Re: [Veritas-bu] Poll: Windows Communications Buffer Size?

My understanding from the manual is that you should specify 128 as
Netbackup automatically adds the extra 1 to make it the requested 129,
if you set 129 then it makes it 130 and you are out of sync again.

This could be wrong tho, anyone?

dean

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of Haskins,
Steve
Sent: Thursday, November 29, 2007 1:03 PM
To: RMajor AT vericenter DOT com; jpiszcz AT lucidpixels DOT com;
VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Poll: Windows Communications Buffer Size?

All, in a class the instructor recommended setting it at 129 for
Windows.

Regards

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of
RMajor AT vericenter DOT com
Sent: Thursday, November 29, 2007 1:56 PM
To: jpiszcz AT lucidpixels DOT com; VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] Poll: Windows Communications Buffer Size?

Justin,

I believe the default is 32k. We try to get as many of our clients to
512k
as possible. I don't have any definitive numbers for you other than
"it's
noticeably faster" and also that "switch cpu usage dropped noticeably".
Our network is most certainly different than yours so YMMV.

I would try upping a few of the ones you can test on and see what
happens.

-----Original Message-----
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu] On Behalf Of
jpiszcz AT lucidpixels DOT com
Sent: Thursday, November 29, 2007 8:39 AM
To: VERITAS-BU AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] Poll: Windows Communications Buffer Size?

The default is either 16 KiB or 32 KiB, I was wondering if anyone tested
various sizes such as 64,128,256,512,1024 KiB and how that had an impact
on performnace?  I believe in the tuning doc they recommend you set it
to
128 KiB..

Justin.
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