Cannot add NFS datastore from Netapp

[HendersonD]

My host was working fine with this datastore up until today. Today I loaded Netapp's Virtual Storage Console 2.0.1 onto my Virtualcenter server. It creates a tab in the client. On this tab it shows all the Netapp datastores and the hosts. It also shows if the host and datastores are configured properly and if all settings are optimal. Several settings, mostly NFS settings, were not optimal so it set them to the desire values. After doing this I lost access to the NFS export. After working on this for several hours, I need help. Below is the vmkernel log files that show the error. Any suggestions?

Oct 28 19:34:47 vmkernel: 0:03:35:16.560 cpu2:5627)WARNING: NFS: 913: RPC error 13 (RPC was aborted due to timeout) trying to get port for Mount Program (100005) Version (3) Protocol (TCP) on Server (10.121.126.127)

Oct 28 19:34:47 vmkernel: 0:03:35:16.560 cpu2:5627)NFS: 160: NFS mount 10.121.126.127:/vol/DRVMWare/DRVMWare failed: Unable to connect to NFS server

Oct 28 19:34:47 vobd: Oct 28 19:34:47.876: 12916578651us: http://esx.problem.vmfs.nfs.mount.connect.failed Failed to mount to server 10.121.126.127 mount point /vol/DRVMWare/DRVMWare. Error: Unable to connect to NFS server.

Oct 28 19:34:47 Hostd: 2010-10-28 19:34:47.876 41D37B90 error 'FSVolumeProvider' opID=D4ECDADE-00000186-4e VmkCtl mount or ProcessNas failed: Unable to complete Sysinfo operation. Please see the VMkernel log file for more details.

Oct 28 19:34:47 Hostd: 2010-10-28 19:34:47.877 42140B90 info 'ha-eventmgr' Event 75 : Failed to mount to the server 10.121.126.127 mount point /vol/DRVMWare/DRVMWare. Unable to connect to NFS server

[krishnaprasad]

Can you check if the NFS server is accessible to outside network by showmount command?

showmount -e <NFS Server IP> # this will show all the exported NFS shares.

If this lists the NFS shares properly, then it might be something to do with vmkernel portgroup accessing NFS server.

[HendersonD]

I finally figured out the problem after many hours, a complete rebuild of the host and updating all the firmware on the host. I did two things, one of which fixed it:

- I disabled then enabled flow control on the ESX host

- I have two nics attached for NFS traffic. I changed the order of the nics in the client

I then added the NFS export fine. If you are in IT long enough there are always a few long nights, this was one of them.

[fazlul]

I have also the same Problem  ESX can no longer see NFS storage/mount storage on Controller A (Netapp) filer after a restart of the filer last night. Controller A on Netapp can not see requests come to it from the ESX hosts.Controller B is working .

Host configuration is HP DL380 G7 whit two 10 GB nic card

Cause: It occurred after the restart of the Controller A filer. A restart of the filer shouldn't cause this, but after it had been restarted we had this problem.

Basic testing done during trouble shooting: -

1. Restart host and esx management services.
2 .ESX and Netapp were able to resolve DNS
3. Tried to check for connectivity by ping and vmkping commands.Connectivity Seemed Fine. ESX and Netapp Controller A - It is able to jumbo frame ping       between the devices
4. Tried to mount the Volume in command line and it failed.

5.  Tried to Mount the Volume through VI Client And Failed

6. Disabled then enabled flow control on the ESX host.

7.  Changed the order of the nics(10GB) in the client

Can anyone please help?