Veritas-bu

RES: RES: [Veritas-bu] Netbackup clients with gigabit interface

2005-07-08 15:11:52
Subject: RES: RES: [Veritas-bu] Netbackup clients with gigabit interface
From: dlogcher AT MIT DOT EDU (Dan Logcher)
Date: Fri, 08 Jul 2005 15:11:52 -0400
We're running with the following:
::::::::::::::
NET_BUFFER_SZ
::::::::::::::
131072
::::::::::::::
NUMBER_DATA_BUFFERS
::::::::::::::
16
::::::::::::::
SIZE_DATA_BUFFERS
::::::::::::::
262144

--
Dan

Paul Keating wrote:
> Sorry.
> 
> I think I got you mixed up with another poster who said he was running 8 
> streams per client, mpx'ed to 2 drives.
> 
> As for the net buffer size.....512k sounds pretty big to me. We're running 
> 64k.
> 
> bash-2.03# pwd
> /usr/openv/netbackup/db/config
> bash-2.03# more NUMBER_DATA_BUFFERS
> 16
> bash-2.03# more SIZE_DATA_BUFFERS
> 262144
> bash-2.03# cd ../..
> bash-2.03# more NET_BUFFER_SZ
> 65563
> bash-2.03#
> 
> 
>>-----Original Message-----
>>From: Edson Noboru Yamada [mailto:eyamada AT diveo.net DOT br] 
>>Sent: July 8, 2005 2:13 PM
>>To: Paul Keating; Veritas List
>>Subject: RES: RES: RES: [Veritas-bu] Netbackup clients with 
>>gigabit interface
>>
>>
>>
>>
>>I´m using only one stream, actually.
>>
>>I would be glad if I could got 30 MB/s or a little less...
>>but 12 MB/s is not acceptable.
>>
>>thx
>>
>>
>>-----Mensagem original-----
>>De: Paul Keating [mailto:pkeating AT bank-banque-canada DOT ca]
>>Enviada em: sexta-feira, 8 de julho de 2005 14:38
>>Para: Veritas List
>>Assunto: RE: RES: RES: [Veritas-bu] Netbackup clients with gigabit
>>interface
>>
>>
>>How fast does a single (one stream) backup jobs run?
>>
>>I'm wondering if you're thrashing the disks to hard with 8 streams.
>>
>>BTW, 70MB/s is a stretch for LTO2.
>>IIRC, I thought the spec was 30MB/s native / 60 MB/s compressed.
>>
>>I don't think I've seen over 40MB/s per drive.
>>
>>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 
>>>Edson Noboru Yamada
>>>Sent: July 8, 2005 12:49 PM
>>>To: K Chapman; veritas-bu AT mailman.eng.auburn DOT edu
>>>Subject: RES: RES: RES: [Veritas-bu] Netbackup clients with 
>>>gigabit interface
>>>
>>>
>>>
>>>
>>>Actually, I don't think this is a network or disk issue,
>>>because I can FTP a file from the server to the client at
>>>40 MB/s. My drives are HP LTO2, and they reach 70 MB/s.
>>>So, it seems to be a netbackup problem really.
>>>
>>>Thank you
>>>
>>>
>>>-----Mensagem original-----
>>>De: K Chapman [mailto:tech2187 AT yahoo DOT com]
>>>Enviada em: sexta-feira, 8 de julho de 2005 11:43
>>>Para: veritas-bu AT mailman.eng.auburn DOT edu
>>>Assunto: Re: RES: RES: [Veritas-bu] Netbackup clients with gigabit
>>>interface
>>>this is "out of the box" speeds for the most part.  we
>>>have changed some settings on unix hosts and a few
>>>windows server (tcp window sizes).  we are looking at
>>>doing a vlan with jumbo frames turned on to see if
>>>this may improve on things.  are you sure the speed
>>>you are seeing is due to network and not disk/tape/other?
>>>
>>>
>>>             
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>>
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>>
> 
> 
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