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VMware: WARNING: VFAT: 155: File_Ioctl

Today I was troubleshooting a disconnected vSphere 4.1 u1 host in the vCenter cluster by a customer. After connecting ILO and troubleshooting the vmkernel log I saw some errors flooding:



WARNING: VFAT: 155: File_Ioctl
Feb 10 21:56:45 vmkernel: 2:03:12:35.935 cpu0:672979)WARNING: VFAT: NotSupported_File_Ioctl:155: File_Ioctl
Aug 15 16:30:59 vmkernel: 122:14:58:30.147 cpu7:45795719)WARNING: VFAT: 155: File_Ioctl



These messages are generated by the VMware ESXi BusyBox implementation during interactions with the host’s filesystems.

These messages are informational and can be safely ignored.

This issue is resolved in ESXi 4.1 Update 2.


Source: VMware


Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has over 15 years experience in IT, primary focus: virtualization and modern worksplace.

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  1. Casandra
    August 25th, 2012  (Quote) at 04:34  (Quote) | #1

    Hehe ok, wierd error message

  2. Brynn Vermilyea
    August 27th, 2012  (Quote) at 18:59  (Quote) | #2

    Okay: ignored

  3. jordans
    September 19th, 2012  (Quote) at 10:13  (Quote) | #3

    cheers, thanks

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