That's exactly it. The device is appearing to dmesg upon boot or modprobe for aic7xxx yet I can't access the device:
PCI: Enabling device 0000:00:0a.0 (0006 -> 0007)
ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 11 (level, low) -> IRQ 11
scsi6 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
<Adaptec 2940 SCSI adapter>
aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs(scsi6:A:4): 5.000MB/s transfers (5.000MHz, offset 15)
Vendor: CONNER Model: CTT8000-S Rev: 1.17
Type: Sequential-Access ANSI SCSI revision: 02
Attached scsi tape st0 at scsi6, channel 0, id 4, lun 0
st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA 1048575
Attached scsi generic sg5 at scsi6, channel 0, id 4, lun 0, type 1
[root@penguin root]# mt -f /dev/st0 status
/dev/st0: Input/output error
[root@penguin root]#
Charles Curley wrote:
What do you mean, you can't get to the tape drive? What have you tried that lead you to this conclusion? The log excerpts below indicate the driver is finding it and attaching it to /dev/st0.
You should see it with something like this:
[root@charlesc root]# mt -f /dev/st0 status SCSI 2 tape drive: File number=-1, block number=-1, partition=0. Tape block size 0 bytes. Density code 0x0 (default). Soft error count since last status=0 General status bits on (50000): DR_OPEN IM_REP_EN
Rather than something like this:
[root@charlesc root]# mt -f /dev/st3 status /dev/st3: No such device or address
Your drive should be at st0 if it's the first or only SCSI tape drive.
Aug 27 12:57:31 penguin kernel: ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 11 (level, low) -> IRQ 11
Aug 27 12:57:31 penguin kernel: scsi5 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
Aug 27 12:57:31 penguin kernel: <Adaptec 2940 SCSI adapter>
Aug 27 12:57:31 penguin kernel: aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs
Aug 27 12:57:31 penguin kernel:
Aug 27 12:57:49 penguin kernel: (scsi5:A:4): 5.000MB/s transfers (5.000MHz, offset 15)
Aug 27 12:57:49 penguin kernel: Vendor: CONNER Model: CTT8000-S Rev: 1.17
Aug 27 12:57:49 penguin kernel: Type: Sequential-Access ANSI SCSI revision: 02
Aug 27 12:57:49 penguin kernel: Attached scsi tape st0 at scsi5, channel 0, id 4, lun 0
Aug 27 12:57:49 penguin kernel: st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA 1048575
Aug 27 12:57:49 penguin kernel: Attached scsi generic sg5 at scsi5, channel 0, id 4, lun 0, type 1
This looks like FC2 (2.6 kernel). Here's what my log looks like on FC1:
Aug 22 09:49:19 charlesc kernel: blk: queue dfeb5814, I/O limit 4095Mb (mask 0xffffffff) Aug 22 09:49:19 charlesc kernel: (scsi0:A:6): 6.944MB/s transfers (6.944MHz, offset 15) Aug 22 09:49:19 charlesc kernel: Vendor: CONNER Model: CTT8000-S Rev: 1.22 Aug 22 09:49:19 charlesc kernel: Type: Sequential-Access ANSI SCSI revision: 02 Aug 22 09:49:19 charlesc kernel: blk: queue df5f0614, I/O limit 4095Mb (mask 0xffffffff)
ACPI: PCI interrupt 0000:00:0a.0[A] -> GSI 11 (level, low) -> IRQ 11 scsi5 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36 <Adaptec 2940 SCSI adapter> aic7870: Single Channel A, SCSI Id=7, 16/253 SCBs
(scsi5:A:4): 5.000MB/s transfers (5.000MHz, offset 15)
Vendor: CONNER Model: CTT8000-S Rev: 1.17
Type: Sequential-Access ANSI SCSI revision: 02
Attached scsi tape st0 at scsi5, channel 0, id 4, lun 0
st0: try direct i/o: yes (alignment 512 B), max page reachable by HBA 1048575
Attached scsi generic sg5 at scsi5, channel 0, id 4, lun 0, type 1
Aug 22 09:49:19 charlesc kernel: scsi0 : Adaptec AIC7XXX EISA/VLB/PCI SCSI HBA DRIVER, Rev 6.2.36
Aug 22 09:49:19 charlesc kernel: <Adaptec 2940A Ultra SCSI adapter>
Aug 22 09:49:19 charlesc kernel: aic7860: Ultra Single Channel A, SCSI Id=7, 3/253 SCBs
Aug 22 09:49:19 charlesc kernel: Aug 22 09:49:19 charlesc kernel: blk: queue df5f0414, I/O limit 4095Mb (mask 0xffffffff)
Also, you have firmware rev 1.17. You might want to upgrade it. I seem to recall problems with 1.17. I have 1.22, and there may be even more recent firmware.
I'll try that next.
Now I remember why I avoid SCSI...
-- Greg Gulik http://www.gulik.org/greg/ greg @ gulik.org
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-- Greg Gulik http://www.gulik.org/greg/ greg @ gulik.org
