Data ONTAP Discussions

Network Mismatch on two controllers/filers

Hi guys ,

 

NetApp Release 8.1.1P1 7-Mode

FAS2240-4

on NPD01

36 disks BSAS drives

 

I keep getting network errors and we seem to have IO issues on these filers. Does anyone know how to fix this and what steps I need to take?

Here is the error below.

 

Following is the content of /etc/rc file-

#Auto-generated by setup Wed Dec 16 06:11:22 GMT 2009

hostname NPD01

ifgrp create single ifgrp-cifs e0a e0c

ifgrp create single ifgrp-ipstorage e0b e0d

 

ifconfig ifgrp-cifs `hostname`-ifgrp-cifs netmask 255.255.192.0 mtusize 1500 trusted wins partner ifgrp-cifs up

ifconfig ifgrp-ipstorage `hostname`-ifgrp-ipstorage netmask 255.255.255.0 mtusize 1500 trusted -wins partner ifgrp-ipstorage up

 

ifconfig e0M `hostname`-e0M netmask 255.255.192.0 mtusize 1ult 10.114.0.1 1

routed on

options dns.domainname npd.nwct.local

options dns.enable on

options nis.enable off

savecore

 

 

 

Following is the content of /etc/rc file-

#Auto-generated by setup Wed Dec 16 04:38:18 GMT 2009

hostname NPD02

ifgrp create single ifgrp-cifs e0a e0c

ifgrp create single ifgrp-ipstorage e0b e0d

 

ifconfig ifgrp-cifs `hostname`-ifgrp-cifs netmask 255.255.192.0 mtusize 9000 trusted wins partner ifgrp-cifs up

 

ifconfig e0M `hostname`-e0M netmask 255.255.192.0 mtusize 1500 trusted wins mediatype auto flowcontrol full down

ifconfig ifgrp-ipstorage `hostname`-ifgrp-ipstorage netmask 255.255.255.0 partner ifgrp-ipstorage mtusize 9000 trusted -wins up

 

route add default 10.114.0.1 1

routed on

options dns.domainname npd.nwct.local

options dns.enable on

options nis.enable off

savecore

 

6 REPLIES 6

Re: Network Mismatch on two controllers/filers

When you say network errors, what do you mean?

 

Run ifstat -a and look at the XON / XOFF

 

 

Re: Network Mismatch on two controllers/filers

 

GD -

 

I notice a mismatch in the MTU between the two ifgrps on filer A and filer B ...

 


I hope this response has been helpful to you.

 

At your service,

 

Eugene E. Kashpureff, Sr.
Independent NetApp Consultant http://www.linkedin.com/in/eugenekashpureff
Senior NetApp Instructor, FastLane US http://www.fastlaneus.com/
(P.S. I appreciate 'kudos' on any helpful posts.)

 

Re: Network Mismatch on two controllers/filers

all show zero

Re: Network Mismatch on two controllers/filers

yes we had this setup to deal with latency issues between filer and VMware servers. we will probably change this back since it didnt make a difference.

Re: Network Mismatch on two controllers/filers

 

GD -

 

Using Jumbo frames is Best Practice in many environs.

Params should match end to end.

 

I was noting that there was a mismatch in the configuration between the two controllers and ifgrps.

This was likely the origin of the error message you were seeing.

 


I hope this response has been more helpful to you.

 

At your service,

 

Eugene E. Kashpureff, Sr.
Independent NetApp Consultant http://www.linkedin.com/in/eugenekashpureff
Senior NetApp Instructor, FastLane US http://www.fastlaneus.com/
(P.S. I appreciate 'kudos' on any helpful posts.)

 
 

 

Re: Network Mismatch on two controllers/filers


@ekashpureff wrote:

 

GD -

 

Using Jumbo frames is Best Practice in many environs.

Params should match end to end.

 

I was noting that there was a mismatch in the configuration between the two controllers and ifgrps.

This was likely the origin of the error message you were seeing.

 


I hope this response has been more helpful to you.

 

At your service,

 

Eugene E. Kashpureff, Sr.
Independent NetApp Consultant http://www.linkedin.com/in/eugenekashpureff
Senior NetApp Instructor, FastLane US http://www.fastlaneus.com/
(P.S. I appreciate 'kudos' on any helpful posts.)

 
 

 


 

 

 I see what your saying. Does it matter that I have one Filer that is strickly for NFS shares and the other volume with the 9000 mtu has only One ISCI volume?

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