Re: More than 5 SCSI disks? (/dev/sdf: ENXIO)
Jameson Burt wrote:
>
> > Hello.
> >
> > There are 5 SCSI disks happily running at sda - sde. The 6th
> > disk is accepted as /dev/sdf, as the kernel output after lilo
> > says. But fdisk /dev/sdf fails with "Unable to open /dev/sdf".
...
> You've probably already checked it, but I have often exceeded
> acceptable scsi cable lengths with unusual results (eg, my tape drive
> would mistakenly think it had reached an end of tape).
> These acceptable lengths can be seen at
> http://www.scsita.org/terms.html
Thank you for the reply. I'quadruple let check it again (the
machine in question is running at another location 450km away from
my office and I'm doing remote support).
I know there are only these 3 ultra wide SCSI disks on the
Advansys controller in an external HP-SCSI-box with external bus
termination. With the internal drives on the first SCSI bus on
Adaptec 2940UW we have no problems at all, after we had put one of
the ultra disks at the end for termination the wide bus. This bus
is 1.6m long.
I really don't know where to search further, HW? driver?
SCSI-kernel?
Below is the output from dmesg. Thanks.
Andreas Wehler
======================================================================
# dmesg
2077
(scsi0) <Adaptec AHA-294X Ultra SCSI host adapter> found at PCI 9/0
(scsi0) Wide Channel, SCSI ID=7, 16/255 SCBs
(scsi0) BIOS enabled, IO Port 0xd000, IRQ 15
(scsi0) IO Memory at 0xe3000000, MMAP Memory at 0x8805000
(scsi0) Resetting channel
(scsi0) Downloading sequencer code... 413 instructions downloaded
scsi0 : Adaptec AHA274x/284x/294x (EISA/VLB/PCI-Fast SCSI) 5.0.14/3.2.4
<Adaptec AHA-294X Ultra SCSI host adapter>
scsi : 1 host.
(scsi0:0:-1:-1) Scanning channel for devices.
(scsi0:0:0:0) Using wide (16 bit) transfers.
(scsi0:0:0:0) Synchronous at 20.0MHz, offset 8.
Vendor: IBM Model: DDRS-39130W Rev: S92A
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sda at scsi0, channel 0, id 0, lun 0
(scsi0:0:1:0) Using wide (16 bit) transfers.
(scsi0:0:1:0) Synchronous at 20.0MHz, offset 8.
Vendor: IBM Model: DDRS-39130W Rev: S92A
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdb at scsi0, channel 0, id 1, lun 0
(scsi0:0:2:0) Using wide (16 bit) transfers.
(scsi0:0:2:0) Synchronous at 20.0MHz, offset 8.
Vendor: IBM Model: DDRS-39130W Rev: S92A
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdc at scsi0, channel 0, id 2, lun 0
(scsi0:0:4:0) Synchronous at 10.0MHz, offset 8.
Vendor: HP Model: C1533A Rev: A708
Type: Sequential-Access ANSI SCSI revision: 02
Detected scsi tape st0 at scsi0, channel 0, id 4, lun 0
Vendor: TEAC Model: CD-ROM CD-532S Rev: 1.0A
Type: CD-ROM ANSI SCSI revision: 02
Detected scsi CD-ROM sr0 at scsi0, channel 0, id 5, lun 0
(scsi0:0:6:0) Refusing synchronous negotiation; using asynchronous transfers.
Vendor: YAMAHA Model: CRW4260 Rev: 1.0j
Type: CD-ROM ANSI SCSI revision: 02
Detected scsi CD-ROM sr1 at scsi0, channel 0, id 6, lun 0
scsi : detected 1 SCSI tape 2 SCSI cdroms 3 SCSI disks total.
SCSI device sda: hdwr sector= 512 bytes. Sectors= 17850000 [8715 MB] [8.7 GB]
SCSI device sdb: hdwr sector= 512 bytes. Sectors= 17850000 [8715 MB] [8.7 GB]
SCSI device sdc: hdwr sector= 512 bytes. Sectors= 17850000 [8715 MB] [8.7 GB]
Partition check:
sda: sda1 sda2 sda3 sda4 < sda5 sda6 sda7 sda8 >
sdb: sdb1
sdc: sdc1 sdc2
VFS: Mounted root (ext2 filesystem) readonly.
PS/2 auxiliary pointing device detected -- driver installed.
3c59x.c:v0.99E 5/12/98 Donald Becker http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
loading device 'eth0'...
eth0: 3Com 3c905B Cyclone 100baseTx at 0xb400, 00:10:4b:b7:bd:7e, IRQ 10
8K byte-wide RAM 5:3 Rx:Tx split, autoselect/NWay Autonegotiation interface.
Enabling bus-master transmits and whole-frame receives.
scsi1 : AdvanSys SCSI 3.1D: PCI Ultra 16 CDB: IO B000/F, IRQ 11
scsi : 2 hosts.
Vendor: SEAGATE Model: ST19171N Rev: 0024
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdd at scsi1, channel 0, id 0, lun 0
Vendor: SEAGATE Model: ST19171N Rev: 0024
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sde at scsi1, channel 0, id 1, lun 0
Vendor: SEAGATE Model: ST39140N Rev: 1281
Type: Direct-Access ANSI SCSI revision: 02
Detected scsi disk sdf at scsi1, channel 0, id 2, lun 0
SCSI device sdd: hdwr sector= 512 bytes. Sectors= 17783112 [8683 MB] [8.7 GB]
sdd: sdd1 sdd2 sdd3 < sdd5 sdd6 sdd7 sdd8 >
SCSI device sde: hdwr sector= 512 bytes. Sectors= 17783112 [8683 MB] [8.7 GB]
sde: sde1 sde2 < sde5 sde6 sde7 sde8 >
Adding Swap: 119996k swap-space (priority -1)
Adding Swap: 114996k swap-space (priority -2)
Disc change detected.
VFS: Disk change detected on device 0b:00
Disc change detected.
VFS: Disk change detected on device 0b:00
--
CAD/CAM straessle GmbH Tel.: (+49) 211 - 52740 - 228
Dr.-Ing. Andreas Wehler Fax.: (+49) 211 - 52740 - 280
http://www.cc-straessle.com
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