembling an SCO console
device sc
# Enable this for the pcvt (VT220 compatible) console driver
#device vt
#options XSERVER # support for X server on a vt console
#options FAT_CURSOR # start with block cursor
device agp # support several AGP chipsets
# Floating point support - do not disable.
device npx
# Power management support (see NOTES for more options)
#device apm
# Add suspend/resume support for the i8254.
device pmtimer
# PCCARD (PCMCIA) support
# PCMCIA and cardbus bridge support
#device cbb # cardbus (yenta) bridge
#device pccard # PC Card (16-bit) bus
#device cardbus # CardBus (32-bit) bus
# Serial (COM) ports
device sio # 8250, 16[45]50 based serial ports
# Parallel port
device ppc
device ppbus # Parallel port bus (required)
#device lpt # Printer
#device plip # TCP/IP over parallel
#device ppi # Parallel port interface device
#device vpo # Requires scbus and da
# If you've got a "dumb" serial or parallel PCI card that is
# supported by the puc(4) glue driver, uncomment the following
# line to enable it (connects to the sio and/or ppc drivers):
#device puc
# PCI Ethernet NICs.
#device de # DEC/Intel DC21x4x (``Tulip'')
#device em # Intel PRO/1000 adapter Gigabit Ethernet Card
#device ixgb # Intel PRO/10GbE Ethernet Card
#device txp # 3Com 3cR990 (``Typhoon'')
#device vx # 3Com 3c590, 3c595 (``Vortex'')
# PCI Ethernet NICs that use the common MII bus controller code.
# NOTE: Be sure to keep the 'device miibus' line in order to use these NICs!
device miibus # MII bus support
#device bfe # Broadcom BCM440x 10/100 Ethernet
device bge # Broadcom BCM570xx Gigabit Ethernet
#device dc # DEC/Intel 21143 and various workalikes
#device fxp # Intel EtherExpress PRO/100B (82557, 82558)
#device lge # Level 1 LXT1001 gigabit ethernet
#device nge # NatSemi DP83820 gigabit ethernet
#device pcn # AMD Am79C97x PCI 10/100 (precedence over 'lnc')
#device re # RealTek 8139C+/8169/8169S/8110S
#device rl # RealTek 8129/8139
#device sf # Adaptec AIC-6915 (``Starfire'')
#device sis # Silicon Integrated Systems SiS 900/SiS 7016
#device sk # SysKonnect SK-984x & SK-982x gigabit Ethernet
#device ste # Sundance ST201 (D-Link DFE-550TX)
#device ti # Alteon Networks Tigon I/II gigabit Ethernet
#device tl # Texas Instruments ThunderLAN
#device tx # SMC EtherPower II (83c170 ``EPIC'')
#device vge # VIA VT612x gigabit ethernet
#device vr # VIA Rhine, Rhine II
#device wb # Winbond W89C840F
#device xl # 3Com 3c90x (``Boomerang'', ``Cyclone'')
# ISA Ethernet NICs. pccard NICs included.
#device cs # Crystal Semiconductor CS89x0 NIC
# 'device ed' requires 'device miibus'
#device ed # NE[12]000, SMC Ultra, 3c503, DS8390 cards
#device ex # Intel EtherExpress Pro/10 and Pro/10+
#device ep # Etherlink III based cards
#device fe # Fujitsu MB8696x based cards
#device ie # EtherExpress 8/16, 3C507, StarLAN 10 etc.
#device lnc # NE2100, NE32-VL Lance Ethernet cards
#device sn # SMC's 9000 series of Ethernet chips
#device xe # Xircom pccard Ethernet
# ISA devices that use the old ISA shims
#device le
# Wireless NIC cards
#device wlan # 802.11 support
#device an # Aironet 4500/4800 802.11 wireless NICs.
#device awi # BayStack 660 and others
#device wi # WaveLAN/Intersil/Symbol 802.11 wireless NICs.
#device wl # Older non 802.11 Wavelan wireless NIC.
# Pseudo devices.
device loop # Network loopback
device mem # Memory and kernel memory devices
device io # I/O device
device random # Entropy device
device ether # Ethernet support
#device sl # Kernel SLIP
#device ppp # Kernel PPP
#device tun # Packet tunnel.
device pty # Pseudo-ttys (telnet etc)
#device md # Memory "disks"
#device gif # IPv6 and IPv4 tunneling
#device faith # IPv6-to-IPv4 relaying (translation)
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!
device bpf # Berkeley packet filter
# USB support
#device uhci # UHCI PCI->USB interface
device ohci # OHCI PCI->USB interface
device usb # USB Bus (required)
#device udbp # USB Double Bulk Pipe devices
#device ugen # Generic
#device uhid # "Human Interface Devices"
#device ukbd # Keyboard
#device ulpt # Printer
#device umass # Disks/Mass storage - Requires scbus and da
#device ums # Mouse
#device urio # Diamond Rio 500 MP3 player
#device uscanner # Scanners
# USB Ethernet, requires mii
#device aue # ADMtek USB Ethernet
#device axe # ASIX Electronics USB Ethernet
#device cue # CATC USB Ethernet
#device kue # Kawasaki LSI USB Ethernet
#device rue # RealTek RTL8150 USB Ethernet
# FireWire support
#device firewire # FireWire bus code
#device sbp # SCSI over FireWire (Requires scbus and da)
#device fwe # Ethernet over FireWire (non-standard!)
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