OME 2.1 - Esxi 5.5 OMSA

Hello,

I'm currently attempting to setup our Esxi hosts so that they are able to utilise in-band updating via OME. I thought installing the OMSA vib on to the ESXI host would provide this functionatily but unfortunately it appears it does not as only out-band via the DRAC is selectable when attempting to perform an update.

Is in-band updating a possibility using OME for ESXI 5.5 hosts?

If not then is their any purpose to isntalling OMSA for ESXI hosts as out-band updating via the DRAC is available regardless whether OMSA is installed or not?

Thanks for the help.