Please review the attached:

The known fix is to set the network buffer size file on the UNIX
master/Media server and all clients, especially the WIN/NT clients.

 

UNIX:

= = = 

echo "65536" > /usr/openv/netbackup/NET_BUFFER_SZ

 

 

WIN/NT:

= = = = =

On the client (Windows box) create the file <install
location>\VERITAS\NetBackup\NET_BUFFER_SZ with the contents 65536

 

 

Related technote is below:

= = = = = = = = = = = = = =

Public Link: http://support.veritas.com/docs/183702

 


Thank you,
 
 
Samuel J. Coco, STG
Functional Area Manager, ARL
Sr UNIX Administrator
BELL      301 394-1151 DSN 290
CELL (B) 240 398-7121 / (H)443 496-1623
HOME     410 604-2415
Email  scoco AT arl.army DOT mil


-----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 Peter
DrakeUnderkoffler
Sent: Tuesday, June 15, 2004 9:54 AM
To: Mark Steel
Cc: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] SIZE_DATA_BUFFERS_DISK


Mark Steel wrote:

>All
>
>I am having a lot of performance issues duplicating images from disk to

>tape. the bpdm process is reading at 64k from  disk, and the manual 
>does not have any tuneables.
>
>Looking at the binary, there are several useful looking parameters - 
>the
>SIZE_DATA_BUFFERS_DISK looks particularly useful
>
>I've tried putting the file of same name in db/config, but debug still 
>indicates the 64k read. I've tred a registry key ( its a windows master

>), no effect.
>
>Anyone use this or have seen it ?
>
>Regards
>Mark
>
>
>
>_______________________________________________
>Veritas-bu maillist  -  Veritas-bu AT mailman.eng.auburn DOT edu 
>http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
>
>  
>
Probably need more info like versions, filesystems, O/S favor etc...
What kind of performance do you get on the filesystem outside of
NetBackup?  What kinid of tape performance to you get outside of
NetBackup?


Thanks
Peter


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