Hi,
I don't think that is supported from VMWare side. PLease see the note from Vmware.
https://pubs.vmware.com/vsphere-50/index.jsp?topic=%2Fcom.vmware.vddk.pg.doc_50%2FvddkDataStruct.5.5.html
In this mode, the virtual disk library obtains information from an ESX/ESXi host about the layout of VMFS LUNs, and using this information, reads data directly from the SAN or iSCSI LUN where a virtual disk resides. This is the fastest transport method for applications deployed on a SAN-connected ESX/ESXi host.
SAN mode requires applications to run on a physical machine (a backup server, for example) with access to FibreChannel or iSCSI SAN containing the virtual disks to be accessed. This is an efficient data path, as shown in
SAN Transport Mode for Virtual Disk, because no data needs to be transferred through the production ESX/ESXi host. If the backup server is also a media server, with optical media or tape drives, backups can be made entirely LAN-free.
Then from the logs.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Running in VM: moref:vm-2378
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Transport mode san failed pre-flight check. Ignoring.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Checking transport mode hotadd.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Transport mode hotadd passed pre-flight checks. Adding to list of available transports.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Checking transport mode nbdssl.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Transport mode nbdssl passed pre-flight checks. Adding to list of available transports.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Checking transport mode nbd.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Transport mode nbd passed pre-flight checks. Adding to list of available transports.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Narrowing down applicable transport modes.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] 2015-11-16T11:02:20.720+03:00 [01716 trivia 'transport'] Disregarding transport mode san.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] VixDiskLib: VixDiskLib_ConnectEx: No transport modes available to access disks: Error 3 at 3343.
11:02:20.0720 : g_vixInterfaceLogger:../libvix.cpp:1844 <DEBUG> : [VFM_ESINFO] VixDiskLib: VixDiskLib_Disconnect: Disconnect.