Host profiles and MTU sizes?

[Rteslow]

Hi all,

I'm using vCenter 4.1 and clustering 3 ESX 4.1 hosts.  I created a host profile off of one of my hosts and attached it to the cluster.  I then applied that profile to one of the other hosts in the cluster.  Once the profile was applied I noticed that not all of the settings from the first host made it across.  I use jumbo frames on the iSCSI NICs on the system and even though the host profiled had it's MTI set to 9000, once that profile was applied to another host it had a default MTU of 1500.

Anyone else seen this?

Thanks!

[sleepnow]

I just came across this today.  No soultion as of yet, I think we'll probably have to wait until the next update.

[kmarty009]

I also use MTU 9000 for both ISCSI and NFS.  However, once I apply a Host Profile it wipes out my MTU 9000 and sets it back to 1500...  I have given up on host profiles for now.  Until VMware can support the profiles to retain MTU 9000 I won;t be using them.

I've created a script in the VMA Server I use to add the switches/nics/mtu/ & NFS/ISCSI Volumes.  Let me know if you would like a copy of the script.  It works just as fast as applying a host profile.

Regards,

kmarty009

[titaniumlegs]

Setting MTU is now supported in both vSphere Client and Host Profiles in vSphere 5.  In the Networking --> Properties --> Edit dialog for the vSwitch and VMK ports, there's a place for MTU.

It would be nice if they also added flow control...

Share and enjoy!

[AndreTheGiant]

Is a know issue of host profiles in v4.x

Andre

[RDelaney]

Hi ,

Coud I get a copy of those scripts you mentioned?

Thanks

Ray