The VMware VMkernel TCP/IP networking stack provides networking support in multiple ways for each of the services it handles.

The VMkernel TCP/IP stack handles iSCSI, NFS, and vMotion in the following ways.

iSCSI as a virtual machine datastore.

iSCSI for the direct mounting of .ISO files, which are presented as CD-ROMs to virtual machines.

NFS as a virtual machine datastore.

NFS for the direct mounting of .ISO files, which are presented as CD-ROMs to virtual machines.

Migration with vMotion.

Fault Tolerance logging.

Provides networking information to dependent hardware iSCSI adapters.

If you have two or more physical NICs for iSCSI, you can create multiple paths for the software iSCSI by configuring iSCSI Multipathing. For more information about iSCSI Multipathing, see the iSCSI SAN Configuration Guide.

Note

ESX supports only NFS version 3 over TCP/IP.