iscsi initiator problem

NTDEV
1

Hi,
I have run into a problem with the iscsi initiator on windows
(version 2.0). The target is running on a linux box and is an emulated
tape. Below is a portion from the output of a session list related to
which i have a few queries

Devices:
Device Type : Unknown
Device Number : -1
Storage Device Type : 34
Partition Number : -1
Device Description : SNM Tech TEST TDRIVE SCSI
Sequential Device
Reported Mappings : Port 4, Bus 0, Target Id 0, LUN 0
Location : Bus Number 0, Target Id 0, LUN 0
Initiator Name : Root\SCSIADAPTER\0000_0
Target Name : iqn.2005-06.com.test:storage.tape.aa.vtl
Device Interface Name :
Legacy Device Name :
Device Instance : 0x830

The problem im facing is that the Device Type is unknown and when this
is communicated to the pnp layer above, the new device is added in the
“Other Device” category in the device manager where as this should be
added in the “Tape Devices” portion. But the inquiry returned is
proper, as is seen in the device description where the initiatior
lists it as a SCSI Sequential Device.
I hope this is the correct list for such issues. Please point me to
the correct list if not so.

Thanks,
Shivram

2

Perhaps the device description is just a string? I would examine the inquiry
data and compare it carefully against the scsi spec.

=====================
Mark Roddy DDK MVP
Windows 2003/XP/2000 Consulting
Hollis Technology Solutions 603-321-1032
www.hollistech.com

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Shivaram U
Sent: Saturday, December 17, 2005 1:46 PM
To: Windows System Software Devs Interest List
Subject: [ntdev] iscsi initiator problem

Hi,
I have run into a problem with the iscsi initiator on
windows (version 2.0). The target is running on a linux box
and is an emulated tape. Below is a portion from the output
of a session list related to which i have a few queries

Devices:
Device Type : Unknown
Device Number : -1
Storage Device Type : 34
Partition Number : -1
Device Description : SNM Tech TEST TDRIVE SCSI
Sequential Device
Reported Mappings : Port 4, Bus 0, Target Id 0, LUN 0
Location : Bus Number 0, Target Id 0, LUN 0
Initiator Name : Root\SCSIADAPTER\0000_0
Target Name :
iqn.2005-06.com.test:storage.tape.aa.vtl
Device Interface Name :
Legacy Device Name :
Device Instance : 0x830

The problem im facing is that the Device Type is unknown and
when this is communicated to the pnp layer above, the new
device is added in the “Other Device” category in the device
manager where as this should be added in the “Tape Devices”
portion. But the inquiry returned is proper, as is seen in
the device description where the initiatior lists it as a
SCSI Sequential Device.
I hope this is the correct list for such issues. Please
point me to the correct list if not so.

Thanks,
Shivram

Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

You are currently subscribed to ntdev as: unknown lmsubst tag
argument: ‘’
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3

Since you are not emulating a model of tape that has a device driver in
the box (we don’t have an “SNM Tech TEST TDRIVE” driver), it won’t get
claimed. The point behind virtual tape is that they do emulate well know
models, allowing standard drivers to load.

If you trace the SCSI commands going to the device, I suspect the last
one will be the INQUIRY.

-----Original Message-----
From: Mark Roddy [mailto:xxxxx@hollistech.com]
Sent: Saturday, December 17, 2005 1:27 PM
Subject: RE: iscsi initiator problem

Perhaps the device description is just a string? I would examine the
inquiry data and compare it carefully against the scsi spec.

=====================
Mark Roddy DDK MVP
Windows 2003/XP/2000 Consulting
Hollis Technology Solutions 603-321-1032 www.hollistech.com

-----Original Message-----
From: xxxxx@lists.osr.com
[mailto:xxxxx@lists.osr.com] On Behalf Of Shivaram U
Sent: Saturday, December 17, 2005 1:46 PM
To: Windows System Software Devs Interest List
Subject: [ntdev] iscsi initiator problem

Hi,
I have run into a problem with the iscsi initiator on windows
(version 2.0). The target is running on a linux box and is an emulated

tape. Below is a portion from the output of a session list related to

which i have a few queries

Devices:
Device Type : Unknown
Device Number : -1
Storage Device Type : 34
Partition Number : -1
Device Description : SNM Tech TEST TDRIVE SCSI
Sequential Device
Reported Mappings : Port 4, Bus 0, Target Id 0, LUN 0
Location : Bus Number 0, Target Id 0, LUN 0
Initiator Name : Root\SCSIADAPTER\0000_0
Target Name :
iqn.2005-06.com.test:storage.tape.aa.vtl
Device Interface Name :
Legacy Device Name :
Device Instance : 0x830

The problem im facing is that the Device Type is unknown and when this

is communicated to the pnp layer above, the new device is added in the

“Other Device” category in the device manager where as this should be
added in the “Tape Devices”
portion. But the inquiry returned is proper, as is seen in the device
description where the initiatior lists it as a SCSI Sequential Device.
I hope this is the correct list for such issues. Please point me to
the correct list if not so.

Thanks,
Shivram

Questions? First check the Kernel Driver FAQ at
http://www.osronline.com/article.cfm?id=256

You are currently subscribed to ntdev as: unknown lmsubst tag
argument: ‘’
To unsubscribe send a blank email to xxxxx@lists.osr.com

4

Hi,
That appears to be the problem. Emulating a standard model seems to
work fine. Thanks a lot.

Best Regards,
Shivram U

On 12/18/05, Jeff Goldner wrote:
> Since you are not emulating a model of tape that has a device driver in
> the box (we don’t have an “SNM Tech TEST TDRIVE” driver), it won’t get
> claimed. The point behind virtual tape is that they do emulate well know
> models, allowing standard drivers to load.
>
> If you trace the SCSI commands going to the device, I suspect the last
> one will be the INQUIRY.
>