Request Sense and Ignore Wide Residue

Eric Swartz eric at verisys.com
Mon Aug 14 11:44:33 PDT 1995


>
>I have noticed different behavior on two different wide drives I have and 
>from the spec can't tell which one is correct, or if both are correct. It 
occurs when the initiator sends a REQUEST SENSE command with an Allocation 
Length of 0x0D (13 decimal) to a wide target.  16-bit wide has been 
previously negotiated with an exchange of WDTR messages.
>

Guy,

In our experience, the device should respond with 14 bytes and the IGNORE 
WIDE RESIDUE message. This is also clearly stated in section 6.6.8 of the 
SCSI II standard.

Eric Swartz

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