This is an old revision of the document!

some useful commands around fibre channel

WWN & Co

get the wwn from the adapers


# for i in $(ls -d /sys/class/scsi_host/host*/device/fc_host/host*/port_name); do echo $i $(cat $i);done


# for i in $(ls -d /sys/class/scsi_host/host*/device/fc_host/host*/port_name); do echo $i $(cat $i);done
/sys/class/scsi_host/host15/device/fc_host/host15/port_name 0x2100f4e9d455702c
/sys/class/scsi_host/host16/device/fc_host/host16/port_name 0x2100f4e9d455702d
/sys/class/scsi_host/host17/device/fc_host/host17/port_name 0x2100f4e9d45573c8
/sys/class/scsi_host/host18/device/fc_host/host18/port_name 0x2100f4e9d45573c9


paths & devices

multipathd commands

multipathd is not only the the multipath daemon itself, but also a useful command for analysing the SAN:

# multipathd --help


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