Date: Tue, 8 Dec 1998 11:22:18 -0500 (EST) From: "Eric D. Fehr" <fehr@idirect.com> To: freebsd-questions@FreeBSD.ORG Subject: Device names (SCSI in particular) Message-ID: <Pine.BSF.4.05.9812081107440.21797-100000@proteus.idirect.com>
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Hi. I appear to need a refresher in the device name system used on
FreeBSD, or else I have encountered a bug in the SCSI drive support.
Here is my problem:
I have a system with 14 SCSI drives connected to an Adaptec 7895
controller (dual channel Ultra SCSI). There are 7 devices on each
channel, with the drives on channel one using device ID #'s 0-6, and the
other channel using device ID #'s 8-14. Please ignore the obvious
bandwidth starvation here...
The first ten drives are assigned by the system as da0-da9. All is fine
there, I can use disklabel to label them without any problems.
The problem comes with the last 4 drives. The system calls drive #11
da10, which appears to confuse disklabel when it attempts to write the
label to the drive. It can read it no problem, via a:
disklabel da10
(which gives all of the proper info for the drive, as far as type & model)
but doing a:
disklabel -w da10 auto
gives:
disklabel: Operation not supported by device
All 14 drives are Seagate ST118273LW.
To the best of my knowledge, it is confusing this drive with da1.
I have been trying to track this down in source code, but have been
unsuccessfull so far. Anybody have any possible ideas?
Thanks,
Eric
Useful info:
uname -a:
FreeBSD momma.bigmomma.com 3.0-RELEASE FreeBSD 3.0-RELEASE #0: Mon Dec 7
18:48:57 GMT 1998 root@momma.bigmomma.com:/usr/src/sys/compile/MOMMA i386
dmesg:
Copyright (c) 1992-1998 FreeBSD Inc.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.
FreeBSD 3.0-RELEASE #0: Mon Dec 7 18:48:57 GMT 1998
root@momma.bigmomma.com:/usr/src/sys/compile/MOMMA
Timecounter "i8254" frequency 1193182 Hz cost 3028 ns
Timecounter "TSC" frequency 448802821 Hz cost 114 ns
CPU: Pentium II (quarter-micron) (448.80-MHz 686-class CPU)
Origin = "GenuineIntel" Id = 0x652 Stepping=2
Features=0x183fbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR,PGE,MCA,CM
OV,PAT,PSE36,MMX,<b24>>
real memory = 268435456 (262144K bytes)
avail memory = 258379776 (252324K bytes)
Bad SMBIOS table checksum!
Probing for devices on PCI bus 0:
chip0: <Intel 82443BX host to PCI bridge> rev 0x02 on pci0.0.0
chip1: <Intel 82443BX host to AGP bridge> rev 0x02 on pci0.1.0
chip2: <Intel 82371AB PCI to ISA bridge> rev 0x02 on pci0.7.0
chip3: <Intel 82371AB USB host controller> rev 0x01 int d irq 255 on
pci0.7.2
chip4: <Intel 82371AB Power management controller> rev 0x02 on pci0.7.3
vga0: <S3 ViRGE DX/GX graphics accelerator> rev 0x01 int a irq 15 on
pci0.9.0
de0: <Digital 21140A Fast Ethernet> rev 0x22 int a irq 11 on pci0.10.0
de0: 21140A [10-100Mb/s] pass 2.2
de0: address 00:80:c8:58:96:d3
ahc0: <Adaptec aic7895 Ultra SCSI adapter> rev 0x04 int a irq 10 on
pci0.12.0
ahc0: aic7895 Wide Channel A, SCSI Id=7, 16/255 SCBs
ahc1: <Adaptec aic7895 Ultra SCSI adapter> rev 0x04 int b irq 10 on
pci0.12.1
ahc1: Using left over BIOS settings
ahc1: aic7895 Wide Channel B, SCSI Id=7, 16/255 SCBs
Probing for devices on PCI bus 1:
Probing for devices on the ISA bus:
sc0 at 0x60-0x6f irq 1 on motherboard
sc0: VGA color <16 virtual consoles, flags=0x0>
psm0 not found at 0x60
fdc0 at 0x3f0-0x3f7 irq 6 drq 2 on isa
fdc0: FIFO enabled, 8 bytes threshold
fd0: 1.44MB 3.5in
npx0 on motherboard
npx0: INT 16 interface
Waiting 15 seconds for SCSI devices to settle
de0: enabling Full Duplex 100baseTX port
changing root device to da0s1a
da0 at ahc0 bus 0 target 0 lun 0
da0: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da0: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da0: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da7 at ahc1 bus 0 target 8 lun 0
da7: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da7: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da7: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da11 at ahc1 bus 0 target 12 lun 0
da11: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da11: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da11: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da13 at ahc1 bus 0 target 14 lun 0
da13: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da13: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da13: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da12 at ahc1 bus 0 target 13 lun 0
da12: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da12: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da12: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da10 at ahc1 bus 0 target 11 lun 0
da10: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da10: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da10: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da9 at ahc1 bus 0 target 10 lun 0
da9: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da9: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da9: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da8 at ahc1 bus 0 target 9 lun 0
da8: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da8: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da8: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da4 at ahc0 bus 0 target 4 lun 0
da4: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da4: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da4: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da6 at ahc0 bus 0 target 6 lun 0
da6: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da6: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da6: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da5 at ahc0 bus 0 target 5 lun 0
da5: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da5: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da5: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da3 at ahc0 bus 0 target 3 lun 0
da3: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da3: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da3: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da2 at ahc0 bus 0 target 2 lun 0
da2: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da2: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da2: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
da1 at ahc0 bus 0 target 1 lun 0
da1: <SEAGATE ST118273LW 5766> Fixed Direct Access SCSI2 device
da1: 40.0MB/s transfers (20.0MHz, offset 8, 16bit), Tagged Queueing
Enabled
da1: 17366MB (35566480 512 byte sectors: 64H 32S/T 17366C)
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