HBA

HBA is a controller/network card which connects a host system (computer) to other network and storage devices, primarily used with controllers that connect to SCSI, Fibre Channel and eSATA devices

Linux related commands

• Identify your HBAs in Linux:
  • lspci | grep "Fibre Channel" or lspci -nn | grep "Fibre Channel"
  • ls /sys/class/fc_host/
• Fibre Channel LUN Scan or rescan-scsi-bus.sh:
  • echo "1" > /sys/class/fc_host/host1/issue_lip (No output from command) or rescan-scsi-bus.sh -i
  • echo "- - -" > /sys/class/scsi_host/host1/scan
  • lsblk -S

• lssd command part of HP fibreutils package

fc_host

/sys/class/fc_host/host1/port_state [Online]

/sys/class/fc_host/host1/fabric_name

/sys/class/fc_host/host1/node_name (Used for mapping in your storage array)

Related terms

• multipath

See also

• Ethernet: ifconfig
• Fibre Channel: SAN, HBA, LUN, WWN, WWPN, LIF, rescan-scsi-bus.sh
• Block devices: blkid (UUID), lshw -class disk, hwinfo --disk, udevadm, rescan-scsi-bus.sh, LUN, hdparm, findfs, Add a new disk
• lsblk, pvscan lspci, lsscsi, smartctl, fdisk, parted, Kpartx, pvdiplay, pvs, udisksctl, /dev/sd, nvme list
• SCSI