Thanks Barry,
The question I asked because:
I have Mass storage device with 2 LUNs, It works fine most times, but when i try to do large copy from one LUN to other LUN on my device, at the same time try to read some files on on of the LUNs, my program is failing, when it fails, the data structures show that the last data sent by the host was a CBW, and the previous transaction was not complete. I never receive a reset recovery command though.
Regards,
Nitin