Question: How do I find the WWN number of a LUN in Linux?

How do I find my WWN number?

Finding a WWN on a Windows host

  1. Verify that the Fibre Channel adapters and device drivers are installed.
  2. Log on to the Windows host with administrator access.
  3. Go to the LightPulse Utility to open the LightPulse Utility window. …
  4. On the LightPulse Utility window, verify that any installed adapters appear in the tree.

What is LUN and WWN?

the Lun Id is a presentation setting per server, not per logical disk. … Each vDisk (LUN) would have a full address including the port and bus it is on. It could also use the unique identifier of the LUN which the Storage Array assignes to it upon creation… the LUN WWN (or what looks similar to a WWN).

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.

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.

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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’.

What is LUN in SAN?

In a storage area network (SAN), a logical unit number (LUN) is used to identify a logical unit, which is a device addressed by SCSI. A storage system partitions physical disks into parts with logical addresses and allows hosts to access the parts. … Generally, a LUN is a logical disk created on a SAN storage system.

How do I find my netapp LUN ID in Linux?

on esx host, go to configuration tab, storage adapters, then highlight the vmhba (fc or iscsi) that the lun is on. Change from “devices” tab to “paths” tab… scroll to target. There, you will find the system id of the netapp filer.

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.

How do I find my Wwid number in Linux?

After changes, power on the VM and then run :

  1. For RHEL7. To get the WWID of say, /dev/sda , run this command: # /lib/udev/scsi_id –whitelisted –replace-whitespace –device=/dev/sda.
  2. For RHEL6. To get the WWID of say, /dev/sda , run this command: …
  3. For RHEL5. #scsi_id -g -u -s /block/sdb 36000c2931a129f3c880b8d06ccea1b01.
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What is a 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.

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