How do I find my WWN no in Linux?

HBA card wwn number can be manually identified by filtering the associated files under the “/sys” file system. The files under sysfs provide information about devices, kernel modules, filesystems, and other kernel components, which are typically mounted automatically by the system at /sys.

How do I find my WWN number in Linux?

How to find WWN number of HBA and scan the FC Luns in LINUX

  1. Identify the number of HBA adapters.
  2. To get the WWNN (World Wide Node Number) of HBA or FC card in Linux.
  3. To get the WWPN (World Wide Port Number) of HBA or FC card in Linux.
  4. Scan the newly added or rescan the existing LUNs in Linux.

Where is HBA details in Linux?


You probably will find your HBA module in /etc/modprobe. conf. There you can identify with “modinfo” if the module is for QLOGIC or EMULEX. Then use SanSurfer (qlogic) or HBA Anywhere (emulex) to obtain detailed and accurate information.

How do I find my FC host in Linux?

Find out how many host bus adapter configured in the Linux box. you can use “systool -fc_host -v” to verify available FC in the system.

What is the WWN number?

A WWN is a number that is hard-coded into network storage devices, such as fiber channels and advanced technology attachments (ATA). To simplify, a WWN is like a MAC address but for network storage devices.

How do I find my WWN Datastore number?

2. How to find HBA WWN via ESXi Shell / CLI:

  1. Connect to ESXi shell either via putty/SSH or DCUI (Direct Console User Interface) / server console.
  2. Run ‘ls /proc/scsi/’ and check the folder names: …
  3. Look for a folder like ‘qla2xxx’ – QLogic HBA, ‘lpfc820’ – Emulex HBA, ‘bnx2i” – Brocade HBA;
  4. Run ‘ls /proc/scsi/qla2xxx’.

How do I find HBA model in Linux?

Check HBA card and its driver’s info in linux(RHEL6)

  1. To check if the host has HBA card installed and which type of card installed, physiical slot, driver, module information. # lspci | grep -i fibre. …
  2. check if the driver/module loaded in kernel. …
  3. check author,description,mdule file name, license, driver version.

How do I rescan HBA in Linux?

To online scan new LUNs, complete the following steps:

  1. Update the HBA driver by installing or updating the files sg3_utils-*. …
  2. Ensure that DMMP is enabled.
  3. Ensure that the LUNS that need to be expanded are not mounted and are not used by applications.
  4. Run sh -r .
  5. Run multipath -F .
  6. Run multipath .

How do I find my scsi WWN number in Linux?

Method-1: Checking wwn number manually

HBA card wwn number can be manually identified by filtering the associated files under the “/sys” file system.

What is WWN and Wwpn?

WWN – World Wide Name is a unique identifiers on a Fiber Channel nettwork similar to the MAC address of an ethernet network- WWPN – World Wide Port Name is another name for the WWN assigned to the port on FC fabrice. and to add –

Where is HBA WWN on Windows?

run “fcinfo” command in Command Prompt. It will show up HBA connected to the server with WWN.

Where is the WWN of Lun in Windows?

Using Disk Manager

  1. Access Disk Manager under “Computer Management” in “Server Manager” or in the command prompt with diskmgmt.msc.
  2. Right-Click on the side-bar of the disk you wich to view and select “Properties”
  3. You will see the LUN number and the target name. In this example it’s “LUN 3” and “PURE FlashArray”
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