aleceiffel
Contributor
Contributor

setup jumbo frames for iSCSI?

I'm using qlogic iSCSI adaptors to connect to an iSCSI SAN. The SAN documentation recomends using jumbo frames for the ethernet setup. I've enabled jumbo frames on the SAN device as well as the switches but I cannot find where I need to do it in ESX 3.5.4.

Where do I enable Jumbo frames for my HBAs?

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3 Replies
lamw
Community Manager
Community Manager

Here is a detail set of instructions on a post by Scott Lowe: http://blog.scottlowe.org/2008/04/22/esx-server-ip-storage-and-jumbo-frames/ You just need to set the MTU on the vSwitch you'll be using and create a vmkernerl interface with the right MTU configuration

=========================================================================

William Lam

VMware vExpert 2009

VMware ESX/ESXi scripts and resources at:

VMware Code Central - Scripts/Sample code for Developers and Administrators

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AndreTheGiant
Immortal
Immortal

It's a hardware initiator, not a software.

So no need of vmkernel interface.

Andre | http://about.me/amauro | http://vinfrastructure.it/ | @Andrea_Mauro
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AndreTheGiant
Immortal
Immortal

iSCSI HBA must be configured in BIOS:

http://communities.vmware.com/thread/210496

If you do not have the MTU property try to upgrade the firmware.

Andre

**if you found this or any other answer useful please consider allocating points for helpful or correct answers

Andre | http://about.me/amauro | http://vinfrastructure.it/ | @Andrea_Mauro
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