Frequent question: How do I find my HBA WWN number in Linux?

How do I find HBA WWN in Linux?

There are several commands to determine the WWN of a Fibre Channel (FC) HBA and their status (online/offline). The post discusses few of the most commonly used methods. Another useful command to find the information about HBAs is systool. If not already install, you may need to install the sysfsutils package.

How do I find the HBA card and WWN port 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 know my HBA card number in Linux?

How to check the number of HBA cards or ports are available in my Linux setup ?

1. # lspci | grep -i fibre. 04:00.2 Fibre Channel: Emulex Corporation OneConnect 10Gb FCoE Initiator (be3) (rev 01) …
2. # lspci | grep -i hba. 03:00.0 Fibre Channel: QLogic Corp. …
3. # ls -ld /sys/class/fc_host/*

How do I get HBA card info 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. 15:00.0 Fibre Channel: QLogic Corp. …
2. check if the driver/module loaded in kernel. # lsmod | grep qla2xxx. …
3. check author,description,mdule file name, license, driver version.

How do I find my WWN ID in Linux?

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

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 rescan 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 find the LUN ID in Linux?

so the first device in command “ls -ld /sys/block/sd*/device” corresponds to the first device scene in the command “cat /proc/scsi/scsi” command above. i.e. Host: scsi2 Channel: 00 Id: 00 Lun: 29 corresponds to 2:0:0:29. Check the highlighted portion in both commands to correlate. Another way is to use sg_map command.

What is WWN number?

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 Lun in Linux?

In computer storage, a logical unit number, or LUN, is a number used to identify a logical unit, which is a device addressed by the SCSI protocol or by Storage Area Network protocols that encapsulate SCSI, such as Fibre Channel or iSCSI.

How do I find my WWN virtual machine 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’.

21 сент. 2012 г.

How do you find the WWN?

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.

12 окт. 2018 г.

How do I find my WWN number HP server?

1. Log into ILO either directly or via the blade enclosure.
2. Go to the Information tab of your server.
3. WWN id can be found under the info box for your HBA (see screendump below)

31 мар. 2010 г.

What is HBA in Linux?

Fibre Channel (FC) Host Bus Adapters(HBA) are interface cards that connects the host system to a fibre channel network or devices. The two major manufacturers of FC HBAs are QLogic and Emulex and the drivers for many HBAs are distributed in-box with the Operating Systems.

How do I replace my HBA card in Linux?

Planning Steps:

1. Locate the failed HBA adapter on the physical machine.
2. Note the WWPN of the HBA that will be replaced.
3. Go to the V7000s in the High Aavailability(HA) group and make note which host ports they are and how many will need to be changed.

17 окт. 2019 г.

What is difference between WWN and Wwpn?

A WWPN (World Wide Port Name) is physically assigned to a part in a Fibre Channel device, such as a FC HBA or SAN. … The difference between a node WWN (WWNN), is it can be shared by some or all ports of a device, and a port WWN (WWPN), is one which is necessarily unique to each port.