scsi parity error in windows 2008 with Quantum px500 library

I have connected a Quantum px500 library to my windows 2008 IA64 client. When I am taking a backup of less then 1 gb data everything is fine. When I am taking backup of 8 gb data the backup fails. I am using HP Data Protector backup software. When I am seeing the logs for it, the acs and acsq values are 40h and 00h which means scsi parity error. If I install Linux on the same machine and take backup of bigger files everything is fine.

Can you please tell what could be the error?
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The one thing that comes to mind is the 64k buffer size limitation with Windows for controller drivers.

Still a parity error is kind of unique. Unlike the common NT SCSI Port Errors that come up and can be caused by just about anything, parity errors are specific.

Are you sure the Linux install is doing parity checking? If not the error could still be happening and just going unreported. Was the backup done with a compare tape to disk to verify the integrity of the data?

In spite of the fact that the backups work under Linux I still recommend doing the standard checking.
verify the bus is properly terminated
replace the terminator
replace the cable

sukantapaloAuthor Commented:
Thanks for the answer. The windows driver and the hardware combination may be not working. I changed the system it works fine. So it seems to me as an hardware error only.

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