Thanks guys, Here is a lot of output...hopefull it will help

Mount sting on linux client

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


                                           Vserver: test-nfs
                                General NFS Access: true
             RPC GSS Context Cache High Water Mark: 0
                              RPC GSS Context Idle: 0
                                            NFS v3: enabled
                                          NFS v4.0: disabled
                                      UDP Protocol: enabled
                                      TCP Protocol: enabled
                               Spin Authentication: disabled
                              Default Windows User: -
                       Enable NFSv3 EJUKEBOX error: true
 Require All NFSv3 Reads to Return Read Attributes: false
Show Change in FSID as NFSv3 Clients Traverse Filesystems: enabled
Enable the Dropping of a Connection When an NFSv3 Request is Dropped: enabled
                Vserver NTFS Unix Security Options: use_export_policy
                     Vserver Change Ownership Mode: use_export_policy
                        NFS Response Trace Enabled: false
                    NFS Response Trigger (in secs): 60
                         UDP Maximum Transfer Size: 32768
                         TCP Maximum Transfer Size: 65536
                       NFSv3 TCP Maximum Read Size: 65536
                      NFSv3 TCP Maximum Write Size: 65536
                               NFSv4.0 ACL Support: disabled
                   NFSv4.0 Read Delegation Support: disabled
                  NFSv4.0 Write Delegation Support: disabled
Show Change in FSID as NFSv4 Clients Traverse Filesystems: enabled
                          NFSv4.0 Referral Support: disabled
                           NFSv4 ID Mapping Domain: defaultv4iddomain.com
NFSv4 Validate UTF-8 Encoding of Symbolic Link Data: disabled
               NFSv4 Lease Timeout Value (in secs): 30
               NFSv4 Grace Timeout Value (in secs): 45
Preserves and Modifies NFSv4 ACL (and NTFS File Permissions in Unified Security Style): enabled
                     NFSv4.1 Minor Version Support: disabled
                                     Rquota Enable: disabled
                  NFSv4.1 Implementation ID Domain: netapp.com
                    NFSv4.1 Implementation ID Name: NetApp Release 8.2.2P1 Cluster-Mode
                    NFSv4.1 Implementation ID Date: Wed Oct 08 05:09:35 2014
                      NFSv4.1 Parallel NFS Support: enabled
                          NFSv4.1 Referral Support: disabled
                               NFSv4.1 ACL Support: disabled
                              NFS vStorage Support: disabled                   
                             Default Windows Group: -                          
                   NFSv4.1 Read Delegation Support: disabled                   
                  NFSv4.1 Write Delegation Support: disabled                   
Number of Slots in the NFSv4.x Session slot tables: 180                        
Size of the Reply that will be Cached in Each NFSv4.x Session Slot (in bytes): 640
                    Maximum Number of ACEs per ACL: 400                        
                               NFS Mount Root Only: enabled                    
                                     NFS Root Only: disabled                   
 Validation of Qtree IDs for Qtree File Operations: enabled        

I dont think e have jumbo frames


Client (this oneis VM)
[root@testvm /]# netstat -i
Kernel Interface table
Iface       MTU Met    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0       1500   0  1038372      0      0      0  1135416      0      0      0 BMRU
            

Netstat on netapp

Name   Mtu   Network             Address             Ipkts  Ierrs  Opkts  Oerrs  Collis  Queue
e0a     9000 169.254             169.254.47.1 59369830      0  54149807      0       0   8637
e0c     9000 169.254             169.254.117. 82671665      0  78518409      0       0   9067
e0i*    1500 none                none           567      0     80      0       0  131071
e0j*    1500 none                none             0      0      0      0       0  131071
e0k*    1500 none                none             0      0      0      0       0  131071
e0l*    1500 none                none             0      0      0      0       0  131071
e0M     1500 10.x.x/24         10.x.x.x  7349242      0  6599312      0       0    356
e0M     1500 10.x.x/24         10.x.x.x  7349242      0  6599312      0       0    356
e0P     1500 192.168/22          192.168.3.21 5121269      0  4467290      0       0     55
lo      9188 127                 localhost    482731      0  482731      0       0      0
losk    9188 127                 localhost-20     0      0  5127955      0       0      0
a0a     1500 none                none         6685656      0  217144      0       0      0
a0a-70  1500 10.x.x/24         10.x.x.x   865274      0     32      0       0      0
a0a-67  1500 10.x.x/24         10.9.9.9  5816787      0  55541      0       0      0


                 Node: testA
 Interface Group Name: a0a
Distribution Function: ip
        Create Policy: singlemode
          MAC Address: 02:a0:98:5f:40:46
   Port Participation: partial
        Network Ports: e0b, e0d
             Up Ports: e0b
           Down Ports: e0d

                 Node: testB
 Interface Group Name: a0a
Distribution Function: ip
        Create Policy: singlemode
          MAC Address: 02:a0:98:5e:fa:1b
   Port Participation: partial
        Network Ports: e0b, e0d
             Up Ports: e0d
           Down Ports: e0b
2 entries were displayed.

netstat from client
[root /]# netstat -i                                                                                                                                              
Kernel Interface table
Iface       MTU Met    RX-OK RX-ERR RX-DRP RX-OVR    TX-OK TX-ERR TX-DRP TX-OVR Flg
eth0       1500   0  1245999      0      0      0  1363848      0      0      0 BMRU



                  Vserver: test-nfs
                                Policy Name: Admin_host
                                 Rule Index: 1
                            Access Protocol: nfs
Client Match Hostname, IP Address, Netgroup, or Domain: 10.2.9.2
                             RO Access Rule: any
                             RW Access Rule: any
User ID To Which Anonymous Users Are Mapped: 65534
                   Superuser Security Types: any
               Honor SetUID Bits in SETATTR: true
                  Allow Creation of Devices: true
                 NTFS Unix Security Options: fail
         Vserver NTFS Unix Security Options: use_export_policy
                      Change Ownership Mode: restricted
              Vserver Change Ownership Mode: use_export_policy

                                    Vserver: test-nfs
                                Policy Name: default
                                 Rule Index: 1
                            Access Protocol: nfs
Client Match Hostname, IP Address, Netgroup, or Domain: 0.0.0.0/0
                             RO Access Rule: any
                             RW Access Rule: never
User ID To Which Anonymous Users Are Mapped: 65534
                   Superuser Security Types: none
               Honor SetUID Bits in SETATTR: true
                  Allow Creation of Devices: true
                 NTFS Unix Security Options: fail
         Vserver NTFS Unix Security Options: use_export_policy
                      Change Ownership Mode: restricted
              Vserver Change Ownership Mode: use_export_policy

                                    Vserver: test-nfs
                                Policy Name: testvm
                                 Rule Index: 1
                            Access Protocol: nfs
Client Match Hostname, IP Address, Netgroup, or Domain: 10.9.9.3
                             RO Access Rule: sys
                             RW Access Rule: sys
User ID To Which Anonymous Users Are Mapped: 65534                             
                   Superuser Security Types: sys                               
               Honor SetUID Bits in SETATTR: true                              
                  Allow Creation of Devices: true                              
                 NTFS Unix Security Options: fail                              
         Vserver NTFS Unix Security Options: use_export_policy                 
                      Change Ownership Mode: restricted                        
              Vserver Change Ownership Mode: use_export_policy                 
                                                                
                             Vserver: test-nfs    
                             Policy Name: test-sol                        
                                 Rule Index: 2                                 
                            Access Protocol: nfs                               
Client Match Hostname, IP Address, Netgroup, or Domain: 10.30.20.20          
                             RO Access Rule: sys                               
                             RW Access Rule: sys                               
User ID To Which Anonymous Users Are Mapped: 65534                             
                   Superuser Security Types: sys                               
               Honor SetUID Bits in SETATTR: true                              
                  Allow Creation of Devices: true                              
                 NTFS Unix Security Options: fail                              
         Vserver NTFS Unix Security Options: use_export_policy                 
                      Change Ownership Mode: restricted                        
              Vserver Change Ownership Mode: use_export_policy  

  (network port cdb show)
                                    Auto-Neg   Duplex  Speed     Flowcontrol
Node   Port    Role         MTU     Admin      Admin   Admin     Admin
------ ------- ------------ ------- ---------- ------- --------- -----------
testB
       a0a     data         1500    true       auto    auto      full
       a0a-670 data         1500    true       auto    auto      full
       a0a-709 data         1500    true       auto    auto      full
       e0M     node-mgmt    1500    true       full    auto      none
       e0a     cluster      9000    true       full    auto      none
       e0b     data         1500    true       full    auto      none
       e0c     cluster      9000    true       full    auto      none
       e0d     data         1500    true       full    auto      none
       e0i     data         1500    true       full    auto      none
       e0j     data         1500    true       full    auto      none
       e0k     data         1500    true       full    auto      none
       e0l     data         1500    true       full    auto      none
testA
       a0a     data         1500    true       auto    auto      full
       a0a-670 data         1500    true       auto    auto      full
       a0a-709 data         1500    true       auto    auto      full
       e0M     node-mgmt    1500    true       full    auto      none
       e0a     cluster      9000    true       full    auto      none
       e0b     data         1500    true       full    auto      none
       e0c     cluster      9000    true       full    auto      none
       e0d     data         1500    true       full    auto      none
       e0i     data         1500    true       full    auto      none
       e0j     data         1500    true       full    auto      none
       e0k     data         1500    true       full    auto      none
       e0l     data         1500    true       full    auto      none
24 entries were displayed.


On Monday, December 22, 2014 2:50 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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