How do I find my WWN number in Linux?
- Find WWN in Linux is easy using existing commands and installing few systools will help us in getting the FC HBA adapter WWN in Linux. …
- We can use lspci command to find the FC HBA adapter details first. …
- Method 1 # lspci |grep -i hba 0e:04.0 Fibre Channel: QLogic Corp.
What is WWN in Linux?
Purpose of wwn number
To add storage to the host, server has to be mapped with storage device by zoning the WWN of both host and storage in Fabric switch. Once the zone is created, the storage team can assign LUNs to a specific Linux host, and new LUN can be discovered by scanning the storage LUN ID at the host end.
What is a 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).
How do I get a WWN number?
Here is a solution to find WWN number of HBA and scan the FC Luns.
- Identify the number of HBA adapters.
- To get the WWNN (World Wide Node Number) of HBA or FC card in Linux.
- To get the WWPN (World Wide Port Number) of HBA or FC card in Linux.
- Scan the newly added or rescan the existing LUNs in Linux.
How do I find HBA 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 Wwpn number in Linux?
Method 2: On Redhat 4 and below (including OEL and CentOS) , the /proc/scsi/[adapter-type]/[n] file contains the HBA WWPN information. adapter-type :It can be either qlaxxxx for QLogic adapters (or) lpfc for Emulex adapters. n refers the number of HBA card available on the system .
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.
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.
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 get my WWN number from ILO?
Log on to ILO and open remote console. Reboot the box by clicking ctrl-alt-del tab as marked in the screen shot. Keep pressing Ctrl+e when you see below screen to enter Emulex BIOS Utility. You will get the below screen where you can enter the choice either 1 or 2 to get WWN details of the server.
What is HBA WWN?
The term host bus adapter (HBA) is often used to refer to a Fibre Channel interface card. … Each Fibre Channel HBA has a unique World Wide Name (WWN), which is similar to an Ethernet MAC address in that it uses an OUI assigned by the IEEE.
How do I find my WWN number HP server?
run “fcinfo” command in Command Prompt. It will show up HBA connected to the server with WWN.
How does HBA card works?
An HBA relies on the speed of the individual devices connected to it for its performance. A RAID adapter, on the other hand, is an add-in card that takes the physical devices connected to it and turns them into a logical device (or RAID array), which the operating system then sees as a single physical drive.