Re: [Veritas-bu] HELP!!!!
2011-09-27 15:48:30
Only on the older 10/100 NIC cards. They
tightened up the RFC when gigabit came around. If it don't autoneg,
something is wrong.
From:
| "WEAVER, Simon \(external\)"
<simon.weaver AT astrium.eads DOT net>
|
To:
| "Patrick" <netbackup AT whelan-consulting.co DOT uk>,
<veritas-bu AT mailman.eng.auburn DOT edu>
|
Date:
| 09/27/2011 03:12 PM
|
Subject:
| Re: [Veritas-bu] HELP!!!!
|
Sent by:
| veritas-bu-bounces AT mailman.eng.auburn DOT edu |
Would it not be better to
hard code the nic speed than auto/auto ?
Simon
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu]
On Behalf Of Patrick
Sent: 27 September 2011 15:17
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: Re: [Veritas-bu] HELP!!!!
I have cleaned up some of
our “DNS” problems, although they were not the clients in question, and
will see how it goes tonight. It also turns out that the medias servers
had “files dns” in /etc/nsswitch.conf whereas the master had “dns host”.
I’ve changed the master to match. They also changed the NIC cards on the
master to 1GB instead of auto negotiate. So we will see what happens tonight.
If it is a problem with hitting the DNS servers too hard it should get
worse tonight. J
Thank all of you for your
suggestions.
Regards,
Patrick Whelan
VERITAS Certified NetBackup
Support Engineer for UNIX.
VERITAS Certified NetBackup
Support Engineer for Windows.
netbackup AT whelan-consulting.co DOT uk
From: Bahnmiller, Bryan E. [mailto:bbahnmiller AT dtcc DOT com]
Sent: 27 September 2011 15:44
To: Patrick
Subject: RE: [Veritas-bu] HELP!!!!
Patrick,
That is strange. I’m wondering if something
else is going on. I have seen situations where you beef up your environment
and it introduces you to other problems that used to be masked by a limited
environment. With that many drives and that much memory, you are going
to be able to queue up and run more jobs. If you are creating jobs faster,
I wonder if you are running into name resolution problems now. Can you
find out how loaded your DNS server is during the same time frame? I have
seen where one of the older NBU environments I had was pounding the DNS
servers to the point that they were running 100% cpu. I thought 6.x was
much better at this, but it could possibly be related to the way your Linux
servers are doing name caching and how hard they hit the DNS servers.
One other possibility would be the VTL. I’ve
had better luck with the newer DataDomain’s from EMC than their older
“DL’s”. It may be possible that they are slow in responding to requests
when they get busy, but I wouldn’t think those would show up as error
47’s.
Does /var/log/messages show anything around
the same time frame?
Bryan
From: veritas-bu-bounces AT mailman.eng.auburn DOT edu
[mailto:veritas-bu-bounces AT mailman.eng.auburn DOT edu]
On Behalf Of Patrick
Sent: Tuesday, September 27, 2011 4:17 AM
To: veritas-bu AT mailman.eng.auburn DOT edu
Subject: [Veritas-bu] HELP!!!!
Hi All,
The situation is getting crazy. Last night
17% of our backups failed with error code 47. It happened on only 6 of
the 58 media servers. All the jobs were trying to backup up to one of two
of the four VTL libraries. Looking at the <16> and <32> errors
in /usr/openv/netbackup/logs I see CORBA errors on 3 of the six and Robot
Failures on the other three. While we have many 47 errors on the weekends,
this is a first of this magnitude for a week day. The only change I am
aware of is: last week we increased the memory of 5 of the 6 media servers
from 12GB to 32GB. Is it possible to have TOO much memory?
Environment:
RedHat Linux 64bit running 32Bit NetBackup
6.5.6
4 EMC VTL Libraries (sorry don’t know
model #) 164 drives configured on each.
The failing clients are both UNIX and Windoze
with one Oracle backup failure.
OH, and they only seem to happen between
23:00 and 04:00 (approximately)
ANY suggestions would be greatly appreciated.
Regards,
Patrick Whelan
VERITAS Certified NetBackup
Support Engineer for UNIX.
VERITAS Certified NetBackup
Support Engineer for Windows.
netbackup AT whelan-consulting.co DOT uk
_____________________________________________________________
DTCC DISCLAIMER: This email and any files transmitted with it are confidential
and intended solely for the use of the individual or entity to whom they
are addressed. If you have received this email in error, please notify
us immediately and delete the email and any attachments from your system.
The recipient should check this email and any attachments for the presence
of viruses. The company accepts no liability for any damage caused by any
virus transmitted by this email._______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
_______________________________________________
Veritas-bu maillist - Veritas-bu AT mailman.eng.auburn DOT edu
http://mailman.eng.auburn.edu/mailman/listinfo/veritas-bu
|
|
|