How do I get HBA WWN on Linux?

Posted on by David Darling

How do I get HBA WWN on Linux?

Here is a solution to find WWN number of HBA and scan the FC Luns.

  1. Identify the number of HBA adapters. systool -c fc_host -v.
  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 newly added disks or rescan existing LUNs in Linux.

What is WWPN and Wwnn?

A WWPN is a World Wide Port Name; a unique identifier for each Fibre Channel port presented to a Storage Area Network (SAN). Each port on a Storage Device has a unique and persistent WWPN. A World Wide Node Name, WWNN, or WWnN, is a World Wide Name assigned to a node (an endpoint, a device) in a Fibre Channel fabric.

How do I find WWPN number in Linux?

To locate the WWPN without restarting the host, you can use any of the following methods: For QLogic or Emulex adapters, you can find the WWPN in the /proc/scsi/ adapter_type / n directory, where adapter_type is the host adapter type and n is the host adapter number for your card.

Where is HBA card details in Linux?

Re: HOW TO FIND 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 WWN number?

Finding a WWN on a Windows host

  1. Go to the Start menu, select Find and choose the Files and Folders option.
  2. On the Find dialog box, in Named type lputilnt.exe, and from the Look in list, choose the data drive that contains the Emulex mini-port driver.
  3. Choose Find Now to search for the LightPulse utility.

How can I check my HBA status?

Instructions

  1. #lspci -vvv | grep -I HBA. We can see following entries in the output 03:00.1 Fibre Channel: QLogic Corp. ISP2432-based 4Gb Fibre Channel to PCI Express HBA (rev 03)
  2. #systool -v. Or. To check WWNN , run the following command.
  3. #cat /sys/class/fc_host/hostN/node_name. To check port state, run.

Is WWN and WWNN same?

A WWN may be employed in a variety of roles, such as a serial number or for addressability; for example, in Fibre Channel networks, a WWN may be used as a WWNN (World Wide Node Name) to identify an endpoint, or a WWPN (World Wide Port Name) to identify an individual port on a switch.

How do I scan HBA in Linux?

Online rescanning of LUNs on Linux hosts

  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 rescan-scsi-bus.sh -r .
  5. Run multipath -F .
  6. Run multipath .

How do I check my HBA card?

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.

Where is WWN on QLogic HBA in Windows?

To locate the WWPN, perform the steps for the adapter you are using. After installing OneCommand Manager, to launch the application select Start > Programs > Emulex > OCManager. In the left panel, double-click on the host. It will expand to display the WWPN of the HBA installed on the host.

How do I find my WWN virtual machine number?

Alternatively, run the following commands:

  1. Run ” cat /proc/scsi/qla2xxx/6 | grep -A3 ‘SCSI Device Information:’ ” to get WWNN and WWPNs: ~ # cat /proc/scsi/qla2xxx/6 | grep -A3 ‘SCSI Device Information:’
  2. Run ” cat /proc/scsi/qla2xxx/6 | grep ‘Host Device Name’ ” to get vmhba number:

What is WWN number in HBA?

A World Wide Name (WWN) or World Wide Identifier (WWID) is a unique identifier used in storage technologies including Fibre Channel, Parallel ATA, Serial ATA, NVM Express, SCSI and Serial Attached SCSI (SAS).

What is WWN used for?

A World Wide Name (WWN) is a unique identifier that is hard-coded into each Fibre Channel (FC) device by the device’s manufacturer. WWNs provide a method for identifying FC devices across the network. Each WWN conforms to one of several formats defined by the Institute of Electrical and Electronic Engineers (IEEE).

How check LUN visibility in Linux?

Rescanning the service will display all the newly created LUNs that have been mapped to the host….

  1. Using /sys class file. You can use the echo command to scan each scsi host device as below.
  2. Scan lun with multipath/powermt. You can check the current multipath setup using multipath or powermt command.
  3. Using Script.

How do you find the WWN?

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 HBA information in Windows?

Steps

  1. Open the Computer Management window. For.
  2. Double-click Device Manager. A list of installed devices displays.
  3. Expand Storage controllers and double-click the appropriate HBA. The Properties dialog box for the HBA is displayed.
  4. Click Driver.
  5. Obtain the latest supported version from the Emulex or QLogic website.

Where is HBA WWN in Windows 2016?

Here I will tell you one simple method to find the WWN number of FC HBA in Windows Server 2016.

  1. Download the Fcinfo tool on the below. The Fcinfo tool package is in the attachment below.
  2. Install the Fcinfo tool in your OS. We need to install the tool in the OS.
  3. Find the WWN number of the HBA.

What is WWN address?

The world wide name (WWN) is a 64-bit address that identifies a fabric or an entity (such as an FC switch, node, or port) in an FC SAN. The upper-layer protocol of FC uses WWNs for communication. Each entity has a factory-assigned globally unique WWN.

How do I read Lsblk?

How to Use lsblk?

  1. NAME: The first column shows the device name.
  2. MAJ:MIN: The second column, respectively, indicates the major and minor device numbers.
  3. RM: This column displays Boolean values for removable and non-removable devices.
  4. SIZE: This displays the device size in a readable format, i.e., In K, M, G, T, etc.