Enable Jumbo Frames on Hardware ISCSI HBA vmhba

If you need to use jumbo frames on your ISCSI you need to run this command from the command line of the ESX host:

esxcfg-hwiscsi -j enable <vmhbaX>

e.g.

esxcfg-hwiscsi -j enable vmhba1

You’ll need to reboot to let the changes take effect. To verify run:
esxcfg-hwiscsi -l – lists the current settings.

Useful link: http://www.vi-tips.com/2009/04/configuration-of-iscsi-in-vmware-vi3.html

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