Before running below commands, Login to ESXi through SSH or Direct Shell:

QLogic

To determine the firmware for a QLogic fibre adapter, run these commands on the ESXi/ESX host:

1. Go to /proc/scsi/qla####.
   
   Where #### is the model of the Qlogic HBA
2. Run the ls command to see all of the adapters in the directory.
   
   The output appears similar to:
   
   1 2 HbaApiNode
3. Run the command:
   
   head -2 #
   
   Where # is the HBA number.
   
   You see output similar to:
   
   QLogic PCI to Fibre Channel Host Adapter for QLA2340 :
   Firmware version: 3.03.19, Driver version 7.07.04.2vmw

To determine the firmware for a QLogic iSCSI hardware initiator on an ESXi/ESX host:

1. Go to /proc/scsi/qla####.
   
   Where #### is the model of the Qlogic HBA
2. Run the ls command to see all of the adapters in the directory.
   
   You see output similar to:
   
   1 2 HbaApiNode
3. Run the command:
   
   head -4 #
   
   Where # is the HBA number.
   
   You see output similar to:
   
   QLogic iSCSI Adapter for ISP 4022:
   Driver version 3.24
   Code starts at address = 0x82a314
   Firmware version 2.00.00.45

Emulex

To determine the firmware for a Emulex HBA on an ESXi/ESX host:

1. Go to /proc/scsi/lpfc.
   
   Note: the lpfc may be appended with model number appended. For example, /proc/scsi/lpfc820
2. Run the ls command to see all of the adapters in the directory.
   
   You see output similar to:
   
   1 2
3. Run the command:
   
   head -5 #
   
   where # is the HBA number.
   
   You see output similar to:
   
   Emulex LightPulse FC SCSI 7.3.2_vmw2
   Emulex LP10000DC 2Gb 2-port PCI-X Fibre Channel Adapter on PCI bus 42 device 08 irq 42
   SerialNum: BG51909398
   Firmware Version: 1.91A5 (T2D1.91A5)

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