Host is goes down, need to identify root cause

Hi, today morning we find out that one our Host VMWare ESXi 5.1.0 1065491 was in down state. last event that we fond in log was

Device or filesystem with identifer [mpx.vmhba32:C0:T0:L0] has entered the All Paths Down state. warning

30.11.2013 14:48:20

rupesxvm03

I'm trying to find what is mpx.vmhba32 using esxcli, but there is no such device. Any idea how can i find out it?

thank you.

C:\Program Files (x86)\VMware\VMware vSphere CLI\bin>esxcli -s rupesxvm01 -u root storage core path list
Enter password:
sata.vmhba0-sata.0:0-mpx.vmhba0:C0:T0:L0
   UID: sata.vmhba0-sata.0:0-mpx.vmhba0:C0:T0:L0
   Runtime Name: vmhba0:C0:T0:L0
   Device: mpx.vmhba0:C0:T0:L0
   Device Display Name: Local PLDS CD-ROM (mpx.vmhba0:C0:T0:L0)
   Adapter: vmhba0
   Channel: 0
   Target: 0
   LUN: 0
   Plugin: NMP
   State: active
   Transport: sata
   Adapter Identifier: sata.vmhba0
   Target Identifier: sata.0:0
   Adapter Transport Details: Unavailable or path is unclaimed
   Target Transport Details: Unavailable or path is unclaimed
   Maximum IO Size: 131072

unknown.vmhba1-unknown.0:32-t10.DP______BACKPLANE000000
   UID: unknown.vmhba1-unknown.0:32-t10.DP______BACKPLANE000000
   Runtime Name: vmhba1:C0:T32:L0
   Device: t10.DP______BACKPLANE000000
   Device Display Name: Local DP Enclosure Svc Dev (t10.DP______BACKPLANE000000)
   Adapter: vmhba1
   Channel: 0
   Target: 32
   LUN: 0
   Plugin: NMP
   State: active
   Transport: parallel
   Adapter Identifier: unknown.vmhba1
   Target Identifier: unknown.0:32
   Adapter Transport Details: Unavailable or path is unclaimed
   Target Transport Details: Unavailable or path is unclaimed
   Maximum IO Size: 327680

unknown.vmhba1-unknown.2:0-naa.60026b90476eaf001345d32615b4d187
   UID: unknown.vmhba1-unknown.2:0-naa.60026b90476eaf001345d32615b4d187
   Runtime Name: vmhba1:C2:T0:L0
   Device: naa.60026b90476eaf001345d32615b4d187
   Device Display Name: Local DELL Disk (naa.60026b90476eaf001345d32615b4d187)
   Adapter: vmhba1
   Channel: 2
   Target: 0
   LUN: 0
   Plugin: NMP
   State: active
   Transport: parallel
   Adapter Identifier: unknown.vmhba1
   Target Identifier: unknown.2:0
   Adapter Transport Details: Unavailable or path is unclaimed
   Target Transport Details: Unavailable or path is unclaimed
   Maximum IO Size: 327680

usb.vmhba33-usb.0:0-mpx.vmhba33:C0:T0:L0
   UID: usb.vmhba33-usb.0:0-mpx.vmhba33:C0:T0:L0
   Runtime Name: vmhba33:C0:T0:L0
   Device: mpx.vmhba33:C0:T0:L0
   Device Display Name: Local USB CD-ROM (mpx.vmhba33:C0:T0:L0)
   Adapter: vmhba33
   Channel: 0
   Target: 0
   LUN: 0
   Plugin: NMP
   State: active
   Transport: usb
   Adapter Identifier: usb.vmhba33
   Target Identifier: usb.0:0
   Adapter Transport Details: Unavailable or path is unclaimed
   Target Transport Details: Unavailable or path is unclaimed
   Maximum IO Size: 122880

usb.vmhba33-usb.0:0-mpx.vmhba33:C0:T0:L1
   UID: usb.vmhba33-usb.0:0-mpx.vmhba33:C0:T0:L1
   Runtime Name: vmhba33:C0:T0:L1
   Device: mpx.vmhba33:C0:T0:L1
   Device Display Name: Local USB Direct-Access (mpx.vmhba33:C0:T0:L1)
   Adapter: vmhba33
   Channel: 0
   Target: 0
   LUN: 1
   Plugin: NMP
   State: active
   Transport: usb
   Adapter Identifier: usb.vmhba33
   Target Identifier: usb.0:0
   Adapter Transport Details: Unavailable or path is unclaimed
   Target Transport Details: Unavailable or path is unclaimed
   Maximum IO Size: 122880

C:\Program Files (x86)\VMware\VMware vSphere CLI\bin>