If I remember correctly, that windows limitation was on network buffer
size, not the tape buffer

??

I could be wrong.

Paul

> -----Original Message-----
> From: veritas-bu-admin AT mailman.eng.auburn DOT edu 
> [mailto:veritas-bu-admin AT mailman.eng.auburn DOT edu] On Behalf Of 
> Bob Stump
> Sent: November 16, 2005 10:56 AM
> To: veritas-bu AT mailman.eng.auburn DOT edu
> Subject: [Veritas-bu] limitations on SIZE_DATA_BUFFERS
> 
> 
> Thank ypu to all who answered my earlier post.
> The correct answer given to me was  256K (262144)
> 
> Here is a followup question.
> Can this value also be used in W2K and W2K3 servers?
> I seem to remember limitations in earlier versions of 
> Windows/NetBackup.
> 
> 
> >>> Bob Stump 11/15/2005 4:47 PM >>>
> Because the data buffer size equals the tape I/O size, the 
> value specified in SIZE_DATA_BUFFERS must not exceed the 
> maximum tape I/O size supported by the tape drive or 
> operating system. This is usually 256 KB or 128 KB.
> 
> For Digital Linear Tape (DLT) drives, the number that seems 
> to give the best performance for SIZE_DATA_BUFFERS is 65536. 
> Further performance improvements can be achieved by 
> increasing the value in the NUMBER_DATA_BUFFERS file.
> 
> What is the optimum for STK 9940B?
> 
> 
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