Host Side NMP Errors Codes

Understanding SCSI host-side NMP errors/conditions in ESX/ESXi 6.x

This article provides information about the SCSI host status messages that you observe when reviewing NMP errors in the vmkernel log. ​ Code VMK_SCSI_HOST_OK = 0x00 or 0x0 ​ Example : vmkernel: 76:23:45:36.239 cpu11:22687)NMP: nmp_CompleteCommandForPath: Command 0x28 (0x41000b10f000) to NMP device "naa.600601601f7019001 6361881f3b4de11" failed on physical path "vmhba3:C0:T2:L10" H:0x0 D:0x2 P:0x0 Valid sense data: 0x2 0x4 0x3. ​ Definition : ​This status is returned when there is no error on the host side. This is when you see if there is a status for a device or plugin. This status is also when you see valid sense data instead of possible sense data. ​For more Device SCSI status (such as Check Condition), see http://www.t10.org/lists/2status.htm. ​ Code VMK_SCSI_HOST_NO_CONNECT= 0x01 or 0x1 ​ Example : vmkernel: 27:10:19:24.190 cpu1:4552)NMP: nmp_CompleteCommandForPath: Command 0x2a (0x41000504e500) to NMP device "naa.600601602c411800f955e0bbe09fdb11" failed on physical path "vmhba1:C0:T1:L0" H:0x1 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Definition : This status is returned if the connection is lost to the LUN. This can occur if the LUN is no longer visible to the host from the array side or if the physical connection to the array has been removed. For more information, see SCSI events that can trigger ESX server to fail a LUN over to another path (1003433 ​ Code VMK_SCSI_HOST_BUS_BUSY = 0x02 or 0x2 ​ Example : vmkernel: 116:03:44:19.039 cpu4:4100)NMP: nmp_CompleteCommandForPath: Command 0x2a (0x4100020e0b00) to NMP device "sym.029010111 831353837" failed on physical path "vmhba2:C0:T0:L152" H:0x2 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Definition : This status is returned when the HBA driver is unable to issue a command to the device. This status occurs due to dropped FCP frames in the environment. ​Code MK_SCSI_HOST_TIMEOUT= 0x03 or 0x3 ​ Example : vmkernel: 4:10:53:57.450 cpu6:4197)ScsiDeviceIO: 1672: Command 0x1a to device "naa.6006016053702100 6e618a620a1ddf11" failed H:0x3 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. ​ Definition : This status is returned when the command in-flight to the array times out. ​Code VMK_SCSI_HOST_BAD_TARGET= 0x04 or 0x4 Example : vmkernel: 0:00:21:42.980 cpu0:4103)ScsiDeviceIO: SCSICompleteDeviceCommand:747: Command 0x28 to device "naa.6001e4f0191f37 00108a26974d0ffdda" failed H:0x4 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Definition : This status is returned after the driver abort commands to a bad target. Typically this status occurs when the target experiences a hardware error, butit can also occurif a command is sent to a bad target ID. ​Code VMK_SCSI_HOST_ABORT = 0x05 or 0x5 ​ Example : vmkernel: 0:00:13:23.910 cpu20:4251)NMP: nmp_CompleteCommandForPath: Command 0x2a (0x4100010bf9c0) to NMP device "naa.60060480000190 103838533030363542" failed on physical path "vmhba3:C0:T0:L4" H:0x5 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Definition : This status is returned if the driver aborts commands in-flight to the target. This occurs due to a command timeout or parity error in the frame. ​Code VMK_SCSI_HOST_PARITY= 0x06 or 0x6 Definition : This status is returned for generic errors. For example, this status occurs for events not covered by the other errors (such as data overrun or underrun). ​Code VMK_SCSI_HOST_ERROR= 0x07 or 0x7 Example : vmkernel: 0:00:57:27.056 cpu4:4100)NMP: nmp_CompleteCommandFor PhysicalPath: Command 0x16 (0x41000e639880) to NMP device "naa.600601602a1b1 70074c945e4d5d9dc11" failed on physical path "vmhba3:C0:T0:L0" H:0x7 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Definition : This status is returned when a device is reset due to a Storage Initiator Error. This typically occurs due to an outdated HBA firmware or possibly (though rarely) as the result of a bad HBA. For more information on the bad HBA scenario, see One host shows a Storage Initiator Error while all other hosts show SCSI Reservation Conflicts (1021187). ​ Code VMK_SCSI_HOST_RESET= 0x08 or 0x8 ​Example : vmkernel: 0:19:26:42.068 cpu0:4103)NMP: nmp_CompleteCommand ForPath: Command 0x28 (0x4100070e8e80) to NMP device "naa.60060480000190 101883533030323731" failed on physical path "vmhba2:C0:T1:L27" H:0x8 D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Definition : This status is returned when the HBA driver aborts I/O. It also occurs if the HBA resets the target. ​Code VMK_SCSI_HOST_BAD_INTR= 0x09 or 0x9 Definition : This is a legacy error and never be returned. ​Code VMK_SCSI_HOST_PASSTHROUGH = 0x0a or 0xa Definition : This is a legacy error and never be returned. It was meant for a way for drivers to return an I/O that failed due to temporary conditions in the driver and that I/O be retried. ​Code VMK_SCSI_HOST_SOFT_ERROR= 0x0b or 0xb Example : vmkernel: 0:02:59:13.873 cpu4:4302)NMP: nmp_CompleteCommand ForPath: Command 0x2a (0x41000603c840) to NMP device "naa.500000e113a3f090" failed on physical path "vmhba0:C0:T0:L0" H:0xb D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Definition : This status is returned if the HBA driver returns a DID_REQUEUE command. Upon receiving this status, the I/O command is reissued immediately. ​Code VMK_SCSI_HOST_RETRY = 0x0c or 0xc ​ Example : vmkernel: 0:00:21:46.926 cpu3:4099)NMP: nmp_CompleteCommandFor PhysicalPath: Command 0x28 (0x41000cea7d00) to NMP device "naa.6006016042961 700d8f545356140dc11" failed on physical path "vmhba2:C0:T0:L6" H:0xc D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. ​ Definition : This status is returned due to a transient error. When this status is returned, the I/O command is requeued and issued again. ​Code VMK_SCSI_HOST_REQUEUE = 0x0d or 0xd Example : vmkernel: 0:20:34:39.755 cpu0:4103)NMP: nmp_CompleteCommandFor PhysicalPath: Command 0x28 (0x41000fe5fa00) to NMP device "naa.60030d907361 7461305f76766f6c3300" failed on physical path "vmhba2:C0:T0:L63" H:0xd D:0x0 P:0x0 Possible sense data: 0x0 0x0 0x0. Definition : This status is returned when the HBA driver tries to abort a command which then sets the IOSTAT_LOCAL_REJECT status on all commands in the iocb ring. This causes the original command to requeue. ​