So, got this data so far:

appears to be using a0a (single mode e0b/e0d, e0b active, e0d not so much with IP distribution)
10.9.9.9:/test1 on /mnt1 type nfs (rw,bg,hard,intr,rsize=32768,wsize=32768,vers=3,tcp,timeo=600,addr=10.9.9.9)
 --> tried both intr and nointr
Confirmed v3 is ENABLED and all v4+ are disabled on the NFS vserver
TCP & UDP are both enabled on vserver

No Jumbo frames

No blatant errors showing via netstat -i on the client or netapp side

Flow control appears off from cdot point of view.

have the export-policy rule data

Waiting for this data:

vol show -field policy

Wondering if it might be related.

--> Iluhes

Please send:
vol show -field policy
net int show -vserver test-nfs -instance
(would like to see all the network interface details)

Also send the client-side "ifconfig -a" for all interfaces, including netstat -rn

maybe there is a bad route someplace.

--tmac

Tim McCarthy
Principal Consultant


On Mon, Dec 22, 2014 at 3:50 PM, Parisi, Justin <Justin.Parisi@netapp.com> wrote:

Are you specifying NFSv3 in the mount? Or using NFSv4?

 

I’d suggest getting the info tmac mentioned. Like others have said, impossible to solve with such limited info.

 

From: Iluhes [mailto:iluhes@yahoo.com]
Sent: Monday, December 22, 2014 3:49 PM
To: Parisi, Justin; Alexander Griesser
Cc: Toasters
Subject: Re: new cdot NFS vserver. NFS mount point hang on I/O

 

New clients. RHEL 6.6

 

On Monday, December 22, 2014 2:43 PM, "Parisi, Justin" <Justin.Parisi@netapp.com> wrote:

 

How old are your clients?

 

From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Iluhes
Sent: Monday, December 22, 2014 3:42 PM
To: Alexander Griesser
Cc: Toasters
Subject: Re: new cdot NFS vserver. NFS mount point hang on I/O

 

Thanks.

I can get unmounted and remounted, but I cannot overcome the issue of copy any files into filesystem, or writing anything to it. Nothing besides mkdir and touch works..

Something is wrong with the setup...

 

On Monday, December 22, 2014 2:37 PM, Alexander Griesser <ag@anexia.at> wrote:

 

umount -l /mountpoint

 

should at least get you going on the box again.

When the filesystem had bren mounted on linux, can you post the output of the 'mount' command so we can see the mount options in use?

 

best,

Alexander Griesser

Head of Systems Operations

 

ANEXIA Internetdienstleistungs GmbH

 

E-Mail: ag@anexia.at

 

Anschrift Hauptsitz Klagenfurt:Feldkirchnerstraße 140, 9020 Klagenfurt

Geschäftsführer: Alexander Windbichler

Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U63216601


Am 22.12.2014 um 21:16 schrieb Iluhes <iluhes@yahoo.com>:

Yes Jordan, have to do fuser -km actually...but even that works 50% of the time. It will hang the box 

 

On Monday, December 22, 2014 1:51 PM, Jordan Slingerland <Jordan.Slingerland@independenthealth.com> wrote:

 

Does not solve the root of your problem, but can you umount –f ?

 

From: toasters-bounces@teaparty.net [mailto:toasters-bounces@teaparty.net] On Behalf Of Iluhes
Sent: Monday, December 22, 2014 2:42 PM
To: Toasters
Subject: new cdot NFS vserver. NFS mount point hang on I/O

 

Hi Folks,

New cdot isntall, new NFS vserver. NFS shares can be mounted OK on linnux and solaris clients.

I can mkdir and touch files. Copy or move or DD or any I/O operation completly hangs the mount point, the process cannot be Control-C, and kill -9 does not even help

 

 

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