Monday 22 July 2019

echo "- - -" > /sys/class/scsi_host/hosth/scan explanation


echo "- - -" > /sys/class/scsi_host/hosth/scan
This procedure will add LUNs, but not remove them.
In this case,  three fields are
1) the channel number, 
2)SCSI target ID
3)LUN values are replaced by wildcards. 
Any combination of identifiers and wildcards is allowed, allowing you to make the command as specific or broad as needed.