On Sunday 15 September 2002 17:44, Jason Thomas wrote:
>On Sun, Sep 15, 2002 at 10:48:30AM -0400, Gene Heskett wrote:
>> On Sunday 15 September 2002 08:41, Jason Thomas wrote:
>> >00:09.0 SCSI storage controller: Adaptec AHA-2940U2/W
>>
>> Ok, thats a wide (68 pin, not 80 pin, 80's are marked UW on the
>> end I think) controller. Chances are pretty good the tape is a
>> 50 pin scsi-2 interface. Assuming you are using some sort of an
>> adaptor to go from 68 to 50, and that this adaptor properly
>> terminates the upper 18 lines. For the adaptor's terminations
>> to function properly, it must have term power available on pin
>> 26 of the cable. A minumum of 4.7 volts after the steering diode
>> thats supposed to be on the 2940.
>>
>> How close am I with the guessing so far?
>
>Okay here are the details.
>
>
>Controller:
>00:09.0 SCSI storage controller: Adaptec AHA-2940U2/W
>
>The Tape Drive:
>Its a HP dat40x6i Autoloader. C5713A and connects directly to the
> 68 pin cable.
>
>The hard drives are seagate barracuda's and as far as I know have
> no built in termination.
Ahh, but they do. Its an "active" termination when its enabled,
which is via jumper placement on the drive. You'll have to slide
the drives out of the rails to see the jumper tables printed on the
top and the jumper locations are sometimes on the front edge of the
drive, and sometimes on the bottom, very occasionally on the rear
adjacent to the header socket.
Is the tape the last device on the cable, and connected to the last
connector?
>root@bast:~# cat /proc/scsi/scsi
>Attached devices:
>Host: scsi0 Channel: 00 Id: 00 Lun: 00
> Vendor: SEAGATE Model: ST39173LW Rev: 6246
> Type: Direct-Access ANSI SCSI revision: 02
>Host: scsi0 Channel: 00 Id: 01 Lun: 00
> Vendor: SEAGATE Model: ST39175LW Rev: 0001
> Type: Direct-Access ANSI SCSI revision: 02
>Host: scsi0 Channel: 00 Id: 02 Lun: 00
> Vendor: SEAGATE Model: ST39173LW Rev: 6246
> Type: Direct-Access ANSI SCSI revision: 02
>Host: scsi0 Channel: 00 Id: 15 Lun: 00
> Vendor: HP Model: C5713A Rev: H910
> Type: Sequential-Access ANSI SCSI revision: 02
>Host: scsi0 Channel: 00 Id: 15 Lun: 01
> Vendor: HP Model: C5713A Rev: H910
> Type: Medium Changer ANSI SCSI revision: 02
>root@bast:~#
>
>
>root@bast:~# cat /proc/scsi/aic7xxx/0
>Adaptec AIC7xxx driver version: 6.2.8
>aic7890/91: Ultra2 Wide Channel A, SCSI Id=7, 32/253 SCBs
>
>Serial EEPROM:
>0x03bb 0x03bb 0x03bb 0x03bb 0x03bb 0x03bb 0x03bb 0x03bb
>0x03bb 0x03bb 0x03bb 0x03bb 0x03bb 0x03bb 0x03bb 0x03bd
>0x18a6 0x1c5d 0x2807 0x0010 0xffff 0xffff 0xffff 0xffff
>0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0xffff 0x98c1
>
>Channel A Target 0 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
> Goal: 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
> Curr: 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
> Channel A Target 0 Lun 0 Settings
> Commands Queued 5512809
> Commands Active 0
> Command Openings 49
> Max Tagged Openings 49
> Device Queue Frozen Count 0
>Channel A Target 1 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
> Goal: 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
> Curr: 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
> Channel A Target 1 Lun 0 Settings
> Commands Queued 4637962
> Commands Active 0
> Command Openings 49
> Max Tagged Openings 49
> Device Queue Frozen Count 0
>Channel A Target 2 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
> Goal: 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
> Curr: 40.000MB/s transfers (20.000MHz, offset 15, 16bit)
> Channel A Target 2 Lun 0 Settings
> Commands Queued 3600319
> Commands Active 0
> Command Openings 49
> Max Tagged Openings 49
> Device Queue Frozen Count 0
>Channel A Target 3 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 4 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 5 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 6 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 7 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 8 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 9 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 10 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 11 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 12 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 13 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 14 Negotiation Settings
> User: 80.000MB/s transfers (40.000MHz, offset 255, 16bit)
>Channel A Target 15 Negotiation Settings
> User: 40.000MB/s transfers (20.000MHz, offset 255, 16bit)
> Goal: 40.000MB/s transfers (20.000MHz, offset 32, 16bit)
> Curr: 40.000MB/s transfers (20.000MHz, offset 32, 16bit)
> Channel A Target 15 Lun 0 Settings
> Commands Queued 17906092
> Commands Active 0
> Command Openings 1
> Max Tagged Openings 0
> Device Queue Frozen Count 0
> Channel A Target 15 Lun 1 Settings
> Commands Queued 7174
> Commands Active 0
> Command Openings 1
> Max Tagged Openings 0
> Device Queue Frozen Count 0
>root@bast:~#
Nothing in the above list seems to want to grab me by the ankle,
sorry. Other than the tape saying it runs at 40m/s whereas the
rest say 80m/s, nothing else seems to be different, and the
controllers driver *should* be able to negotiate that.
--
Cheers, Gene
AMD K6-III@500mhz 320M
Athlon1600XP@1400mhz 512M
99.15% setiathome rank, not too shabby for a WV hillbilly
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