Re: [Veritas-bu] How To Change Default BLOCKSIZE on Windows 2003 SP2 ?

Hi Alex,

I don't have such problem with the block size on the OS after I applied the MS patch on my W2k3 SP1, I have Emulex HBA cards and their drivers that supports 256k block size. All my Windows media servers work perfectly fine with 256k. Per MS 64k buffer size for the tape driver was fixed in SP2. I have one W2k3 SP2 media server and it works with the tuned data buffer size, again no issues. I also have LTO-2 and LTO-3 tape drives.

On Thu, Aug 14, 2008 at 10:35 PM, Wilkinson, Alex <alex.wilkinson AT dsto.defence.gov DOT au> wrote:

0n Fri, Aug 15, 2008 at 09:59:53AM +0800, Wilkinson, Alex wrote:

>
> 0n Thu, Aug 14, 2008 at 10:23:43AM -0400, Boris Kraizman wrote:
>
> >Here is the tech note how to do it
> >http://seer.entsupport.symantec.com/docs/244652.htm
>
>Yes thats how we tweak the 'application' (netbackup), but if you're OS is limited
>to a certain BLOCKSIZE (e.g. windows pre 2003-sp2 (64KB)) it make SFA
>difference. So, what I am saying is that from the Operating System's perspective
>where does one 'tweak' the default IO block size for IO operations ?
>
>I found this in DataProtector Admin Guide:
>
>"Changing Block Size on Windows Media Agent"
>
> [http://h20000.www2.hp.com/bc/docs/support/SupportManual/c00663793/c00663793.pdf]
>
> Page 781

For the purposes of the archives. This is what I am talking about:

[http://mailman.eng.auburn.edu/pipermail/veritas-bu/2005-February/026952.html]

-aW

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