3 Responses to VM-FEX VMDirectPath Mode Configuration(1/2)

1. Gustavo says:

   February 7, 2013 at 7:57 pm

   Hi, nice post !

   Do you know why we can´t enable DirectPath I/O on RedHat 6 X64 servers?
   We have all memory reserved, but even that way it won´t goes to enable.

   Our windows 2008 Enterprise servers are working fine with DirectPath I/O plus Performace Monde on UCS DVS.

   Tks
   Gustavo

   Reply
   • ucsguru says:

     February 9, 2013 at 8:46 am

     Hi Gustavo

     The fact that you have your Windows servers working correctly it sounds like a RHEL optimisation is missing somewhere.

     Try working through the below doc
     http://www.cisco.com/en/US/solutions/collateral/ns340/ns517/ns224/ns944/basic_troubleshooting_vm_fex_ns1124_Networking_Solutions_White_Paper.html

     If still no joy contact TAC

     Regards
     Colin

     Reply
     • scott.joachim@gmail.com says:

       November 5, 2013 at 4:23 am

       I would venture to say that the RHEL6 Guest needs to have vmtools installed. DirectPath will not be enable without vmtools for linux installed on the RHEL6 OS.

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