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.
-M
-----Original Message-----
From: King, Cheryl [mailto:cheryl.king AT intrado DOT com]
Sent: Wednesday, March 17, 2004 12:03 PM
To: Veritas-Bu (E-mail)
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
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