We have had a similar problem with NetApp F720 where couple times a day NetApp would stop responding. On one occassion we had an occurence where a single box was trying to write out a 2 GB core dump file to the NetApp which completely hosed it down. Even without misbehaving problems we had issues with it. We had a script from NetApp that was continuously doing sysstat, nfsstat but there were no indications on what was going on. This is all on a network of RedHat 7.2 clients with 2.4.9-31 RedHat stock kernel. What saved us was switching to NFS over TCP. I am not very fond of that particular solution since it is more like treating the symptoms and not the root cause.
Vladimir
--- "Lever, Charles" <[email protected]> wrote:
>i'm wondering what are the common elements here:
>
>is the EEpro 100 ethernet card common to all clients
>that exhibit this problem? NFSv3 over UDP? what is
>the nature of the network flood -- ICMP packets, or
>UDP? does "top" on the client show whether a particular
>process or processes is spinning?
>
>a tcpdump or at least "netstat -s" on the client after
>the network is unplugged might be helpful.
>
>> -----Original Message-----
>> From: Cooke, Alan [mailto:[email protected]]
>> Sent: Friday, May 17, 2002 9:15 AM
>> To: [email protected]
>> Subject: RE: [NFS] RedHat 7.3 crashed NetApp?
>>
>>
>> While running the 2.4.18-4smp kernel (RedHat), and testing
>> NFS3, our NetApp filer running OnTap 6.1.1R2 experienced
>> massive incoming traffic from the Linux client in question.
>> The Linux client required rebooting. We have been able to
>> repeat this behavior, and are suspicious of the network
>> driver on the Linux client which is using the eth0 driver. A
>>
>> Sound familiar?
>>
>> Alan Cooke
>> Hewlett-Packard Company
>> ISS/EDA
>> Office: 281-518-9775
>> Fax : 281-518-8015
>> Email : [email protected]
>>
>> "If everything seems under control, you're just not going
>> fast enough."
>> -- Mario Andretti
>>
>>
>>
>>
>>
>>
>>
>>
>> -----Original Message-----
>> From: H . J . Lu [mailto:[email protected]]
>> Sent: Thursday, May 16, 2002 5:39 PM
>> To: [email protected]
>> Subject: [NFS] RedHat 7.3 crashed NetApp?
>>
>>
>> Has anyone seen
>>
>> http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=65069
>>
>>
>> H.J.
>>
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>
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