scsi port driver Resetting bus due to timeout

NTDEV
1

Hi,

The scsiport driver send a bus reset once only during the boot time. I see
the follwoing message on the debugger

“SpTimeoutSynchronized: Next request timed out. Resetting bus”.

Is there a way to increase this timeout period?

Thanks,
Shakeel.

2

Answer is: it depends. On Win2K, if this is a scsiport generated command
(INQUIRY, REPORT LUNS, REQUEST SENSE) - no, these are hardcoded (as low
as 2 seconds). Other commands should obey the TimeoutValue set for the
particular class. Default is 4 seconds.

On Server 2003, all commands will obey that TimeoutValue (specifically,
the port driver will default to the Disk setting). The default is now 10
seconds for all commands.

-----Original Message-----
From: shakeel [mailto:xxxxx@yahoo.com]
Sent: Thursday, June 24, 2004 3:54 PM
Subject: scsi port driver Resetting bus due to timeout

Hi,

The scsiport driver send a bus reset once only during the boot time. I
see
the follwoing message on the debugger

“SpTimeoutSynchronized: Next request timed out. Resetting bus”.

Is there a way to increase this timeout period?

Thanks,
Shakeel.

3

Jeffrey,

This is for W2K and WXP. What I have seen is that the reset occurs after the
scsiport driver issues command sometiems READ_CAPACITY (25) or sometimes
READ BLOCK (28) and this happens only during the boot time OR when we
create/delete an array from the management software and do scan for hardware
changes from the device manager. So if I increase the Disk class driver
TimeoutValue to a greater value, will that resolve this issue.

Thanks,

“Jeffrey Goldner” wrote in message
news:xxxxx@ntdev…
Answer is: it depends. On Win2K, if this is a scsiport generated command
(INQUIRY, REPORT LUNS, REQUEST SENSE) - no, these are hardcoded (as low
as 2 seconds). Other commands should obey the TimeoutValue set for the
particular class. Default is 4 seconds.

On Server 2003, all commands will obey that TimeoutValue (specifically,
the port driver will default to the Disk setting). The default is now 10
seconds for all commands.

-----Original Message-----
From: shakeel [mailto:xxxxx@yahoo.com]
Sent: Thursday, June 24, 2004 3:54 PM
Subject: scsi port driver Resetting bus due to timeout

Hi,

The scsiport driver send a bus reset once only during the boot time. I
see
the follwoing message on the debugger

“SpTimeoutSynchronized: Next request timed out. Resetting bus”.

Is there a way to increase this timeout period?

Thanks,
Shakeel.

4

Hi All,

I also noticed that the SCSIPORT driver sends INQUIRY for LUN 0 --7 once the
LUN 0 responds with valid inquiry data. eventhough in the miniport driver
the maximum LUN is set to 1.
PORT_CONFIGURATION_INFORMATION->MaximumNumberOfLogicalUnits = 1;

It seems like the scsiport driver is not paying attension to it.

Thanks,
Shakeel.

“shakeel” wrote in message news:xxxxx@ntdev…
> Jeffrey,
>
> This is for W2K and WXP. What I have seen is that the reset occurs after
the
> scsiport driver issues command sometiems READ_CAPACITY (25) or sometimes
> READ BLOCK (28) and this happens only during the boot time OR when we
> create/delete an array from the management software and do scan for
hardware
> changes from the device manager. So if I increase the Disk class driver
> TimeoutValue to a greater value, will that resolve this issue.
>
> Thanks,
>
> “Jeffrey Goldner” wrote in message
> news:xxxxx@ntdev…
> Answer is: it depends. On Win2K, if this is a scsiport generated command
> (INQUIRY, REPORT LUNS, REQUEST SENSE) - no, these are hardcoded (as low
> as 2 seconds). Other commands should obey the TimeoutValue set for the
> particular class. Default is 4 seconds.
>
> On Server 2003, all commands will obey that TimeoutValue (specifically,
> the port driver will default to the Disk setting). The default is now 10
> seconds for all commands.
>
> -----Original Message-----
> From: shakeel [mailto:xxxxx@yahoo.com]
> Sent: Thursday, June 24, 2004 3:54 PM
> Subject: scsi port driver Resetting bus due to timeout
>
> Hi,
>
> The scsiport driver send a bus reset once only during the boot time. I
> see
> the follwoing message on the debugger
>
> “SpTimeoutSynchronized: Next request timed out. Resetting bus”.
>
> Is there a way to increase this timeout period?
>
> Thanks,
> Shakeel.
>
>
>
>