Does anyone have any info on this with Gig cards - they only have Auto,
there are no other options. Veritas does not recommend Auto but in this
case there is no choice. This is a windows environment and I am seeing the
same thing - but interesting that this started happening when upgrading from
3.4.1 to 4.5 - has anyone seen this?
I am at my wits end and dont know how to solve. Veritas does have some ways
of testing network without NBU involved to show that it is not NBU but then
what do I tell the network guys?
Thanks for the dialougue, this is mostly helpful.
Jennifer
----- Original Message -----
From: "Coco, Samuel (Cont, ARL/CISD)" <scoco AT arl.army DOT mil>
To: "Paul Boatman" <boatm005 AT groupwise.umn DOT edu>;
<Dwayne.Brzozowski AT mail.va DOT gov>; <veritas-bu AT mailman.eng.auburn DOT
edu>
Sent: Thursday, March 18, 2004 7:40 AM
Subject: RE: [Veritas-bu] Is there an official document of client and server
N ICand switch settings
> YES !!! - - - >
>
> Here at ARL (Army Research Lab), we had the same issues. Once we
> demonstrated the variances and the networking team verified our claims
> using checkpoint and other tools - the entire organization now 'hard
> sets' the majority of our connections.
>
> 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 Paul
> Boatman
> Sent: Thursday, March 18, 2004 8:33 AM
> To: Dwayne.Brzozowski AT mail.va DOT gov; veritas-bu AT mailman.eng.auburn
> DOT edu
> Subject: Re: [Veritas-bu] Is there an official document of client and
> server N ICand switch settings
>
>
> I work at the 6th largest university in the country. About 1 year ago,
> the entire university was required to switch to AUTO-AUTO across ALL
> platforms because of network infrastructure changes ("eek !"). The
> impact on Veritas Netbackup has been ridiculous. Our drives are sitting
> here getting 10%-20% thruput, and our capacity is maxed out when it
> shouldn't be. Tape management and load balancing between 2 robots (1 of
> which is maxed out tape-wise, the other is maxed out drive-wise) is a
> nightmare. Upper management is blaming the software, scheduler, and
> drive technology claiming that they are not sufficient.
>
> Is anyone else in a similar situation ?
>
> What are the "settings that work" Dwayne ? I am very interested.
> Maybe we could present this info to our Network / Telecom guys. By the
> way Dwayne, I am a veteran so I sure do appreciate you guys in the VA.
>
> Thanks,
>
> Paul
>
> >>> "Biller, Tim" <Tim.Biller AT uk.experian DOT com> 3/18/2004 02:55:30 >>>
> Hi Cheryl,
>
> Have the Network Admins lock the switch port speed to 100Mbit and Full
> Duplex and make sure the client NIC is set exactly the same on ALL the
> servers. The Unix boxes will need setting explicitly as Mark says, and
> a file added to ensure they stay that way after a reboot. (Your
> sysadmins should know this....)
>
> Most network switches always auto-negotiate to the lowest possible speed
> so it's essential to lock this down. Any decent network admin should
> know this....
>
> Are you running on a dedicated backup LAN? If there's no impact on other
> systems there's absolutely no reason not to max out the ports and NICs.
>
>
> I'm not aware of any specific documentation that states that 100/Full
> should be used but if performance sucks under autoneg and it flies under
> 100/Full then there's your argument. What tape drives are you using?
> Are you using SSO?
>
> Cheers - Tim
>
>
> Date: Wed, 17 Mar 2004 12:03:10 -0700
> From: "King, Cheryl" <cheryl.king AT intrado DOT com>
> To: "Veritas-Bu \(E-mail\)" <veritas-bu AT mailman.eng.auburn DOT edu>
> Subject: [Veritas-bu] Is there an official document of client and server
> NIC and switch settings
>
> Over and over again we have problems with poor performance with new
> client backups and restores. Is there a document that says what the NIC
> settings should be for each client type? For example we have highest
> speed possible for all of them, half duplex for HP, and full duplex for
> everything else, I think (I haven't checked every system and wasn't here
> when some were implemented). Setting Auto detect on the switch seems to
> not work correctly
> (causes slow performance). I think the switches are set to match the
> server, but have no way to verify that. I'd like to be able to present
> an official document to the System Administrators and the Network
> Engineers that states the correct configuration requirements. Does
> Veritas have such a document or statement?
>
> Is this a problem in other environments? Is this just an issue in
> Veritas Backup environments? Are my SAs and Network Engineers not
> following some
> industry, standard, best-practices? I've been in IT for many years
> but
> working with Veritas NBU for 1 year. I don't recall ever having network
> issues like this before.
>
> NBU 4.5 FP5 Solaris 8 Master/Media
> Clients OSF1_V5, HP-UX 11.00, HP-UX10.20, Windows2000, WindowsNT,
> RedHat2.4, RedHat 2.2, Solaris8, Solaris7.
>
> Thanks in advance.
>
> Cheryl King
>
>
> From: "Donaldson, Mark" <Mark.Donaldson AT experianems DOT com>
> To: "'King, Cheryl'" <cheryl.king AT intrado DOT com>,
> "Veritas-Bu (E-mail)"
> <veritas-bu AT mailman.eng.auburn DOT edu>
> Subject: RE: [Veritas-bu] Is there an official document of client and
> serv
> er NIC and switch settings
> Date: Wed, 17 Mar 2004 12:31:48 -0700
>
> The network settings are outside Netbackup control.
>
> You should always set to your highest possible speeds. For many
> server/switch combinations, auto-negotiation fails to negotiate the
> highest settings and they must often be forced to the best setting using
> ndd or similar utilities.
>
> Half-duplex performance stinks - are you sure that's what only what HP
> can do?
>
> Your network person should be able to query a smart-enough switch for
> the switch port settings, the SA should be able to query the ethernet
> port for the same settings.
>
>
> This e-mail has come from Experian International: winner of the UK's
> National Business of the Year Award 2003.
>
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