Veritas-bu

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

2005-07-08 15:02:51
Subject: RES: RES: [Veritas-bu] Netbackup clients with gigabit interface
From: pkeating AT bank-banque-canada DOT ca (Paul Keating)
Date: Fri, 8 Jul 2005 15:02:51 -0400
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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