Working with target portsEdit online You can scan for ports, display port information, recover a port, or remove a port. Scanning for portsNewly available target ports are discovered. However, you might want to trigger a port scan to re-create accidentally removed port information or to assure that all ports are present.Controlling automatic port scanningIf needed, you can fine-tune the frequency and timing of automatic port scans with the zfcp parameters port_scan_backoff and port_scan_ratelimit.Displaying port informationFor each target port, there is a number of read-only sysfs attributes with port information. Recovering a failed portFailed target ports are automatically recovered by the zfcp device driver. You can read the in_recovery attribute to check whether recovery is under way. Removing portsRemoving unused ports can save FCP channel resources. Additionally setting the no_auto_port_rescan attribute avoids unnecessary attempts to recover unused remote ports.Parent topic: SCSI-over-Fibre Channel device driverRelated tasksScanning for portsDisplaying port informationRecovering a failed portRemoving portsControlling automatic port scanning
